Add LSTM experiment

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

.gitignore

@@ -2,7 +2,6 @@
 # will have compiled files and executables
 debug/
 target/
-log/
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
@@ -11,3 +10,9 @@ log/
 *.pdb
 
 .env*
+
+# ML models
+models/*/rust_model.ot
+notebooks/models/
+
+libdevice.10.bc

.gitlab-ci.yml

@@ -24,13 +24,13 @@ build:
   script:
     - cargo +nightly build
 
-# test:
-#   image: registry.karaolidis.com/karaolidis/qrust/rust
-#   stage: test
-#   cache:
-#     <<: *global_cache
-#   script:
-#     - cargo +nightly test
+test:
+  image: registry.karaolidis.com/karaolidis/qrust/rust
+  stage: test
+  cache:
+    <<: *global_cache
+  script:
+    - cargo +nightly test
 
 lint:
   image: registry.karaolidis.com/karaolidis/qrust/rust
@@ -48,7 +48,7 @@ depcheck:
     <<: *global_cache
   script:
     - cargo +nightly outdated
-    - cargo +nightly udeps --all-targets
+    - cargo +nightly udeps
 
 build-release:
   image: registry.karaolidis.com/karaolidis/qrust/rust

Cargo.toml

@@ -3,14 +3,6 @@ name    = "qrust"
 version = "0.1.0"
 edition = "2021"
 
-[lib]
-name = "qrust"
-path = "src/lib/mod.rs"
-
-[[bin]]
-name = "qrust"
-path = "src/main.rs"
-
 [profile.release]
 panic         = 'abort'
 strip         = true
@@ -51,7 +43,6 @@ clickhouse = { version = "0.11.6", features = [
 ] }
 uuid = { version = "1.6.1", features = [
     "serde",
-    "v4",
 ] }
 time = { version = "0.3.31", features = [
     "serde",
@@ -65,9 +56,8 @@ backoff = { version = "0.4.0", features = [
     "tokio",
 ] }
 regex = "1.10.3"
+html-escape = "0.2.13"
+rust-bert = "0.22.0"
 async-trait = "0.1.77"
 itertools = "0.12.1"
 lazy_static = "1.4.0"
-nonempty = { version = "0.10.0", features = [
-    "serialize",
-] }

log4rs.yaml

@@ -4,14 +4,7 @@ appenders:
     encoder:
       pattern: "{d} {h({l})} {M}::{L} - {m}{n}"
 
-  file:
-    kind: file
-    path: "./log/output.log"
-    encoder:
-      pattern: "{d} {l} {M}::{L} - {m}{n}"
-
 root:
   level: info
   appenders:
     - stdout
-    - file

models/finbert/config.json

@@ -0,0 +1,32 @@
+{
+  "_name_or_path": "/home/ubuntu/finbert/models/language_model/finbertTRC2",
+  "architectures": [
+    "BertForSequenceClassification"
+  ],
+  "attention_probs_dropout_prob": 0.1,
+  "gradient_checkpointing": false,
+  "hidden_act": "gelu",
+  "hidden_dropout_prob": 0.1,
+  "hidden_size": 768,
+  "id2label": {
+    "0": "positive",
+    "1": "negative",
+    "2": "neutral"
+  },
+  "initializer_range": 0.02,
+  "intermediate_size": 3072,
+  "label2id": {
+    "positive": 0,
+    "negative": 1,
+    "neutral": 2
+  },
+  "layer_norm_eps": 1e-12,
+  "max_position_embeddings": 512,
+  "model_type": "bert",
+  "num_attention_heads": 12,
+  "num_hidden_layers": 12,
+  "pad_token_id": 0,
+  "position_embedding_type": "absolute",
+  "type_vocab_size": 2,
+  "vocab_size": 30522
+}

models/finbert/special_tokens_map.json

@@ -0,0 +1 @@
+{"unk_token": "[UNK]", "sep_token": "[SEP]", "pad_token": "[PAD]", "cls_token": "[CLS]", "mask_token": "[MASK]"}

models/finbert/tokenizer_config.json

@@ -0,0 +1 @@
+{"do_lower_case": true, "unk_token": "[UNK]", "sep_token": "[SEP]", "pad_token": "[PAD]", "cls_token": "[CLS]", "mask_token": "[MASK]", "tokenize_chinese_chars": true, "strip_accents": null, "model_max_length": 512, "name_or_path": "bert-base-uncased"}

src/config.rs

@@ -1,49 +1,68 @@
+use crate::types::alpaca::shared::{Mode, Source};
 use governor::{DefaultDirectRateLimiter, Quota, RateLimiter};
 use lazy_static::lazy_static;
-use qrust::types::alpaca::shared::{Mode, Source};
 use reqwest::{
     header::{HeaderMap, HeaderName, HeaderValue},
     Client,
 };
-use std::{env, num::NonZeroU32, sync::Arc};
-use tokio::sync::Semaphore;
+use rust_bert::{
+    pipelines::{
+        common::{ModelResource, ModelType},
+        sequence_classification::{SequenceClassificationConfig, SequenceClassificationModel},
+    },
+    resources::LocalResource,
+};
+use std::{env, num::NonZeroU32, path::PathBuf, sync::Arc};
+use tokio::sync::Mutex;
+
+pub const ALPACA_STOCK_DATA_API_URL: &str = "https://data.alpaca.markets/v2/stocks/bars";
+pub const ALPACA_CRYPTO_DATA_API_URL: &str = "https://data.alpaca.markets/v1beta3/crypto/us/bars";
+pub const ALPACA_NEWS_DATA_API_URL: &str = "https://data.alpaca.markets/v1beta1/news";
+
+pub const ALPACA_STOCK_DATA_WEBSOCKET_URL: &str = "wss://stream.data.alpaca.markets/v2";
+pub const ALPACA_CRYPTO_DATA_WEBSOCKET_URL: &str =
+    "wss://stream.data.alpaca.markets/v1beta3/crypto/us";
+pub const ALPACA_NEWS_DATA_WEBSOCKET_URL: &str = "wss://stream.data.alpaca.markets/v1beta1/news";
 
 lazy_static! {
     pub static ref ALPACA_MODE: Mode = env::var("ALPACA_MODE")
         .expect("ALPACA_MODE must be set.")
         .parse()
         .expect("ALPACA_MODE must be 'live' or 'paper'");
-    pub static ref ALPACA_API_BASE: String = match *ALPACA_MODE {
-        Mode::Live => String::from("api"),
-        Mode::Paper => String::from("paper-api"),
-    };
     pub static ref ALPACA_SOURCE: Source = env::var("ALPACA_SOURCE")
         .expect("ALPACA_SOURCE must be set.")
         .parse()
         .expect("ALPACA_SOURCE must be 'iex', 'sip', or 'otc'");
-    pub static ref ALPACA_API_KEY: String =
-        env::var("ALPACA_API_KEY").expect("ALPACA_API_KEY must be set.");
-    pub static ref ALPACA_API_SECRET: String =
-        env::var("ALPACA_API_SECRET").expect("ALPACA_API_SECRET must be set.");
-    pub static ref CLICKHOUSE_BATCH_BARS_SIZE: usize = env::var("BATCH_BACKFILL_BARS_SIZE")
-        .expect("BATCH_BACKFILL_BARS_SIZE must be set.")
+    pub static ref ALPACA_API_KEY: String = env::var("ALPACA_API_KEY").expect("ALPACA_API_KEY must be set.");
+    pub static ref ALPACA_API_SECRET: String = env::var("ALPACA_API_SECRET").expect("ALPACA_API_SECRET must be set.");
+    #[derive(Debug)]
+    pub static ref ALPACA_API_URL: String = format!(
+        "https://{}.alpaca.markets/v2",
+        match *ALPACA_MODE {
+            Mode::Live => String::from("api"),
+            Mode::Paper => String::from("paper-api"),
+        }
+    );
+    #[derive(Debug)]
+    pub static ref ALPACA_WEBSOCKET_URL: String = format!(
+        "wss://{}.alpaca.markets/stream",
+        match *ALPACA_MODE {
+            Mode::Live => String::from("api"),
+            Mode::Paper => String::from("paper-api"),
+        }
+    );
+    pub static ref MAX_BERT_INPUTS: usize = env::var("MAX_BERT_INPUTS")
+        .expect("MAX_BERT_INPUTS must be set.")
         .parse()
-        .expect("BATCH_BACKFILL_BARS_SIZE must be a positive integer.");
-    pub static ref CLICKHOUSE_BATCH_NEWS_SIZE: usize = env::var("BATCH_BACKFILL_NEWS_SIZE")
-        .expect("BATCH_BACKFILL_NEWS_SIZE must be set.")
-        .parse()
-        .expect("BATCH_BACKFILL_NEWS_SIZE must be a positive integer.");
-    pub static ref CLICKHOUSE_MAX_CONNECTIONS: usize = env::var("CLICKHOUSE_MAX_CONNECTIONS")
-        .expect("CLICKHOUSE_MAX_CONNECTIONS must be set.")
-        .parse()
-        .expect("CLICKHOUSE_MAX_CONNECTIONS must be a positive integer.");
+        .expect("MAX_BERT_INPUTS must be a positive integer.");
+
 }
 
 pub struct Config {
     pub alpaca_client: Client,
     pub alpaca_rate_limiter: DefaultDirectRateLimiter,
     pub clickhouse_client: clickhouse::Client,
-    pub clickhouse_concurrency_limiter: Arc<Semaphore>,
+    pub sequence_classifier: Mutex<SequenceClassificationModel>,
 }
 
 impl Config {
@@ -66,7 +85,7 @@ impl Config {
                 .unwrap(),
             alpaca_rate_limiter: RateLimiter::direct(Quota::per_minute(match *ALPACA_SOURCE {
                 Source::Iex => unsafe { NonZeroU32::new_unchecked(200) },
-                Source::Sip => unsafe { NonZeroU32::new_unchecked(10_000) },
+                Source::Sip => unsafe { NonZeroU32::new_unchecked(10000) },
                 Source::Otc => unimplemented!("OTC rate limit not implemented."),
             })),
             clickhouse_client: clickhouse::Client::default()
@@ -76,7 +95,25 @@ impl Config {
                     env::var("CLICKHOUSE_PASSWORD").expect("CLICKHOUSE_PASSWORD must be set."),
                 )
                 .with_database(env::var("CLICKHOUSE_DB").expect("CLICKHOUSE_DB must be set.")),
-            clickhouse_concurrency_limiter: Arc::new(Semaphore::new(*CLICKHOUSE_MAX_CONNECTIONS)),
+            sequence_classifier: Mutex::new(
+                SequenceClassificationModel::new(SequenceClassificationConfig::new(
+                    ModelType::Bert,
+                    ModelResource::Torch(Box::new(LocalResource {
+                        local_path: PathBuf::from("./models/finbert/rust_model.ot"),
+                    })),
+                    LocalResource {
+                        local_path: PathBuf::from("./models/finbert/config.json"),
+                    },
+                    LocalResource {
+                        local_path: PathBuf::from("./models/finbert/vocab.txt"),
+                    },
+                    None,
+                    true,
+                    None,
+                    None,
+                ))
+                .unwrap(),
+            ),
         }
     }
 

src/database/assets.rs

@@ -1,11 +1,8 @@
-use std::sync::Arc;
-
 use crate::{
     delete_where_symbols, optimize, select, select_where_symbol, types::Asset, upsert_batch,
 };
 use clickhouse::{error::Error, Client};
 use serde::Serialize;
-use tokio::sync::Semaphore;
 
 select!(Asset, "assets");
 select_where_symbol!(Asset, "assets");
@@ -14,16 +11,14 @@ delete_where_symbols!("assets");
 optimize!("assets");
 
 pub async fn update_status_where_symbol<T>(
-    client: &Client,
-    concurrency_limiter: &Arc<Semaphore>,
+    clickhouse_client: &Client,
     symbol: &T,
     status: bool,
 ) -> Result<(), Error>
 where
     T: AsRef<str> + Serialize + Send + Sync,
 {
-    let _ = concurrency_limiter.acquire().await.unwrap();
-    client
+    clickhouse_client
         .query("ALTER TABLE assets UPDATE status = ? WHERE symbol = ?")
         .bind(status)
         .bind(symbol)
@@ -32,16 +27,14 @@ where
 }
 
 pub async fn update_qty_where_symbol<T>(
-    client: &Client,
-    concurrency_limiter: &Arc<Semaphore>,
+    clickhouse_client: &Client,
     symbol: &T,
     qty: f64,
 ) -> Result<(), Error>
 where
     T: AsRef<str> + Serialize + Send + Sync,
 {
-    let _ = concurrency_limiter.acquire().await.unwrap();
-    client
+    clickhouse_client
         .query("ALTER TABLE assets UPDATE qty = ? WHERE symbol = ?")
         .bind(qty)
         .bind(symbol)

src/database/backfills_bars.rs

@@ -0,0 +1,17 @@
+use crate::{
+    cleanup, delete_where_symbols, optimize, select_where_symbol, types::Backfill, upsert,
+};
+use clickhouse::{error::Error, Client};
+
+select_where_symbol!(Backfill, "backfills_bars");
+upsert!(Backfill, "backfills_bars");
+delete_where_symbols!("backfills_bars");
+cleanup!("backfills_bars");
+optimize!("backfills_bars");
+
+pub async fn unfresh(clickhouse_client: &Client) -> Result<(), Error> {
+    clickhouse_client
+        .query("ALTER TABLE backfills_bars UPDATE fresh = false WHERE true")
+        .execute()
+        .await
+}

src/database/backfills_news.rs

@@ -0,0 +1,17 @@
+use crate::{
+    cleanup, delete_where_symbols, optimize, select_where_symbol, types::Backfill, upsert,
+};
+use clickhouse::{error::Error, Client};
+
+select_where_symbol!(Backfill, "backfills_news");
+upsert!(Backfill, "backfills_news");
+delete_where_symbols!("backfills_news");
+cleanup!("backfills_news");
+optimize!("backfills_news");
+
+pub async fn unfresh(clickhouse_client: &Client) -> Result<(), Error> {
+    clickhouse_client
+        .query("ALTER TABLE backfills_news UPDATE fresh = false WHERE true")
+        .execute()
+        .await
+}

src/database/bars.rs

@@ -0,0 +1,7 @@
+use crate::{cleanup, delete_where_symbols, optimize, types::Bar, upsert, upsert_batch};
+
+upsert!(Bar, "bars");
+upsert_batch!(Bar, "bars");
+delete_where_symbols!("bars");
+cleanup!("bars");
+optimize!("bars");

src/database/calendar.rs

@@ -1,19 +1,16 @@
-use std::sync::Arc;
-
 use crate::{optimize, types::Calendar};
-use clickhouse::{error::Error, Client};
-use tokio::{sync::Semaphore, try_join};
+use clickhouse::error::Error;
+use tokio::try_join;
 
 optimize!("calendar");
 
-pub async fn upsert_batch_and_delete<'a, I>(
-    client: &Client,
-    concurrency_limiter: &Arc<Semaphore>,
-    records: I,
+pub async fn upsert_batch_and_delete<'a, T>(
+    client: &clickhouse::Client,
+    records: T,
 ) -> Result<(), Error>
 where
-    I: IntoIterator<Item = &'a Calendar> + Send + Sync + Clone,
-    I::IntoIter: Send,
+    T: IntoIterator<Item = &'a Calendar> + Send + Sync + Clone,
+    T::IntoIter: Send,
 {
     let upsert_future = async {
         let mut insert = client.insert("calendar")?;
@@ -37,6 +34,5 @@ where
             .await
     };
 
-    let _ = concurrency_limiter.acquire_many(2).await.unwrap();
     try_join!(upsert_future, delete_future).map(|_| ())
 }

src/database/mod.rs

@@ -0,0 +1,152 @@
+pub mod assets;
+pub mod backfills_bars;
+pub mod backfills_news;
+pub mod bars;
+pub mod calendar;
+pub mod news;
+pub mod orders;
+
+use clickhouse::{error::Error, Client};
+use log::info;
+use tokio::try_join;
+
+#[macro_export]
+macro_rules! select {
+    ($record:ty, $table_name:expr) => {
+        pub async fn select(
+            client: &clickhouse::Client,
+        ) -> Result<Vec<$record>, clickhouse::error::Error> {
+            client
+                .query(&format!("SELECT ?fields FROM {} FINAL", $table_name))
+                .fetch_all::<$record>()
+                .await
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! select_where_symbol {
+    ($record:ty, $table_name:expr) => {
+        pub async fn select_where_symbol<T>(
+            client: &clickhouse::Client,
+            symbol: &T,
+        ) -> Result<Option<$record>, clickhouse::error::Error>
+        where
+            T: AsRef<str> + serde::Serialize + Send + Sync,
+        {
+            client
+                .query(&format!(
+                    "SELECT ?fields FROM {} FINAL WHERE symbol = ?",
+                    $table_name
+                ))
+                .bind(symbol)
+                .fetch_optional::<$record>()
+                .await
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! upsert {
+    ($record:ty, $table_name:expr) => {
+        pub async fn upsert(
+            client: &clickhouse::Client,
+            record: &$record,
+        ) -> Result<(), clickhouse::error::Error> {
+            let mut insert = client.insert($table_name)?;
+            insert.write(record).await?;
+            insert.end().await
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! upsert_batch {
+    ($record:ty, $table_name:expr) => {
+        pub async fn upsert_batch<'a, T>(
+            client: &clickhouse::Client,
+            records: T,
+        ) -> Result<(), clickhouse::error::Error>
+        where
+            T: IntoIterator<Item = &'a $record> + Send + Sync,
+            T::IntoIter: Send,
+        {
+            let mut insert = client.insert($table_name)?;
+            for record in records {
+                insert.write(record).await?;
+            }
+            insert.end().await
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! delete_where_symbols {
+    ($table_name:expr) => {
+        pub async fn delete_where_symbols<T>(
+            client: &clickhouse::Client,
+            symbols: &[T],
+        ) -> Result<(), clickhouse::error::Error>
+        where
+            T: AsRef<str> + serde::Serialize + Send + Sync,
+        {
+            client
+                .query(&format!("DELETE FROM {} WHERE symbol IN ?", $table_name))
+                .bind(symbols)
+                .execute()
+                .await
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! cleanup {
+    ($table_name:expr) => {
+        pub async fn cleanup(client: &clickhouse::Client) -> Result<(), clickhouse::error::Error> {
+            client
+                .query(&format!(
+                    "DELETE FROM {} WHERE symbol NOT IN (SELECT symbol FROM assets)",
+                    $table_name
+                ))
+                .execute()
+                .await
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! optimize {
+    ($table_name:expr) => {
+        pub async fn optimize(client: &clickhouse::Client) -> Result<(), clickhouse::error::Error> {
+            client
+                .query(&format!("OPTIMIZE TABLE {} FINAL", $table_name))
+                .execute()
+                .await
+        }
+    };
+}
+
+pub async fn cleanup_all(clickhouse_client: &Client) -> Result<(), Error> {
+    info!("Cleaning up database.");
+    try_join!(
+        bars::cleanup(clickhouse_client),
+        news::cleanup(clickhouse_client),
+        backfills_bars::cleanup(clickhouse_client),
+        backfills_news::cleanup(clickhouse_client)
+    )
+    .map(|_| ())
+}
+
+pub async fn optimize_all(clickhouse_client: &Client) -> Result<(), Error> {
+    info!("Optimizing database.");
+    try_join!(
+        assets::optimize(clickhouse_client),
+        bars::optimize(clickhouse_client),
+        news::optimize(clickhouse_client),
+        backfills_bars::optimize(clickhouse_client),
+        backfills_news::optimize(clickhouse_client),
+        orders::optimize(clickhouse_client),
+        calendar::optimize(clickhouse_client)
+    )
+    .map(|_| ())
+}

src/database/news.rs

@@ -1,33 +1,24 @@
-use std::sync::Arc;
-
 use crate::{optimize, types::News, upsert, upsert_batch};
 use clickhouse::{error::Error, Client};
 use serde::Serialize;
-use tokio::sync::Semaphore;
 
 upsert!(News, "news");
 upsert_batch!(News, "news");
 optimize!("news");
 
-pub async fn delete_where_symbols<T>(
-    client: &Client,
-    concurrency_limiter: &Arc<Semaphore>,
-    symbols: &[T],
-) -> Result<(), Error>
+pub async fn delete_where_symbols<T>(clickhouse_client: &Client, symbols: &[T]) -> Result<(), Error>
 where
     T: AsRef<str> + Serialize + Send + Sync,
 {
-    let _ = concurrency_limiter.acquire().await.unwrap();
-    client
+    clickhouse_client
         .query("DELETE FROM news WHERE hasAny(symbols, ?) AND NOT hasAny(symbols, (SELECT groupArray(symbol) FROM assets))")
         .bind(symbols)
         .execute()
         .await
 }
 
-pub async fn cleanup(client: &Client, concurrency_limiter: &Arc<Semaphore>) -> Result<(), Error> {
-    let _ = concurrency_limiter.acquire().await.unwrap();
-    client
+pub async fn cleanup(clickhouse_client: &Client) -> Result<(), Error> {
+    clickhouse_client
         .query(
             "DELETE FROM news WHERE NOT hasAny(symbols, (SELECT groupArray(symbol) FROM assets))",
         )

src/init.rs

@@ -1,25 +1,24 @@
 use crate::{
-    config::{Config, ALPACA_API_BASE},
+    config::{Config, ALPACA_MODE},
     database,
+    types::alpaca,
 };
 use log::{info, warn};
-use qrust::{alpaca, types};
 use std::{collections::HashMap, sync::Arc};
 use time::OffsetDateTime;
 use tokio::join;
 
 pub async fn check_account(config: &Arc<Config>) {
-    let account = alpaca::account::get(
+    let account = alpaca::api::incoming::account::get(
         &config.alpaca_client,
         &config.alpaca_rate_limiter,
         None,
-        &ALPACA_API_BASE,
     )
     .await
     .unwrap();
 
     assert!(
-        !(account.status != types::alpaca::api::incoming::account::Status::Active),
+        !(account.status != alpaca::api::incoming::account::Status::Active),
         "Account status is not active: {:?}.",
         account.status
     );
@@ -34,60 +33,56 @@ pub async fn check_account(config: &Arc<Config>) {
         warn!("Account cash is zero, qrust will not be able to trade.");
     }
 
-    info!(
-        "qrust running on {} account with {} {}, avoid transferring funds without shutting down.",
-        *ALPACA_API_BASE, account.currency, account.cash
+    warn!(
+        "qrust active on {} account with {} {}, avoid transferring funds without shutting down.",
+        *ALPACA_MODE, account.currency, account.cash
     );
 }
 
 pub async fn rehydrate_orders(config: &Arc<Config>) {
+    info!("Rehydrating order data.");
+
     let mut orders = vec![];
     let mut after = OffsetDateTime::UNIX_EPOCH;
 
-    loop {
-        let message = alpaca::orders::get(
-            &config.alpaca_client,
-            &config.alpaca_rate_limiter,
-            &types::alpaca::api::outgoing::order::Order {
-                status: Some(types::alpaca::api::outgoing::order::Status::All),
-                after: Some(after),
-                ..Default::default()
-            },
-            None,
-            &ALPACA_API_BASE,
-        )
-        .await
-        .unwrap();
-
-        if message.is_empty() {
-            break;
-        }
-
+    while let Some(message) = alpaca::api::incoming::order::get(
+        &config.alpaca_client,
+        &config.alpaca_rate_limiter,
+        &alpaca::api::outgoing::order::Order {
+            status: Some(alpaca::api::outgoing::order::Status::All),
+            after: Some(after),
+            ..Default::default()
+        },
+        None,
+    )
+    .await
+    .ok()
+    .filter(|message| !message.is_empty())
+    {
         orders.extend(message);
         after = orders.last().unwrap().submitted_at;
     }
 
     let orders = orders
         .into_iter()
-        .flat_map(&types::alpaca::api::incoming::order::Order::normalize)
+        .flat_map(&alpaca::api::incoming::order::Order::normalize)
         .collect::<Vec<_>>();
 
-    database::orders::upsert_batch(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-        &orders,
-    )
-    .await
-    .unwrap();
+    database::orders::upsert_batch(&config.clickhouse_client, &orders)
+        .await
+        .unwrap();
+
+    info!("Rehydrated order data.");
 }
 
 pub async fn rehydrate_positions(config: &Arc<Config>) {
+    info!("Rehydrating position data.");
+
     let positions_future = async {
-        alpaca::positions::get(
+        alpaca::api::incoming::position::get(
             &config.alpaca_client,
             &config.alpaca_rate_limiter,
             None,
-            &ALPACA_API_BASE,
         )
         .await
         .unwrap()
@@ -97,12 +92,9 @@ pub async fn rehydrate_positions(config: &Arc<Config>) {
     };
 
     let assets_future = async {
-        database::assets::select(
-            &config.clickhouse_client,
-            &config.clickhouse_concurrency_limiter,
-        )
-        .await
-        .unwrap()
+        database::assets::select(&config.clickhouse_client)
+            .await
+            .unwrap()
     };
 
     let (mut positions, assets) = join!(positions_future, assets_future);
@@ -119,13 +111,9 @@ pub async fn rehydrate_positions(config: &Arc<Config>) {
         })
         .collect::<Vec<_>>();
 
-    database::assets::upsert_batch(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-        &assets,
-    )
-    .await
-    .unwrap();
+    database::assets::upsert_batch(&config.clickhouse_client, &assets)
+        .await
+        .unwrap();
 
     for position in positions.values() {
         warn!(
@@ -133,4 +121,6 @@ pub async fn rehydrate_positions(config: &Arc<Config>) {
             position.symbol, position.qty
         );
     }
+
+    info!("Rehydrated position data.");
 }

src/lib/alpaca/account.rs

@@ -1,39 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::incoming::account::Account;
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use log::warn;
-use reqwest::{Client, Error};
-use std::time::Duration;
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Account, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!("https://{}.alpaca.markets/v2/account", api_base))
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Account>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get account, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}

src/lib/alpaca/assets.rs

@@ -1,132 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::{
-    incoming::asset::{Asset, Class},
-    outgoing,
-};
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use itertools::Itertools;
-use log::warn;
-use reqwest::{Client, Error};
-use std::{collections::HashSet, time::Duration};
-use tokio::try_join;
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    query: &outgoing::asset::Asset,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Vec<Asset>, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!("https://{}.alpaca.markets/v2/assets", api_base))
-                .query(query)
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Vec<Asset>>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get assets, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}
-
-pub async fn get_by_symbol(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    symbol: &str,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Asset, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!(
-                    "https://{}.alpaca.markets/v2/assets/{}",
-                    api_base, symbol
-                ))
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Asset>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get asset, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}
-
-pub async fn get_by_symbols(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    symbols: &[String],
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Vec<Asset>, Error> {
-    if symbols.is_empty() {
-        return Ok(vec![]);
-    }
-
-    if symbols.len() == 1 {
-        let asset = get_by_symbol(client, rate_limiter, &symbols[0], backoff, api_base).await?;
-        return Ok(vec![asset]);
-    }
-
-    let symbols = symbols.iter().collect::<HashSet<_>>();
-
-    let backoff_clone = backoff.clone();
-
-    let us_equity_query = outgoing::asset::Asset {
-        class: Some(Class::UsEquity),
-        ..Default::default()
-    };
-
-    let us_equity_assets = get(
-        client,
-        rate_limiter,
-        &us_equity_query,
-        backoff_clone,
-        api_base,
-    );
-
-    let crypto_query = outgoing::asset::Asset {
-        class: Some(Class::Crypto),
-        ..Default::default()
-    };
-
-    let crypto_assets = get(client, rate_limiter, &crypto_query, backoff, api_base);
-
-    let (us_equity_assets, crypto_assets) = try_join!(us_equity_assets, crypto_assets)?;
-
-    Ok(crypto_assets
-        .into_iter()
-        .chain(us_equity_assets)
-        .dedup_by(|a, b| a.symbol == b.symbol)
-        .filter(|asset| symbols.contains(&asset.symbol))
-        .collect())
-}

src/lib/alpaca/bars.rs

@@ -1,50 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::{incoming::bar::Bar, outgoing};
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use log::warn;
-use reqwest::{Client, Error};
-use serde::Deserialize;
-use std::{collections::HashMap, time::Duration};
-
-pub const MAX_LIMIT: i64 = 10_000;
-
-#[derive(Deserialize)]
-pub struct Message {
-    pub bars: HashMap<String, Vec<Bar>>,
-    pub next_page_token: Option<String>,
-}
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    data_url: &str,
-    query: &outgoing::bar::Bar,
-    backoff: Option<ExponentialBackoff>,
-) -> Result<Message, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(data_url)
-                .query(query)
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Message>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get historical bars, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}

src/lib/alpaca/calendar.rs

@@ -1,41 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::{incoming::calendar::Calendar, outgoing};
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use log::warn;
-use reqwest::{Client, Error};
-use std::time::Duration;
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    query: &outgoing::calendar::Calendar,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Vec<Calendar>, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!("https://{}.alpaca.markets/v2/calendar", api_base))
-                .query(query)
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Vec<Calendar>>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get calendar, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}

src/lib/alpaca/clock.rs

@@ -1,39 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::incoming::clock::Clock;
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use log::warn;
-use reqwest::{Client, Error};
-use std::time::Duration;
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Clock, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!("https://{}.alpaca.markets/v2/clock", api_base))
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Clock>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get clock, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}

src/lib/alpaca/mod.rs

@@ -1,27 +0,0 @@
-pub mod account;
-pub mod assets;
-pub mod bars;
-pub mod calendar;
-pub mod clock;
-pub mod news;
-pub mod orders;
-pub mod positions;
-
-use reqwest::StatusCode;
-
-pub fn error_to_backoff(err: reqwest::Error) -> backoff::Error<reqwest::Error> {
-    if err.is_status() {
-        return match err.status() {
-            Some(StatusCode::BAD_REQUEST | StatusCode::FORBIDDEN | StatusCode::NOT_FOUND)
-            | None => backoff::Error::Permanent(err),
-            _ => err.into(),
-        };
-    }
-
-    if err.is_builder() || err.is_request() || err.is_redirect() || err.is_decode() || err.is_body()
-    {
-        return backoff::Error::Permanent(err);
-    }
-
-    err.into()
-}

src/lib/alpaca/news.rs

@@ -1,49 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::{incoming::news::News, outgoing, ALPACA_NEWS_DATA_API_URL};
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use log::warn;
-use reqwest::{Client, Error};
-use serde::Deserialize;
-use std::time::Duration;
-
-pub const MAX_LIMIT: i64 = 50;
-
-#[derive(Deserialize)]
-pub struct Message {
-    pub news: Vec<News>,
-    pub next_page_token: Option<String>,
-}
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    query: &outgoing::news::News,
-    backoff: Option<ExponentialBackoff>,
-) -> Result<Message, Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(ALPACA_NEWS_DATA_API_URL)
-                .query(query)
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Message>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get historical news, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}

src/lib/alpaca/positions.rs

@@ -1,108 +0,0 @@
-use super::error_to_backoff;
-use crate::types::alpaca::api::incoming::position::Position;
-use backoff::{future::retry_notify, ExponentialBackoff};
-use governor::DefaultDirectRateLimiter;
-use log::warn;
-use reqwest::Client;
-use std::{collections::HashSet, time::Duration};
-
-pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Vec<Position>, reqwest::Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!("https://{}.alpaca.markets/v2/positions", api_base))
-                .send()
-                .await
-                .map_err(error_to_backoff)?
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Vec<Position>>()
-                .await
-                .map_err(error_to_backoff)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get positions, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}
-
-pub async fn get_by_symbol(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    symbol: &str,
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Option<Position>, reqwest::Error> {
-    retry_notify(
-        backoff.unwrap_or_default(),
-        || async {
-            rate_limiter.until_ready().await;
-            let response = client
-                .get(&format!(
-                    "https://{}.alpaca.markets/v2/positions/{}",
-                    api_base, symbol
-                ))
-                .send()
-                .await
-                .map_err(error_to_backoff)?;
-
-            if response.status() == reqwest::StatusCode::NOT_FOUND {
-                return Ok(None);
-            }
-
-            response
-                .error_for_status()
-                .map_err(error_to_backoff)?
-                .json::<Position>()
-                .await
-                .map_err(error_to_backoff)
-                .map(Some)
-        },
-        |e, duration: Duration| {
-            warn!(
-                "Failed to get position, will retry in {} seconds: {}.",
-                duration.as_secs(),
-                e
-            );
-        },
-    )
-    .await
-}
-
-pub async fn get_by_symbols(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
-    symbols: &[String],
-    backoff: Option<ExponentialBackoff>,
-    api_base: &str,
-) -> Result<Vec<Position>, reqwest::Error> {
-    if symbols.is_empty() {
-        return Ok(vec![]);
-    }
-
-    if symbols.len() == 1 {
-        let position = get_by_symbol(client, rate_limiter, &symbols[0], backoff, api_base).await?;
-        return Ok(position.into_iter().collect());
-    }
-
-    let symbols = symbols.iter().collect::<HashSet<_>>();
-
-    let positions = get(client, rate_limiter, backoff, api_base).await?;
-
-    Ok(positions
-        .into_iter()
-        .filter(|position| symbols.contains(&position.symbol))
-        .collect())
-}

src/lib/database/backfills_bars.rs

@@ -1,11 +0,0 @@
-use crate::{
-    cleanup, delete_where_symbols, optimize, select_where_symbols, set_fresh_where_symbols,
-    types::Backfill, upsert_batch,
-};
-
-select_where_symbols!(Backfill, "backfills_bars");
-upsert_batch!(Backfill, "backfills_bars");
-delete_where_symbols!("backfills_bars");
-cleanup!("backfills_bars");
-optimize!("backfills_bars");
-set_fresh_where_symbols!("backfills_bars");

src/lib/database/backfills_news.rs

@@ -1,11 +0,0 @@
-use crate::{
-    cleanup, delete_where_symbols, optimize, select_where_symbols, set_fresh_where_symbols,
-    types::Backfill, upsert_batch,
-};
-
-select_where_symbols!(Backfill, "backfills_news");
-upsert_batch!(Backfill, "backfills_news");
-delete_where_symbols!("backfills_news");
-cleanup!("backfills_news");
-optimize!("backfills_news");
-set_fresh_where_symbols!("backfills_news");

src/lib/database/bars.rs

@@ -1,21 +0,0 @@
-use std::sync::Arc;
-
-use crate::{delete_where_symbols, optimize, types::Bar, upsert, upsert_batch};
-use clickhouse::Client;
-use tokio::sync::Semaphore;
-
-upsert!(Bar, "bars");
-upsert_batch!(Bar, "bars");
-delete_where_symbols!("bars");
-optimize!("bars");
-
-pub async fn cleanup(
-    client: &Client,
-    concurrency_limiter: &Arc<Semaphore>,
-) -> Result<(), clickhouse::error::Error> {
-    let _ = concurrency_limiter.acquire().await.unwrap();
-    client
-        .query("DELETE FROM bars WHERE symbol NOT IN (SELECT symbol FROM assets) OR symbol NOT IN (SELECT symbol FROM backfills_bars)")
-        .execute()
-        .await
-}

src/lib/database/mod.rs

@@ -1,223 +0,0 @@
-pub mod assets;
-pub mod backfills_bars;
-pub mod backfills_news;
-pub mod bars;
-pub mod calendar;
-pub mod news;
-pub mod orders;
-
-use clickhouse::{error::Error, Client};
-use tokio::try_join;
-
-#[macro_export]
-macro_rules! select {
-    ($record:ty, $table_name:expr) => {
-        pub async fn select(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-        ) -> Result<Vec<$record>, clickhouse::error::Error> {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!("SELECT ?fields FROM {} FINAL", $table_name))
-                .fetch_all::<$record>()
-                .await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! select_where_symbol {
-    ($record:ty, $table_name:expr) => {
-        pub async fn select_where_symbol<T>(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-            symbol: &T,
-        ) -> Result<Option<$record>, clickhouse::error::Error>
-        where
-            T: AsRef<str> + serde::Serialize + Send + Sync,
-        {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!(
-                    "SELECT ?fields FROM {} FINAL WHERE symbol = ?",
-                    $table_name
-                ))
-                .bind(symbol)
-                .fetch_optional::<$record>()
-                .await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! select_where_symbols {
-    ($record:ty, $table_name:expr) => {
-        pub async fn select_where_symbols<T>(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-            symbols: &[T],
-        ) -> Result<Vec<$record>, clickhouse::error::Error>
-        where
-            T: AsRef<str> + serde::Serialize + Send + Sync,
-        {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!(
-                    "SELECT ?fields FROM {} FINAL WHERE symbol IN ?",
-                    $table_name
-                ))
-                .bind(symbols)
-                .fetch_all::<$record>()
-                .await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! upsert {
-    ($record:ty, $table_name:expr) => {
-        pub async fn upsert(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-            record: &$record,
-        ) -> Result<(), clickhouse::error::Error> {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            let mut insert = client.insert($table_name)?;
-            insert.write(record).await?;
-            insert.end().await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! upsert_batch {
-    ($record:ty, $table_name:expr) => {
-        pub async fn upsert_batch<'a, I>(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-            records: I,
-        ) -> Result<(), clickhouse::error::Error>
-        where
-            I: IntoIterator<Item = &'a $record> + Send + Sync,
-            I::IntoIter: Send,
-        {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            let mut insert = client.insert($table_name)?;
-            for record in records {
-                insert.write(record).await?;
-            }
-            insert.end().await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! delete_where_symbols {
-    ($table_name:expr) => {
-        pub async fn delete_where_symbols<T>(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-            symbols: &[T],
-        ) -> Result<(), clickhouse::error::Error>
-        where
-            T: AsRef<str> + serde::Serialize + Send + Sync,
-        {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!("DELETE FROM {} WHERE symbol IN ?", $table_name))
-                .bind(symbols)
-                .execute()
-                .await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! cleanup {
-    ($table_name:expr) => {
-        pub async fn cleanup(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-        ) -> Result<(), clickhouse::error::Error> {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!(
-                    "DELETE FROM {} WHERE symbol NOT IN (SELECT symbol FROM assets)",
-                    $table_name
-                ))
-                .execute()
-                .await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! optimize {
-    ($table_name:expr) => {
-        pub async fn optimize(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-        ) -> Result<(), clickhouse::error::Error> {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!("OPTIMIZE TABLE {} FINAL", $table_name))
-                .execute()
-                .await
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! set_fresh_where_symbols {
-    ($table_name:expr) => {
-        pub async fn set_fresh_where_symbols<T>(
-            client: &clickhouse::Client,
-            concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-            fresh: bool,
-            symbols: &[T],
-        ) -> Result<(), clickhouse::error::Error>
-        where
-            T: AsRef<str> + serde::Serialize + Send + Sync,
-        {
-            let _ = concurrency_limiter.acquire().await.unwrap();
-            client
-                .query(&format!(
-                    "ALTER TABLE {} UPDATE fresh = ? WHERE symbol IN ?",
-                    $table_name
-                ))
-                .bind(fresh)
-                .bind(symbols)
-                .execute()
-                .await
-        }
-    };
-}
-
-pub async fn cleanup_all(
-    clickhouse_client: &Client,
-    concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-) -> Result<(), Error> {
-    try_join!(
-        bars::cleanup(clickhouse_client, concurrency_limiter),
-        news::cleanup(clickhouse_client, concurrency_limiter),
-        backfills_bars::cleanup(clickhouse_client, concurrency_limiter),
-        backfills_news::cleanup(clickhouse_client, concurrency_limiter)
-    )
-    .map(|_| ())
-}
-
-pub async fn optimize_all(
-    clickhouse_client: &Client,
-    concurrency_limiter: &std::sync::Arc<tokio::sync::Semaphore>,
-) -> Result<(), Error> {
-    try_join!(
-        assets::optimize(clickhouse_client, concurrency_limiter),
-        bars::optimize(clickhouse_client, concurrency_limiter),
-        news::optimize(clickhouse_client, concurrency_limiter),
-        backfills_bars::optimize(clickhouse_client, concurrency_limiter),
-        backfills_news::optimize(clickhouse_client, concurrency_limiter),
-        orders::optimize(clickhouse_client, concurrency_limiter),
-        calendar::optimize(clickhouse_client, concurrency_limiter)
-    )
-    .map(|_| ())
-}

src/lib/mod.rs

@@ -1,4 +0,0 @@
-pub mod alpaca;
-pub mod database;
-pub mod types;
-pub mod utils;

src/lib/types/alpaca/api/incoming/asset.rs

@@ -1,39 +0,0 @@
-use super::position::Position;
-use crate::types::{self, alpaca::shared::asset};
-use serde::Deserialize;
-use serde_aux::field_attributes::deserialize_option_number_from_string;
-use uuid::Uuid;
-
-pub use asset::{Class, Exchange, Status};
-
-#[allow(clippy::struct_excessive_bools)]
-#[derive(Deserialize, Clone)]
-pub struct Asset {
-    pub id: Uuid,
-    pub class: Class,
-    pub exchange: Exchange,
-    pub symbol: String,
-    pub name: String,
-    pub status: Status,
-    pub tradable: bool,
-    pub marginable: bool,
-    pub shortable: bool,
-    pub easy_to_borrow: bool,
-    pub fractionable: bool,
-    #[serde(deserialize_with = "deserialize_option_number_from_string")]
-    pub maintenance_margin_requirement: Option<f32>,
-    pub attributes: Option<Vec<String>>,
-}
-
-impl From<(Asset, Option<Position>)> for types::Asset {
-    fn from((asset, position): (Asset, Option<Position>)) -> Self {
-        Self {
-            symbol: asset.symbol,
-            class: asset.class.into(),
-            exchange: asset.exchange.into(),
-            status: asset.status.into(),
-            time_added: time::OffsetDateTime::now_utc(),
-            qty: position.map(|position| position.qty).unwrap_or_default(),
-        }
-    }
-}

src/lib/types/alpaca/api/incoming/bar.rs

@@ -1,40 +0,0 @@
-use crate::types;
-use serde::Deserialize;
-use time::OffsetDateTime;
-
-#[derive(Deserialize)]
-pub struct Bar {
-    #[serde(rename = "t")]
-    #[serde(with = "time::serde::rfc3339")]
-    pub time: OffsetDateTime,
-    #[serde(rename = "o")]
-    pub open: f64,
-    #[serde(rename = "h")]
-    pub high: f64,
-    #[serde(rename = "l")]
-    pub low: f64,
-    #[serde(rename = "c")]
-    pub close: f64,
-    #[serde(rename = "v")]
-    pub volume: f64,
-    #[serde(rename = "n")]
-    pub trades: i64,
-    #[serde(rename = "vw")]
-    pub vwap: f64,
-}
-
-impl From<(Bar, String)> for types::Bar {
-    fn from((bar, symbol): (Bar, String)) -> Self {
-        Self {
-            time: bar.time,
-            symbol,
-            open: bar.open,
-            high: bar.high,
-            low: bar.low,
-            close: bar.close,
-            volume: bar.volume,
-            trades: bar.trades,
-            vwap: bar.vwap,
-        }
-    }
-}

src/lib/types/alpaca/api/incoming/calendar.rs

@@ -1,26 +0,0 @@
-use crate::{
-    types,
-    utils::{de, time::EST_OFFSET},
-};
-use serde::Deserialize;
-use time::{Date, OffsetDateTime, Time};
-
-#[derive(Deserialize)]
-pub struct Calendar {
-    pub date: Date,
-    #[serde(deserialize_with = "de::human_time_hh_mm")]
-    pub open: Time,
-    #[serde(deserialize_with = "de::human_time_hh_mm")]
-    pub close: Time,
-    pub settlement_date: Date,
-}
-
-impl From<Calendar> for types::Calendar {
-    fn from(calendar: Calendar) -> Self {
-        Self {
-            date: calendar.date,
-            open: OffsetDateTime::new_in_offset(calendar.date, calendar.open, *EST_OFFSET),
-            close: OffsetDateTime::new_in_offset(calendar.date, calendar.close, *EST_OFFSET),
-        }
-    }
-}

src/lib/types/alpaca/api/incoming/clock.rs

@@ -1,13 +0,0 @@
-use serde::Deserialize;
-use time::OffsetDateTime;
-
-#[derive(Deserialize)]
-pub struct Clock {
-    #[serde(with = "time::serde::rfc3339")]
-    pub timestamp: OffsetDateTime,
-    pub is_open: bool,
-    #[serde(with = "time::serde::rfc3339")]
-    pub next_open: OffsetDateTime,
-    #[serde(with = "time::serde::rfc3339")]
-    pub next_close: OffsetDateTime,
-}

src/lib/types/alpaca/api/incoming/news.rs

@@ -1,57 +0,0 @@
-use crate::{
-    types::{self, alpaca::shared::news::strip},
-    utils::de,
-};
-use serde::Deserialize;
-use time::OffsetDateTime;
-
-#[derive(Deserialize)]
-#[serde(rename_all = "snake_case")]
-pub enum ImageSize {
-    Thumb,
-    Small,
-    Large,
-}
-
-#[derive(Deserialize)]
-pub struct Image {
-    pub size: ImageSize,
-    pub url: String,
-}
-
-#[derive(Deserialize)]
-pub struct News {
-    pub id: i64,
-    #[serde(with = "time::serde::rfc3339")]
-    #[serde(rename = "created_at")]
-    pub time_created: OffsetDateTime,
-    #[serde(with = "time::serde::rfc3339")]
-    #[serde(rename = "updated_at")]
-    pub time_updated: OffsetDateTime,
-    #[serde(deserialize_with = "de::add_slash_to_symbols")]
-    pub symbols: Vec<String>,
-    pub headline: String,
-    pub author: String,
-    pub source: String,
-    pub summary: String,
-    pub content: String,
-    pub url: Option<String>,
-    pub images: Vec<Image>,
-}
-
-impl From<News> for types::News {
-    fn from(news: News) -> Self {
-        Self {
-            id: news.id,
-            time_created: news.time_created,
-            time_updated: news.time_updated,
-            symbols: news.symbols,
-            headline: strip(&news.headline),
-            author: strip(&news.author),
-            source: strip(&news.source),
-            summary: news.summary,
-            content: news.content,
-            url: news.url.unwrap_or_default(),
-        }
-    }
-}

src/lib/types/alpaca/api/incoming/order.rs

@@ -1,3 +0,0 @@
-use crate::types::alpaca::shared::order;
-
-pub use order::{Order, Side};

src/lib/types/alpaca/api/incoming/position.rs

@@ -1,61 +0,0 @@
-use crate::{
-    types::alpaca::api::incoming::{
-        asset::{Class, Exchange},
-        order,
-    },
-    utils::de,
-};
-use serde::Deserialize;
-use serde_aux::field_attributes::deserialize_number_from_string;
-use uuid::Uuid;
-
-#[derive(Deserialize, Clone, Copy)]
-#[serde(rename_all = "snake_case")]
-pub enum Side {
-    Long,
-    Short,
-}
-
-impl From<Side> for order::Side {
-    fn from(side: Side) -> Self {
-        match side {
-            Side::Long => Self::Buy,
-            Side::Short => Self::Sell,
-        }
-    }
-}
-
-#[derive(Deserialize, Clone)]
-pub struct Position {
-    pub asset_id: Uuid,
-    #[serde(deserialize_with = "de::add_slash_to_symbol")]
-    pub symbol: String,
-    pub exchange: Exchange,
-    pub asset_class: Class,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub avg_entry_price: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub qty: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub qty_available: f64,
-    pub side: Side,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub market_value: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub cost_basis: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub unrealized_pl: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub unrealized_plpc: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub unrealized_intraday_pl: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub unrealized_intraday_plpc: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub current_price: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub lastday_price: f64,
-    #[serde(deserialize_with = "deserialize_number_from_string")]
-    pub change_today: f64,
-    pub asset_marginable: bool,
-}

src/lib/types/alpaca/api/mod.rs

@@ -1,6 +0,0 @@
-pub mod incoming;
-pub mod outgoing;
-
-pub const ALPACA_US_EQUITY_DATA_API_URL: &str = "https://data.alpaca.markets/v2/stocks/bars";
-pub const ALPACA_CRYPTO_DATA_API_URL: &str = "https://data.alpaca.markets/v1beta3/crypto/us/bars";
-pub const ALPACA_NEWS_DATA_API_URL: &str = "https://data.alpaca.markets/v1beta1/news";

src/lib/types/alpaca/api/outgoing/asset.rs

@@ -1,23 +0,0 @@
-use crate::types::alpaca::shared::asset;
-use serde::Serialize;
-
-pub use asset::{Class, Exchange, Status};
-
-#[derive(Serialize)]
-pub struct Asset {
-    pub status: Option<Status>,
-    pub class: Option<Class>,
-    pub exchange: Option<Exchange>,
-    pub attributes: Option<Vec<String>>,
-}
-
-impl Default for Asset {
-    fn default() -> Self {
-        Self {
-            status: None,
-            class: Some(Class::UsEquity),
-            exchange: None,
-            attributes: None,
-        }
-    }
-}

src/lib/types/alpaca/websocket/mod.rs

@@ -1,8 +0,0 @@
-pub mod auth;
-pub mod data;
-pub mod trading;
-
-pub const ALPACA_US_EQUITY_DATA_WEBSOCKET_URL: &str = "wss://stream.data.alpaca.markets/v2";
-pub const ALPACA_CRYPTO_DATA_WEBSOCKET_URL: &str =
-    "wss://stream.data.alpaca.markets/v1beta3/crypto/us";
-pub const ALPACA_NEWS_DATA_WEBSOCKET_URL: &str = "wss://stream.data.alpaca.markets/v1beta1/news";

src/lib/types/backfill.rs

@@ -1,11 +0,0 @@
-use clickhouse::Row;
-use serde::{Deserialize, Serialize};
-use time::OffsetDateTime;
-
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Row)]
-pub struct Backfill {
-    pub symbol: String,
-    #[serde(with = "clickhouse::serde::time::datetime")]
-    pub time: OffsetDateTime,
-    pub fresh: bool,
-}

src/lib/types/news.rs

@@ -1,19 +0,0 @@
-use clickhouse::Row;
-use serde::{Deserialize, Serialize};
-use time::OffsetDateTime;
-
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Row)]
-pub struct News {
-    pub id: i64,
-    #[serde(with = "clickhouse::serde::time::datetime")]
-    pub time_created: OffsetDateTime,
-    #[serde(with = "clickhouse::serde::time::datetime")]
-    pub time_updated: OffsetDateTime,
-    pub symbols: Vec<String>,
-    pub headline: String,
-    pub author: String,
-    pub source: String,
-    pub summary: String,
-    pub content: String,
-    pub url: String,
-}

src/main.rs

@@ -3,19 +3,16 @@
 #![feature(hash_extract_if)]
 
 mod config;
+mod database;
 mod init;
 mod routes;
 mod threads;
+mod types;
+mod utils;
 
-use config::{
-    Config, ALPACA_API_BASE, ALPACA_MODE, ALPACA_SOURCE, CLICKHOUSE_BATCH_BARS_SIZE,
-    CLICKHOUSE_BATCH_NEWS_SIZE, CLICKHOUSE_MAX_CONNECTIONS,
-};
+use config::Config;
 use dotenv::dotenv;
-use log::info;
 use log4rs::config::Deserializers;
-use nonempty::NonEmpty;
-use qrust::{create_send_await, database};
 use tokio::{join, spawn, sync::mpsc, try_join};
 
 #[tokio::main]
@@ -24,62 +21,18 @@ async fn main() {
     log4rs::init_file("log4rs.yaml", Deserializers::default()).unwrap();
     let config = Config::arc_from_env();
 
-    let _ = *ALPACA_MODE;
-    let _ = *ALPACA_API_BASE;
-    let _ = *ALPACA_SOURCE;
-    let _ = *CLICKHOUSE_BATCH_BARS_SIZE;
-    let _ = *CLICKHOUSE_BATCH_NEWS_SIZE;
-    let _ = *CLICKHOUSE_MAX_CONNECTIONS;
-
-    info!("Marking all assets as stale.");
-
-    let assets = database::assets::select(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .unwrap()
-    .into_iter()
-    .map(|asset| (asset.symbol, asset.class))
-    .collect::<Vec<_>>();
-
-    let symbols = assets.iter().map(|(symbol, _)| symbol).collect::<Vec<_>>();
-
     try_join!(
-        database::backfills_bars::set_fresh_where_symbols(
-            &config.clickhouse_client,
-            &config.clickhouse_concurrency_limiter,
-            false,
-            &symbols
-        ),
-        database::backfills_news::set_fresh_where_symbols(
-            &config.clickhouse_client,
-            &config.clickhouse_concurrency_limiter,
-            false,
-            &symbols
-        )
+        database::backfills_bars::unfresh(&config.clickhouse_client),
+        database::backfills_news::unfresh(&config.clickhouse_client)
     )
     .unwrap();
 
-    info!("Cleaning up database.");
-
-    database::cleanup_all(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .unwrap();
-
-    info!("Optimizing database.");
-
-    database::optimize_all(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .unwrap();
-
-    info!("Rehydrating account data.");
+    database::cleanup_all(&config.clickhouse_client)
+        .await
+        .unwrap();
+    database::optimize_all(&config.clickhouse_client)
+        .await
+        .unwrap();
 
     init::check_account(&config).await;
     join!(
@@ -87,8 +40,6 @@ async fn main() {
         init::rehydrate_positions(&config)
     );
 
-    info!("Starting threads.");
-
     spawn(threads::trading::run(config.clone()));
 
     let (data_sender, data_receiver) = mpsc::channel::<threads::data::Message>(100);
@@ -102,14 +53,19 @@ async fn main() {
 
     spawn(threads::clock::run(config.clone(), clock_sender));
 
-    if let Some(assets) = NonEmpty::from_vec(assets) {
-        create_send_await!(
-            data_sender,
-            threads::data::Message::new,
-            threads::data::Action::Enable,
-            assets
-        );
-    }
+    let assets = database::assets::select(&config.clickhouse_client)
+        .await
+        .unwrap()
+        .into_iter()
+        .map(|asset| (asset.symbol, asset.class))
+        .collect::<Vec<_>>();
+
+    create_send_await!(
+        data_sender,
+        threads::data::Message::new,
+        threads::data::Action::Enable,
+        assets
+    );
 
     routes::run(config, data_sender).await;
 }

src/routes/assets.rs

@@ -1,30 +1,20 @@
 use crate::{
-    config::{Config, ALPACA_API_BASE},
+    config::Config,
     create_send_await, database, threads,
+    types::{alpaca, Asset},
 };
 use axum::{extract::Path, Extension, Json};
 use http::StatusCode;
-use nonempty::{nonempty, NonEmpty};
-use qrust::{
-    alpaca,
-    types::{self, Asset},
-};
-use serde::{Deserialize, Serialize};
-use std::{
-    collections::{HashMap, HashSet},
-    sync::Arc,
-};
+use serde::Deserialize;
+use std::sync::Arc;
 use tokio::sync::mpsc;
 
 pub async fn get(
     Extension(config): Extension<Arc<Config>>,
 ) -> Result<(StatusCode, Json<Vec<Asset>>), StatusCode> {
-    let assets = database::assets::select(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+    let assets = database::assets::select(&config.clickhouse_client)
+        .await
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
 
     Ok((StatusCode::OK, Json(assets)))
 }
@@ -33,13 +23,9 @@ pub async fn get_where_symbol(
     Extension(config): Extension<Arc<Config>>,
     Path(symbol): Path<String>,
 ) -> Result<(StatusCode, Json<Asset>), StatusCode> {
-    let asset = database::assets::select_where_symbol(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-        &symbol,
-    )
-    .await
-    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+    let asset = database::assets::select_where_symbol(&config.clickhouse_client, &symbol)
+        .await
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
 
     asset.map_or(Err(StatusCode::NOT_FOUND), |asset| {
         Ok((StatusCode::OK, Json(asset)))
@@ -47,115 +33,28 @@ pub async fn get_where_symbol(
 }
 
 #[derive(Deserialize)]
-pub struct AddAssetsRequest {
-    symbols: Vec<String>,
-}
-
-#[derive(Serialize)]
-pub struct AddAssetsResponse {
-    added: Vec<String>,
-    skipped: Vec<String>,
-    failed: Vec<String>,
+pub struct AddAssetRequest {
+    symbol: String,
 }
 
 pub async fn add(
     Extension(config): Extension<Arc<Config>>,
     Extension(data_sender): Extension<mpsc::Sender<threads::data::Message>>,
-    Json(request): Json<AddAssetsRequest>,
-) -> Result<(StatusCode, Json<AddAssetsResponse>), StatusCode> {
-    let database_symbols = database::assets::select(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?
-    .into_iter()
-    .map(|asset| asset.symbol)
-    .collect::<HashSet<_>>();
-
-    let mut alpaca_assets = alpaca::assets::get_by_symbols(
-        &config.alpaca_client,
-        &config.alpaca_rate_limiter,
-        &request.symbols,
-        None,
-        &ALPACA_API_BASE,
-    )
-    .await
-    .map_err(|e| {
-        e.status()
-            .map_or(StatusCode::INTERNAL_SERVER_ERROR, |status| {
-                StatusCode::from_u16(status.as_u16()).unwrap()
-            })
-    })?
-    .into_iter()
-    .map(|asset| (asset.symbol.clone(), asset))
-    .collect::<HashMap<_, _>>();
-
-    let num_symbols = request.symbols.len();
-    let (assets, skipped, failed) = request.symbols.into_iter().fold(
-        (Vec::with_capacity(num_symbols), vec![], vec![]),
-        |(mut assets, mut skipped, mut failed), symbol| {
-            if database_symbols.contains(&symbol) {
-                skipped.push(symbol);
-            } else if let Some(asset) = alpaca_assets.remove(&symbol) {
-                if asset.status == types::alpaca::api::incoming::asset::Status::Active
-                    && asset.tradable
-                    && asset.fractionable
-                {
-                    assets.push((asset.symbol, asset.class.into()));
-                } else {
-                    failed.push(asset.symbol);
-                }
-            } else {
-                failed.push(symbol);
-            }
-
-            (assets, skipped, failed)
-        },
-    );
-
-    if let Some(assets) = NonEmpty::from_vec(assets.clone()) {
-        create_send_await!(
-            data_sender,
-            threads::data::Message::new,
-            threads::data::Action::Add,
-            assets
-        );
-    }
-
-    Ok((
-        StatusCode::OK,
-        Json(AddAssetsResponse {
-            added: assets.into_iter().map(|asset| asset.0).collect(),
-            skipped,
-            failed,
-        }),
-    ))
-}
-
-pub async fn add_symbol(
-    Extension(config): Extension<Arc<Config>>,
-    Extension(data_sender): Extension<mpsc::Sender<threads::data::Message>>,
-    Path(symbol): Path<String>,
+    Json(request): Json<AddAssetRequest>,
 ) -> Result<StatusCode, StatusCode> {
-    if database::assets::select_where_symbol(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-        &symbol,
-    )
-    .await
-    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?
-    .is_some()
+    if database::assets::select_where_symbol(&config.clickhouse_client, &request.symbol)
+        .await
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?
+        .is_some()
     {
         return Err(StatusCode::CONFLICT);
     }
 
-    let asset = alpaca::assets::get_by_symbol(
+    let asset = alpaca::api::incoming::asset::get_by_symbol(
         &config.alpaca_client,
         &config.alpaca_rate_limiter,
-        &symbol,
+        &request.symbol,
         None,
-        &ALPACA_API_BASE,
     )
     .await
     .map_err(|e| {
@@ -165,10 +64,7 @@ pub async fn add_symbol(
             })
     })?;
 
-    if asset.status != types::alpaca::api::incoming::asset::Status::Active
-        || !asset.tradable
-        || !asset.fractionable
-    {
+    if !asset.tradable || !asset.fractionable {
         return Err(StatusCode::FORBIDDEN);
     }
 
@@ -176,7 +72,7 @@ pub async fn add_symbol(
         data_sender,
         threads::data::Message::new,
         threads::data::Action::Add,
-        nonempty![(asset.symbol, asset.class.into())]
+        vec![(asset.symbol, asset.class.into())]
     );
 
     Ok(StatusCode::CREATED)
@@ -187,20 +83,16 @@ pub async fn delete(
     Extension(data_sender): Extension<mpsc::Sender<threads::data::Message>>,
     Path(symbol): Path<String>,
 ) -> Result<StatusCode, StatusCode> {
-    let asset = database::assets::select_where_symbol(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-        &symbol,
-    )
-    .await
-    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?
-    .ok_or(StatusCode::NOT_FOUND)?;
+    let asset = database::assets::select_where_symbol(&config.clickhouse_client, &symbol)
+        .await
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?
+        .ok_or(StatusCode::NOT_FOUND)?;
 
     create_send_await!(
         data_sender,
         threads::data::Message::new,
         threads::data::Action::Remove,
-        nonempty![(asset.symbol, asset.class)]
+        vec![(asset.symbol, asset.class)]
     );
 
     Ok(StatusCode::NO_CONTENT)

src/routes/mod.rs

@@ -16,7 +16,6 @@ pub async fn run(config: Arc<Config>, data_sender: mpsc::Sender<threads::data::M
         .route("/assets", get(assets::get))
         .route("/assets/:symbol", get(assets::get_where_symbol))
         .route("/assets", post(assets::add))
-        .route("/assets/:symbol", post(assets::add_symbol))
         .route("/assets/:symbol", delete(assets::delete))
         .layer(Extension(config))
         .layer(Extension(data_sender));

src/threads/clock.rs

@@ -1,13 +1,10 @@
 use crate::{
-    config::{Config, ALPACA_API_BASE},
+    config::Config,
     database,
-};
-use log::info;
-use qrust::{
-    alpaca,
-    types::{self, Calendar},
+    types::{alpaca, Calendar},
     utils::{backoff, duration_until},
 };
+use log::info;
 use std::sync::Arc;
 use time::OffsetDateTime;
 use tokio::{join, sync::mpsc, time::sleep};
@@ -22,8 +19,8 @@ pub struct Message {
     pub next_switch: OffsetDateTime,
 }
 
-impl From<types::alpaca::api::incoming::clock::Clock> for Message {
-    fn from(clock: types::alpaca::api::incoming::clock::Clock) -> Self {
+impl From<alpaca::api::incoming::clock::Clock> for Message {
+    fn from(clock: alpaca::api::incoming::clock::Clock) -> Self {
         if clock.is_open {
             Self {
                 status: Status::Open,
@@ -41,23 +38,21 @@ impl From<types::alpaca::api::incoming::clock::Clock> for Message {
 pub async fn run(config: Arc<Config>, sender: mpsc::Sender<Message>) {
     loop {
         let clock_future = async {
-            alpaca::clock::get(
+            alpaca::api::incoming::clock::get(
                 &config.alpaca_client,
                 &config.alpaca_rate_limiter,
                 Some(backoff::infinite()),
-                &ALPACA_API_BASE,
             )
             .await
             .unwrap()
         };
 
         let calendar_future = async {
-            alpaca::calendar::get(
+            alpaca::api::incoming::calendar::get(
                 &config.alpaca_client,
                 &config.alpaca_rate_limiter,
-                &types::alpaca::api::outgoing::calendar::Calendar::default(),
+                &alpaca::api::outgoing::calendar::Calendar::default(),
                 Some(backoff::infinite()),
-                &ALPACA_API_BASE,
             )
             .await
             .unwrap()
@@ -79,13 +74,9 @@ pub async fn run(config: Arc<Config>, sender: mpsc::Sender<Message>) {
         let sleep_future = sleep(sleep_until);
 
         let calendar_future = async {
-            database::calendar::upsert_batch_and_delete(
-                &config.clickhouse_client,
-                &config.clickhouse_concurrency_limiter,
-                &calendar,
-            )
-            .await
-            .unwrap();
+            database::calendar::upsert_batch_and_delete(&config.clickhouse_client, &calendar)
+                .await
+                .unwrap();
         };
 
         join!(sleep_future, calendar_future);

src/threads/data/backfill.rs

@@ -0,0 +1,413 @@
+use super::ThreadType;
+use crate::{
+    config::{
+        Config, ALPACA_CRYPTO_DATA_API_URL, ALPACA_SOURCE, ALPACA_STOCK_DATA_API_URL,
+        MAX_BERT_INPUTS,
+    },
+    database,
+    types::{
+        alpaca::{self, shared::Source},
+        news::Prediction,
+        Backfill, Bar, Class, News,
+    },
+    utils::{duration_until, last_minute, FIFTEEN_MINUTES, ONE_MINUTE, ONE_SECOND},
+};
+use async_trait::async_trait;
+use futures_util::future::join_all;
+use log::{error, info, warn};
+use std::{collections::HashMap, sync::Arc};
+use time::OffsetDateTime;
+use tokio::{
+    spawn,
+    sync::{mpsc, oneshot, Mutex},
+    task::{block_in_place, JoinHandle},
+    time::sleep,
+    try_join,
+};
+
+pub enum Action {
+    Backfill,
+    Purge,
+}
+
+impl From<super::Action> for Option<Action> {
+    fn from(action: super::Action) -> Self {
+        match action {
+            super::Action::Add | super::Action::Enable => Some(Action::Backfill),
+            super::Action::Remove => Some(Action::Purge),
+            super::Action::Disable => None,
+        }
+    }
+}
+
+pub struct Message {
+    pub action: Option<Action>,
+    pub symbols: Vec<String>,
+    pub response: oneshot::Sender<()>,
+}
+
+impl Message {
+    pub fn new(action: Option<Action>, symbols: Vec<String>) -> (Self, oneshot::Receiver<()>) {
+        let (sender, receiver) = oneshot::channel::<()>();
+        (
+            Self {
+                action,
+                symbols,
+                response: sender,
+            },
+            receiver,
+        )
+    }
+}
+
+#[async_trait]
+pub trait Handler: Send + Sync {
+    async fn select_latest_backfill(
+        &self,
+        symbol: String,
+    ) -> Result<Option<Backfill>, clickhouse::error::Error>;
+    async fn delete_backfills(&self, symbol: &[String]) -> Result<(), clickhouse::error::Error>;
+    async fn delete_data(&self, symbol: &[String]) -> Result<(), clickhouse::error::Error>;
+    async fn queue_backfill(&self, symbol: &str, fetch_to: OffsetDateTime);
+    async fn backfill(&self, symbol: String, fetch_from: OffsetDateTime, fetch_to: OffsetDateTime);
+    fn log_string(&self) -> &'static str;
+}
+
+pub async fn run(handler: Arc<Box<dyn Handler>>, mut receiver: mpsc::Receiver<Message>) {
+    let backfill_jobs = Arc::new(Mutex::new(HashMap::new()));
+
+    loop {
+        let message = receiver.recv().await.unwrap();
+        spawn(handle_backfill_message(
+            handler.clone(),
+            backfill_jobs.clone(),
+            message,
+        ));
+    }
+}
+
+async fn handle_backfill_message(
+    handler: Arc<Box<dyn Handler>>,
+    backfill_jobs: Arc<Mutex<HashMap<String, JoinHandle<()>>>>,
+    message: Message,
+) {
+    let mut backfill_jobs = backfill_jobs.lock().await;
+
+    match message.action {
+        Some(Action::Backfill) => {
+            let log_string = handler.log_string();
+
+            for symbol in message.symbols {
+                if let Some(job) = backfill_jobs.get(&symbol) {
+                    if !job.is_finished() {
+                        warn!(
+                            "Backfill for {} {} is already running, skipping.",
+                            symbol, log_string
+                        );
+                        continue;
+                    }
+                }
+
+                let handler = handler.clone();
+                backfill_jobs.insert(
+                    symbol.clone(),
+                    spawn(async move {
+                        let fetch_from = match handler
+                            .select_latest_backfill(symbol.clone())
+                            .await
+                            .unwrap()
+                        {
+                            Some(latest_backfill) => latest_backfill.time + ONE_SECOND,
+                            None => OffsetDateTime::UNIX_EPOCH,
+                        };
+
+                        let fetch_to = last_minute();
+
+                        if fetch_from > fetch_to {
+                            info!("No need to backfill {} {}.", symbol, log_string,);
+                            return;
+                        }
+
+                        handler.queue_backfill(&symbol, fetch_to).await;
+                        handler.backfill(symbol, fetch_from, fetch_to).await;
+                    }),
+                );
+            }
+        }
+        Some(Action::Purge) => {
+            for symbol in &message.symbols {
+                if let Some(job) = backfill_jobs.remove(symbol) {
+                    if !job.is_finished() {
+                        job.abort();
+                    }
+                    let _ = job.await;
+                }
+            }
+
+            try_join!(
+                handler.delete_backfills(&message.symbols),
+                handler.delete_data(&message.symbols)
+            )
+            .unwrap();
+        }
+        None => {}
+    }
+
+    message.response.send(()).unwrap();
+}
+
+struct BarHandler {
+    config: Arc<Config>,
+    data_url: &'static str,
+    api_query_constructor: fn(
+        symbol: String,
+        fetch_from: OffsetDateTime,
+        fetch_to: OffsetDateTime,
+        next_page_token: Option<String>,
+    ) -> alpaca::api::outgoing::bar::Bar,
+}
+
+fn us_equity_query_constructor(
+    symbol: String,
+    fetch_from: OffsetDateTime,
+    fetch_to: OffsetDateTime,
+    next_page_token: Option<String>,
+) -> alpaca::api::outgoing::bar::Bar {
+    alpaca::api::outgoing::bar::Bar::UsEquity(alpaca::api::outgoing::bar::UsEquity {
+        symbols: vec![symbol],
+        start: Some(fetch_from),
+        end: Some(fetch_to),
+        page_token: next_page_token,
+        ..Default::default()
+    })
+}
+
+fn crypto_query_constructor(
+    symbol: String,
+    fetch_from: OffsetDateTime,
+    fetch_to: OffsetDateTime,
+    next_page_token: Option<String>,
+) -> alpaca::api::outgoing::bar::Bar {
+    alpaca::api::outgoing::bar::Bar::Crypto(alpaca::api::outgoing::bar::Crypto {
+        symbols: vec![symbol],
+        start: Some(fetch_from),
+        end: Some(fetch_to),
+        page_token: next_page_token,
+        ..Default::default()
+    })
+}
+
+#[async_trait]
+impl Handler for BarHandler {
+    async fn select_latest_backfill(
+        &self,
+        symbol: String,
+    ) -> Result<Option<Backfill>, clickhouse::error::Error> {
+        database::backfills_bars::select_where_symbol(&self.config.clickhouse_client, &symbol).await
+    }
+
+    async fn delete_backfills(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
+        database::backfills_bars::delete_where_symbols(&self.config.clickhouse_client, symbols)
+            .await
+    }
+
+    async fn delete_data(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
+        database::bars::delete_where_symbols(&self.config.clickhouse_client, symbols).await
+    }
+
+    async fn queue_backfill(&self, symbol: &str, fetch_to: OffsetDateTime) {
+        if *ALPACA_SOURCE == Source::Iex {
+            let run_delay = duration_until(fetch_to + FIFTEEN_MINUTES + ONE_MINUTE);
+            info!("Queing bar backfill for {} in {:?}.", symbol, run_delay);
+            sleep(run_delay).await;
+        }
+    }
+
+    async fn backfill(&self, symbol: String, fetch_from: OffsetDateTime, fetch_to: OffsetDateTime) {
+        info!("Backfilling bars for {}.", symbol);
+
+        let mut bars = vec![];
+        let mut next_page_token = None;
+
+        loop {
+            let Ok(message) = alpaca::api::incoming::bar::get_historical(
+                &self.config.alpaca_client,
+                &self.config.alpaca_rate_limiter,
+                self.data_url,
+                &(self.api_query_constructor)(
+                    symbol.clone(),
+                    fetch_from,
+                    fetch_to,
+                    next_page_token.clone(),
+                ),
+                None,
+            )
+            .await
+            else {
+                error!("Failed to backfill bars for {}.", symbol);
+                return;
+            };
+
+            message.bars.into_iter().for_each(|(symbol, bar_vec)| {
+                for bar in bar_vec {
+                    bars.push(Bar::from((bar, symbol.clone())));
+                }
+            });
+
+            if message.next_page_token.is_none() {
+                break;
+            }
+            next_page_token = message.next_page_token;
+        }
+
+        if bars.is_empty() {
+            info!("No bars to backfill for {}.", symbol);
+            return;
+        }
+
+        let backfill = bars.last().unwrap().clone().into();
+
+        database::bars::upsert_batch(&self.config.clickhouse_client, &bars)
+            .await
+            .unwrap();
+        database::backfills_bars::upsert(&self.config.clickhouse_client, &backfill)
+            .await
+            .unwrap();
+
+        info!("Backfilled bars for {}.", symbol);
+    }
+
+    fn log_string(&self) -> &'static str {
+        "bars"
+    }
+}
+
+struct NewsHandler {
+    config: Arc<Config>,
+}
+
+#[async_trait]
+impl Handler for NewsHandler {
+    async fn select_latest_backfill(
+        &self,
+        symbol: String,
+    ) -> Result<Option<Backfill>, clickhouse::error::Error> {
+        database::backfills_news::select_where_symbol(&self.config.clickhouse_client, &symbol).await
+    }
+
+    async fn delete_backfills(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
+        database::backfills_news::delete_where_symbols(&self.config.clickhouse_client, symbols)
+            .await
+    }
+
+    async fn delete_data(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
+        database::news::delete_where_symbols(&self.config.clickhouse_client, symbols).await
+    }
+
+    async fn queue_backfill(&self, symbol: &str, fetch_to: OffsetDateTime) {
+        let run_delay = duration_until(fetch_to + FIFTEEN_MINUTES + ONE_MINUTE);
+        info!("Queing news backfill for {} in {:?}.", symbol, run_delay);
+        sleep(run_delay).await;
+    }
+
+    async fn backfill(&self, symbol: String, fetch_from: OffsetDateTime, fetch_to: OffsetDateTime) {
+        info!("Backfilling news for {}.", symbol);
+
+        let mut news = vec![];
+        let mut next_page_token = None;
+
+        loop {
+            let Ok(message) = alpaca::api::incoming::news::get_historical(
+                &self.config.alpaca_client,
+                &self.config.alpaca_rate_limiter,
+                &alpaca::api::outgoing::news::News {
+                    symbols: vec![symbol.clone()],
+                    start: Some(fetch_from),
+                    end: Some(fetch_to),
+                    page_token: next_page_token.clone(),
+                    ..Default::default()
+                },
+                None,
+            )
+            .await
+            else {
+                error!("Failed to backfill news for {}.", symbol);
+                return;
+            };
+
+            message.news.into_iter().for_each(|news_item| {
+                news.push(News::from(news_item));
+            });
+
+            if message.next_page_token.is_none() {
+                break;
+            }
+            next_page_token = message.next_page_token;
+        }
+
+        if news.is_empty() {
+            info!("No news to backfill for {}.", symbol);
+            return;
+        }
+
+        let inputs = news
+            .iter()
+            .map(|news| format!("{}\n\n{}", news.headline, news.content))
+            .collect::<Vec<_>>();
+
+        let predictions = join_all(inputs.chunks(*MAX_BERT_INPUTS).map(|inputs| async move {
+            let sequence_classifier = self.config.sequence_classifier.lock().await;
+            block_in_place(|| {
+                sequence_classifier
+                    .predict(inputs.iter().map(String::as_str).collect::<Vec<_>>())
+                    .into_iter()
+                    .map(|label| Prediction::try_from(label).unwrap())
+                    .collect::<Vec<_>>()
+            })
+        }))
+        .await
+        .into_iter()
+        .flatten();
+
+        let news = news
+            .into_iter()
+            .zip(predictions)
+            .map(|(news, prediction)| News {
+                sentiment: prediction.sentiment,
+                confidence: prediction.confidence,
+                ..news
+            })
+            .collect::<Vec<_>>();
+
+        let backfill = (news.last().unwrap().clone(), symbol.clone()).into();
+
+        database::news::upsert_batch(&self.config.clickhouse_client, &news)
+            .await
+            .unwrap();
+        database::backfills_news::upsert(&self.config.clickhouse_client, &backfill)
+            .await
+            .unwrap();
+
+        info!("Backfilled news for {}.", symbol);
+    }
+
+    fn log_string(&self) -> &'static str {
+        "news"
+    }
+}
+
+pub fn create_handler(thread_type: ThreadType, config: Arc<Config>) -> Box<dyn Handler> {
+    match thread_type {
+        ThreadType::Bars(Class::UsEquity) => Box::new(BarHandler {
+            config,
+            data_url: ALPACA_STOCK_DATA_API_URL,
+            api_query_constructor: us_equity_query_constructor,
+        }),
+        ThreadType::Bars(Class::Crypto) => Box::new(BarHandler {
+            config,
+            data_url: ALPACA_CRYPTO_DATA_API_URL,
+            api_query_constructor: crypto_query_constructor,
+        }),
+        ThreadType::News => Box::new(NewsHandler { config }),
+    }
+}

src/threads/data/backfill/bars.rs

@@ -1,238 +0,0 @@
-use super::Job;
-use crate::{
-    config::{Config, ALPACA_SOURCE, CLICKHOUSE_BATCH_BARS_SIZE},
-    database,
-    threads::data::ThreadType,
-};
-use async_trait::async_trait;
-use log::{error, info};
-use nonempty::NonEmpty;
-use qrust::{
-    alpaca,
-    types::{
-        self,
-        alpaca::{
-            api::{ALPACA_CRYPTO_DATA_API_URL, ALPACA_US_EQUITY_DATA_API_URL},
-            shared::{Sort, Source},
-        },
-        Backfill, Bar, Class,
-    },
-    utils::{duration_until, FIFTEEN_MINUTES, ONE_MINUTE},
-};
-use std::{collections::HashMap, sync::Arc};
-use time::OffsetDateTime;
-use tokio::time::sleep;
-
-pub struct Handler {
-    pub config: Arc<Config>,
-    pub data_url: &'static str,
-    pub api_query_constructor: fn(
-        symbols: Vec<String>,
-        fetch_from: OffsetDateTime,
-        fetch_to: OffsetDateTime,
-        next_page_token: Option<String>,
-    ) -> types::alpaca::api::outgoing::bar::Bar,
-}
-
-pub fn us_equity_query_constructor(
-    symbols: Vec<String>,
-    fetch_from: OffsetDateTime,
-    fetch_to: OffsetDateTime,
-    next_page_token: Option<String>,
-) -> types::alpaca::api::outgoing::bar::Bar {
-    types::alpaca::api::outgoing::bar::Bar::UsEquity(types::alpaca::api::outgoing::bar::UsEquity {
-        symbols,
-        start: Some(fetch_from),
-        end: Some(fetch_to),
-        page_token: next_page_token,
-        sort: Some(Sort::Asc),
-        feed: Some(*ALPACA_SOURCE),
-        ..Default::default()
-    })
-}
-
-pub fn crypto_query_constructor(
-    symbols: Vec<String>,
-    fetch_from: OffsetDateTime,
-    fetch_to: OffsetDateTime,
-    next_page_token: Option<String>,
-) -> types::alpaca::api::outgoing::bar::Bar {
-    types::alpaca::api::outgoing::bar::Bar::Crypto(types::alpaca::api::outgoing::bar::Crypto {
-        symbols,
-        start: Some(fetch_from),
-        end: Some(fetch_to),
-        page_token: next_page_token,
-        sort: Some(Sort::Asc),
-        ..Default::default()
-    })
-}
-
-#[async_trait]
-impl super::Handler for Handler {
-    async fn select_latest_backfills(
-        &self,
-        symbols: &[String],
-    ) -> Result<Vec<Backfill>, clickhouse::error::Error> {
-        database::backfills_bars::select_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            symbols,
-        )
-        .await
-    }
-
-    async fn delete_backfills(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
-        database::backfills_bars::delete_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            symbols,
-        )
-        .await
-    }
-
-    async fn delete_data(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
-        database::bars::delete_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            symbols,
-        )
-        .await
-    }
-
-    async fn queue_backfill(&self, jobs: &NonEmpty<Job>) {
-        if *ALPACA_SOURCE == Source::Sip {
-            return;
-        }
-
-        let fetch_to = jobs.maximum_by_key(|job| job.fetch_to).fetch_to;
-        let run_delay = duration_until(fetch_to + FIFTEEN_MINUTES + ONE_MINUTE);
-        let symbols = jobs.iter().map(|job| &job.symbol).collect::<Vec<_>>();
-
-        info!("Queing bar backfill for {:?} in {:?}.", symbols, run_delay);
-        sleep(run_delay).await;
-    }
-
-    async fn backfill(&self, jobs: NonEmpty<Job>) {
-        let symbols = Vec::from(jobs.clone().map(|job| job.symbol));
-        let fetch_from = jobs.minimum_by_key(|job| job.fetch_from).fetch_from;
-        let fetch_to = jobs.maximum_by_key(|job| job.fetch_to).fetch_to;
-        let freshness = jobs
-            .into_iter()
-            .map(|job| (job.symbol, job.fresh))
-            .collect::<HashMap<_, _>>();
-
-        let mut bars = Vec::with_capacity(*CLICKHOUSE_BATCH_BARS_SIZE);
-        let mut last_times = HashMap::new();
-        let mut next_page_token = None;
-
-        info!("Backfilling bars for {:?}.", symbols);
-
-        loop {
-            let message = alpaca::bars::get(
-                &self.config.alpaca_client,
-                &self.config.alpaca_rate_limiter,
-                self.data_url,
-                &(self.api_query_constructor)(
-                    symbols.clone(),
-                    fetch_from,
-                    fetch_to,
-                    next_page_token.clone(),
-                ),
-                None,
-            )
-            .await;
-
-            if let Err(err) = message {
-                error!("Failed to backfill bars for {:?}: {:?}.", symbols, err);
-                return;
-            }
-
-            let message = message.unwrap();
-
-            for (symbol, bars_vec) in message.bars {
-                if let Some(last) = bars_vec.last() {
-                    last_times.insert(symbol.clone(), last.time);
-                }
-
-                for bar in bars_vec {
-                    bars.push(Bar::from((bar, symbol.clone())));
-                }
-            }
-
-            if bars.len() < *CLICKHOUSE_BATCH_BARS_SIZE && message.next_page_token.is_some() {
-                continue;
-            }
-
-            database::bars::upsert_batch(
-                &self.config.clickhouse_client,
-                &self.config.clickhouse_concurrency_limiter,
-                &bars,
-            )
-            .await
-            .unwrap();
-
-            let backfilled = last_times
-                .drain()
-                .map(|(symbol, time)| Backfill {
-                    fresh: freshness[&symbol],
-                    symbol,
-                    time,
-                })
-                .collect::<Vec<_>>();
-
-            database::backfills_bars::upsert_batch(
-                &self.config.clickhouse_client,
-                &self.config.clickhouse_concurrency_limiter,
-                &backfilled,
-            )
-            .await
-            .unwrap();
-
-            if message.next_page_token.is_none() {
-                break;
-            }
-
-            next_page_token = message.next_page_token;
-            bars.clear();
-        }
-
-        database::backfills_bars::set_fresh_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            true,
-            &symbols,
-        )
-        .await
-        .unwrap();
-
-        info!("Backfilled bars for {:?}.", symbols);
-    }
-
-    fn max_limit(&self) -> i64 {
-        alpaca::bars::MAX_LIMIT
-    }
-
-    fn log_string(&self) -> &'static str {
-        "bars"
-    }
-}
-
-pub fn create_handler(config: Arc<Config>, thread_type: ThreadType) -> Box<dyn super::Handler> {
-    let data_url = match thread_type {
-        ThreadType::Bars(Class::UsEquity) => ALPACA_US_EQUITY_DATA_API_URL,
-        ThreadType::Bars(Class::Crypto) => ALPACA_CRYPTO_DATA_API_URL,
-        _ => unreachable!(),
-    };
-
-    let api_query_constructor = match thread_type {
-        ThreadType::Bars(Class::UsEquity) => us_equity_query_constructor,
-        ThreadType::Bars(Class::Crypto) => crypto_query_constructor,
-        _ => unreachable!(),
-    };
-
-    Box::new(Handler {
-        config,
-        data_url,
-        api_query_constructor,
-    })
-}

src/threads/data/backfill/mod.rs

@@ -1,244 +0,0 @@
-pub mod bars;
-pub mod news;
-
-use async_trait::async_trait;
-use itertools::Itertools;
-use log::{info, warn};
-use nonempty::{nonempty, NonEmpty};
-use qrust::{
-    types::Backfill,
-    utils::{last_minute, ONE_SECOND},
-};
-use std::{collections::HashMap, hash::Hash, sync::Arc};
-use time::OffsetDateTime;
-use tokio::{
-    spawn,
-    sync::{mpsc, oneshot, Mutex},
-    task::JoinHandle,
-    try_join,
-};
-use uuid::Uuid;
-
-pub enum Action {
-    Backfill,
-    Purge,
-}
-
-pub struct Message {
-    pub action: Action,
-    pub symbols: NonEmpty<String>,
-    pub response: oneshot::Sender<()>,
-}
-
-impl Message {
-    pub fn new(action: Action, symbols: NonEmpty<String>) -> (Self, oneshot::Receiver<()>) {
-        let (sender, receiver) = oneshot::channel::<()>();
-        (
-            Self {
-                action,
-                symbols,
-                response: sender,
-            },
-            receiver,
-        )
-    }
-}
-
-#[derive(Clone)]
-pub struct Job {
-    pub symbol: String,
-    pub fetch_from: OffsetDateTime,
-    pub fetch_to: OffsetDateTime,
-    pub fresh: bool,
-}
-
-#[async_trait]
-pub trait Handler: Send + Sync {
-    async fn select_latest_backfills(
-        &self,
-        symbols: &[String],
-    ) -> Result<Vec<Backfill>, clickhouse::error::Error>;
-    async fn delete_backfills(&self, symbol: &[String]) -> Result<(), clickhouse::error::Error>;
-    async fn delete_data(&self, symbol: &[String]) -> Result<(), clickhouse::error::Error>;
-    async fn queue_backfill(&self, jobs: &NonEmpty<Job>);
-    async fn backfill(&self, jobs: NonEmpty<Job>);
-    fn max_limit(&self) -> i64;
-    fn log_string(&self) -> &'static str;
-}
-
-pub struct Jobs {
-    pub symbol_to_uuid: HashMap<String, Uuid>,
-    pub uuid_to_job: HashMap<Uuid, JoinHandle<()>>,
-}
-
-impl Jobs {
-    pub fn insert(&mut self, jobs: Vec<String>, fut: JoinHandle<()>) {
-        let uuid = Uuid::new_v4();
-        for symbol in jobs {
-            self.symbol_to_uuid.insert(symbol.clone(), uuid);
-        }
-        self.uuid_to_job.insert(uuid, fut);
-    }
-
-    pub fn contains_key(&self, symbol: &str) -> bool {
-        self.symbol_to_uuid.contains_key(symbol)
-    }
-
-    pub fn remove(&mut self, symbol: &str) -> Option<JoinHandle<()>> {
-        self.symbol_to_uuid
-            .remove(symbol)
-            .and_then(|uuid| self.uuid_to_job.remove(&uuid))
-    }
-
-    pub fn remove_many<T>(&mut self, symbols: &[T])
-    where
-        T: AsRef<str> + Hash + Eq,
-    {
-        for symbol in symbols {
-            self.symbol_to_uuid
-                .remove(symbol.as_ref())
-                .and_then(|uuid| self.uuid_to_job.remove(&uuid));
-        }
-    }
-
-    pub fn len(&self) -> usize {
-        self.symbol_to_uuid.len()
-    }
-}
-
-pub async fn run(handler: Arc<Box<dyn Handler>>, mut receiver: mpsc::Receiver<Message>) {
-    let backfill_jobs = Arc::new(Mutex::new(Jobs {
-        symbol_to_uuid: HashMap::new(),
-        uuid_to_job: HashMap::new(),
-    }));
-
-    loop {
-        let message = receiver.recv().await.unwrap();
-        spawn(handle_message(
-            handler.clone(),
-            backfill_jobs.clone(),
-            message,
-        ));
-    }
-}
-
-async fn handle_message(
-    handler: Arc<Box<dyn Handler>>,
-    backfill_jobs: Arc<Mutex<Jobs>>,
-    message: Message,
-) {
-    let backfill_jobs_clone = backfill_jobs.clone();
-    let mut backfill_jobs = backfill_jobs.lock().await;
-    let symbols = Vec::from(message.symbols);
-
-    match message.action {
-        Action::Backfill => {
-            let log_string = handler.log_string();
-            let max_limit = handler.max_limit();
-
-            let backfills = handler
-                .select_latest_backfills(&symbols)
-                .await
-                .unwrap()
-                .into_iter()
-                .map(|backfill| (backfill.symbol.clone(), backfill))
-                .collect::<HashMap<_, _>>();
-
-            let mut jobs = Vec::with_capacity(symbols.len());
-
-            for symbol in symbols {
-                if backfill_jobs.contains_key(&symbol) {
-                    warn!(
-                        "Backfill for {} {} is already running, skipping.",
-                        symbol, log_string
-                    );
-                    continue;
-                }
-
-                let backfill = backfills.get(&symbol);
-
-                let fetch_from = backfill.map_or(OffsetDateTime::UNIX_EPOCH, |backfill| {
-                    backfill.time + ONE_SECOND
-                });
-
-                let fetch_to = last_minute();
-
-                if fetch_from > fetch_to {
-                    info!("No need to backfill {} {}.", symbol, log_string,);
-                    return;
-                }
-
-                let fresh = backfill.map_or(false, |backfill| backfill.fresh);
-
-                jobs.push(Job {
-                    symbol,
-                    fetch_from,
-                    fetch_to,
-                    fresh,
-                });
-            }
-
-            let jobs = jobs
-                .into_iter()
-                .sorted_unstable_by_key(|job| job.fetch_from)
-                .collect::<Vec<_>>();
-
-            let mut job_groups: Vec<NonEmpty<Job>> = vec![];
-            let mut current_minutes = 0;
-
-            for job in jobs {
-                let minutes = (job.fetch_to - job.fetch_from).whole_minutes();
-
-                if job_groups.last().is_some() && current_minutes + minutes <= max_limit {
-                    let job_group = job_groups.last_mut().unwrap();
-                    job_group.push(job);
-                    current_minutes += minutes;
-                } else {
-                    job_groups.push(nonempty![job]);
-                    current_minutes = minutes;
-                }
-            }
-
-            for job_group in job_groups {
-                let symbols = job_group
-                    .iter()
-                    .map(|job| job.symbol.clone())
-                    .collect::<Vec<_>>();
-
-                let handler = handler.clone();
-                let symbols_clone = symbols.clone();
-                let backfill_jobs_clone = backfill_jobs_clone.clone();
-
-                let fut = spawn(async move {
-                    handler.queue_backfill(&job_group).await;
-                    handler.backfill(job_group).await;
-
-                    let mut backfill_jobs = backfill_jobs_clone.lock().await;
-                    backfill_jobs.remove_many(&symbols_clone);
-                    let remaining = backfill_jobs.len();
-                    drop(backfill_jobs);
-
-                    info!("{} {} backfills remaining.", remaining, log_string);
-                });
-
-                backfill_jobs.insert(symbols, fut);
-            }
-        }
-        Action::Purge => {
-            for symbol in &symbols {
-                if let Some(job) = backfill_jobs.remove(symbol) {
-                    job.abort();
-                    let _ = job.await;
-                }
-            }
-
-            try_join!(
-                handler.delete_backfills(&symbols),
-                handler.delete_data(&symbols)
-            )
-            .unwrap();
-        }
-    }
-
-    message.response.send(()).unwrap();
-}

src/threads/data/backfill/news.rs

@@ -1,186 +0,0 @@
-use super::Job;
-use crate::{
-    config::{Config, ALPACA_SOURCE, CLICKHOUSE_BATCH_NEWS_SIZE},
-    database,
-};
-use async_trait::async_trait;
-use log::{error, info};
-use nonempty::NonEmpty;
-use qrust::{
-    alpaca,
-    types::{
-        self,
-        alpaca::shared::{Sort, Source},
-        Backfill, News,
-    },
-    utils::{duration_until, FIFTEEN_MINUTES, ONE_MINUTE},
-};
-use std::{
-    collections::{HashMap, HashSet},
-    sync::Arc,
-};
-use tokio::time::sleep;
-
-pub struct Handler {
-    pub config: Arc<Config>,
-}
-
-#[async_trait]
-impl super::Handler for Handler {
-    async fn select_latest_backfills(
-        &self,
-        symbols: &[String],
-    ) -> Result<Vec<Backfill>, clickhouse::error::Error> {
-        database::backfills_news::select_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            symbols,
-        )
-        .await
-    }
-
-    async fn delete_backfills(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
-        database::backfills_news::delete_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            symbols,
-        )
-        .await
-    }
-
-    async fn delete_data(&self, symbols: &[String]) -> Result<(), clickhouse::error::Error> {
-        database::news::delete_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            symbols,
-        )
-        .await
-    }
-
-    async fn queue_backfill(&self, jobs: &NonEmpty<Job>) {
-        if *ALPACA_SOURCE == Source::Sip {
-            return;
-        }
-
-        let fetch_to = jobs.maximum_by_key(|job| job.fetch_to).fetch_to;
-        let run_delay = duration_until(fetch_to + FIFTEEN_MINUTES + ONE_MINUTE);
-        let symbols = jobs.iter().map(|job| &job.symbol).collect::<Vec<_>>();
-
-        info!("Queing news backfill for {:?} in {:?}.", symbols, run_delay);
-        sleep(run_delay).await;
-    }
-
-    #[allow(clippy::too_many_lines)]
-    #[allow(clippy::iter_with_drain)]
-    async fn backfill(&self, jobs: NonEmpty<Job>) {
-        let symbols = Vec::from(jobs.clone().map(|job| job.symbol));
-        let symbols_set = symbols.clone().into_iter().collect::<HashSet<_>>();
-        let fetch_from = jobs.minimum_by_key(|job| job.fetch_from).fetch_from;
-        let fetch_to = jobs.maximum_by_key(|job| job.fetch_to).fetch_to;
-        let freshness = jobs
-            .into_iter()
-            .map(|job| (job.symbol, job.fresh))
-            .collect::<HashMap<_, _>>();
-
-        let mut news = Vec::with_capacity(*CLICKHOUSE_BATCH_NEWS_SIZE);
-        let mut last_times = HashMap::new();
-        let mut next_page_token = None;
-
-        info!("Backfilling news for {:?}.", symbols);
-
-        loop {
-            let message = alpaca::news::get(
-                &self.config.alpaca_client,
-                &self.config.alpaca_rate_limiter,
-                &types::alpaca::api::outgoing::news::News {
-                    symbols: symbols.clone(),
-                    start: Some(fetch_from),
-                    end: Some(fetch_to),
-                    page_token: next_page_token.clone(),
-                    sort: Some(Sort::Asc),
-                    ..Default::default()
-                },
-                None,
-            )
-            .await;
-
-            if let Err(err) = message {
-                error!("Failed to backfill news for {:?}: {:?}.", symbols, err);
-                return;
-            }
-
-            let message = message.unwrap();
-
-            for news_item in message.news {
-                let news_item = News::from(news_item);
-
-                for symbol in &news_item.symbols {
-                    if symbols_set.contains(symbol) {
-                        last_times.insert(symbol.clone(), news_item.time_created);
-                    }
-                }
-
-                news.push(news_item);
-            }
-
-            if news.len() < *CLICKHOUSE_BATCH_NEWS_SIZE && message.next_page_token.is_some() {
-                continue;
-            }
-
-            database::news::upsert_batch(
-                &self.config.clickhouse_client,
-                &self.config.clickhouse_concurrency_limiter,
-                &news,
-            )
-            .await
-            .unwrap();
-
-            let backfilled = last_times
-                .drain()
-                .map(|(symbol, time)| Backfill {
-                    fresh: freshness[&symbol],
-                    symbol,
-                    time,
-                })
-                .collect::<Vec<_>>();
-
-            database::backfills_news::upsert_batch(
-                &self.config.clickhouse_client,
-                &self.config.clickhouse_concurrency_limiter,
-                &backfilled,
-            )
-            .await
-            .unwrap();
-
-            if message.next_page_token.is_none() {
-                break;
-            }
-
-            next_page_token = message.next_page_token;
-            news.clear();
-        }
-
-        database::backfills_news::set_fresh_where_symbols(
-            &self.config.clickhouse_client,
-            &self.config.clickhouse_concurrency_limiter,
-            true,
-            &symbols,
-        )
-        .await
-        .unwrap();
-
-        info!("Backfilled news for {:?}.", symbols);
-    }
-
-    fn max_limit(&self) -> i64 {
-        alpaca::news::MAX_LIMIT
-    }
-
-    fn log_string(&self) -> &'static str {
-        "news"
-    }
-}
-
-pub fn create_handler(config: Arc<Config>) -> Box<dyn super::Handler> {
-    Box::new(Handler { config })
-}

src/threads/data/mod.rs

@@ -3,29 +3,24 @@ mod websocket;
 
 use super::clock;
 use crate::{
-    config::{Config, ALPACA_API_BASE, ALPACA_SOURCE},
-    create_send_await, database,
-};
-use itertools::{Either, Itertools};
-use log::error;
-use nonempty::NonEmpty;
-use qrust::{
-    alpaca,
-    types::{
-        alpaca::websocket::{
-            ALPACA_CRYPTO_DATA_WEBSOCKET_URL, ALPACA_NEWS_DATA_WEBSOCKET_URL,
-            ALPACA_US_EQUITY_DATA_WEBSOCKET_URL,
-        },
-        Asset, Class,
+    config::{
+        Config, ALPACA_CRYPTO_DATA_WEBSOCKET_URL, ALPACA_NEWS_DATA_WEBSOCKET_URL, ALPACA_SOURCE,
+        ALPACA_STOCK_DATA_WEBSOCKET_URL,
     },
+    create_send_await, database,
+    types::{alpaca, Asset, Class},
+    utils::backoff,
 };
-use std::{collections::HashMap, sync::Arc};
+use futures_util::{future::join_all, StreamExt};
+use itertools::{Either, Itertools};
+use std::sync::Arc;
 use tokio::{
     join, select, spawn,
     sync::{mpsc, oneshot},
 };
+use tokio_tungstenite::connect_async;
 
-#[derive(Clone, Copy, PartialEq, Eq)]
+#[derive(Clone, Copy)]
 #[allow(dead_code)]
 pub enum Action {
     Add,
@@ -36,12 +31,12 @@ pub enum Action {
 
 pub struct Message {
     pub action: Action,
-    pub assets: NonEmpty<(String, Class)>,
+    pub assets: Vec<(String, Class)>,
     pub response: oneshot::Sender<()>,
 }
 
 impl Message {
-    pub fn new(action: Action, assets: NonEmpty<(String, Class)>) -> (Self, oneshot::Receiver<()>) {
+    pub fn new(action: Action, assets: Vec<(String, Class)>) -> (Self, oneshot::Receiver<()>) {
         let (sender, receiver) = oneshot::channel();
         (
             Self {
@@ -66,11 +61,11 @@ pub async fn run(
     mut clock_receiver: mpsc::Receiver<clock::Message>,
 ) {
     let (bars_us_equity_websocket_sender, bars_us_equity_backfill_sender) =
-        init_thread(config.clone(), ThreadType::Bars(Class::UsEquity));
+        init_thread(config.clone(), ThreadType::Bars(Class::UsEquity)).await;
     let (bars_crypto_websocket_sender, bars_crypto_backfill_sender) =
-        init_thread(config.clone(), ThreadType::Bars(Class::Crypto));
+        init_thread(config.clone(), ThreadType::Bars(Class::Crypto)).await;
     let (news_websocket_sender, news_backfill_sender) =
-        init_thread(config.clone(), ThreadType::News);
+        init_thread(config.clone(), ThreadType::News).await;
 
     loop {
         select! {
@@ -99,7 +94,7 @@ pub async fn run(
     }
 }
 
-fn init_thread(
+async fn init_thread(
     config: Arc<Config>,
     thread_type: ThreadType,
 ) -> (
@@ -108,32 +103,28 @@ fn init_thread(
 ) {
     let websocket_url = match thread_type {
         ThreadType::Bars(Class::UsEquity) => {
-            format!("{}/{}", ALPACA_US_EQUITY_DATA_WEBSOCKET_URL, *ALPACA_SOURCE)
+            format!("{}/{}", ALPACA_STOCK_DATA_WEBSOCKET_URL, *ALPACA_SOURCE)
         }
         ThreadType::Bars(Class::Crypto) => ALPACA_CRYPTO_DATA_WEBSOCKET_URL.into(),
         ThreadType::News => ALPACA_NEWS_DATA_WEBSOCKET_URL.into(),
     };
 
-    let backfill_handler = match thread_type {
-        ThreadType::Bars(_) => backfill::bars::create_handler(config.clone(), thread_type),
-        ThreadType::News => backfill::news::create_handler(config.clone()),
-    };
+    let (websocket, _) = connect_async(websocket_url).await.unwrap();
+    let (mut websocket_sink, mut websocket_stream) = websocket.split();
+    alpaca::websocket::data::authenticate(&mut websocket_sink, &mut websocket_stream).await;
 
     let (backfill_sender, backfill_receiver) = mpsc::channel(100);
-
-    spawn(backfill::run(backfill_handler.into(), backfill_receiver));
-
-    let websocket_handler = match thread_type {
-        ThreadType::Bars(_) => websocket::bars::create_handler(config, thread_type),
-        ThreadType::News => websocket::news::create_handler(config),
-    };
+    spawn(backfill::run(
+        Arc::new(backfill::create_handler(thread_type, config.clone())),
+        backfill_receiver,
+    ));
 
     let (websocket_sender, websocket_receiver) = mpsc::channel(100);
-
     spawn(websocket::run(
-        websocket_handler.into(),
+        Arc::new(websocket::create_handler(thread_type, config.clone())),
         websocket_receiver,
-        websocket_url,
+        websocket_stream,
+        websocket_sink,
     ));
 
     (websocket_sender, backfill_sender)
@@ -151,6 +142,11 @@ async fn handle_message(
     news_backfill_sender: mpsc::Sender<backfill::Message>,
     message: Message,
 ) {
+    if message.assets.is_empty() {
+        message.response.send(()).unwrap();
+        return;
+    }
+
     let (us_equity_symbols, crypto_symbols): (Vec<_>, Vec<_>) = message
         .assets
         .clone()
@@ -160,28 +156,50 @@ async fn handle_message(
             Class::Crypto => Either::Right(asset.0),
         });
 
-    let symbols = message.assets.map(|(symbol, _)| symbol);
+    let symbols = message
+        .assets
+        .into_iter()
+        .map(|(symbol, _)| symbol)
+        .collect::<Vec<_>>();
 
     let bars_us_equity_future = async {
-        if let Some(us_equity_symbols) = NonEmpty::from_vec(us_equity_symbols.clone()) {
-            create_send_await!(
-                bars_us_equity_websocket_sender,
-                websocket::Message::new,
-                message.action.into(),
-                us_equity_symbols
-            );
+        if us_equity_symbols.is_empty() {
+            return;
         }
+
+        create_send_await!(
+            bars_us_equity_websocket_sender,
+            websocket::Message::new,
+            message.action.into(),
+            us_equity_symbols.clone()
+        );
+
+        create_send_await!(
+            bars_us_equity_backfill_sender,
+            backfill::Message::new,
+            message.action.into(),
+            us_equity_symbols
+        );
     };
 
     let bars_crypto_future = async {
-        if let Some(crypto_symbols) = NonEmpty::from_vec(crypto_symbols.clone()) {
-            create_send_await!(
-                bars_crypto_websocket_sender,
-                websocket::Message::new,
-                message.action.into(),
-                crypto_symbols
-            );
+        if crypto_symbols.is_empty() {
+            return;
         }
+
+        create_send_await!(
+            bars_crypto_websocket_sender,
+            websocket::Message::new,
+            message.action.into(),
+            crypto_symbols.clone()
+        );
+
+        create_send_await!(
+            bars_crypto_backfill_sender,
+            backfill::Message::new,
+            message.action.into(),
+            crypto_symbols
+        );
     };
 
     let news_future = async {
@@ -191,127 +209,62 @@ async fn handle_message(
             message.action.into(),
             symbols.clone()
         );
-    };
 
-    join!(bars_us_equity_future, bars_crypto_future, news_future);
-
-    if message.action == Action::Disable {
-        message.response.send(()).unwrap();
-        return;
-    }
-
-    match message.action {
-        Action::Add | Action::Enable => {
-            let symbols = Vec::from(symbols.clone());
-
-            let assets = async {
-                alpaca::assets::get_by_symbols(
-                    &config.alpaca_client,
-                    &config.alpaca_rate_limiter,
-                    &symbols,
-                    None,
-                    &ALPACA_API_BASE,
-                )
-                .await
-                .unwrap()
-                .into_iter()
-                .map(|asset| (asset.symbol.clone(), asset))
-                .collect::<HashMap<_, _>>()
-            };
-
-            let positions = async {
-                alpaca::positions::get_by_symbols(
-                    &config.alpaca_client,
-                    &config.alpaca_rate_limiter,
-                    &symbols,
-                    None,
-                    &ALPACA_API_BASE,
-                )
-                .await
-                .unwrap()
-                .into_iter()
-                .map(|position| (position.symbol.clone(), position))
-                .collect::<HashMap<_, _>>()
-            };
-
-            let (mut assets, mut positions) = join!(assets, positions);
-
-            let mut batch = Vec::with_capacity(symbols.len());
-
-            for symbol in &symbols {
-                if let Some(asset) = assets.remove(symbol) {
-                    let position = positions.remove(symbol);
-                    batch.push(Asset::from((asset, position)));
-                } else {
-                    error!("Failed to find asset for symbol: {}.", symbol);
-                }
-            }
-
-            database::assets::upsert_batch(
-                &config.clickhouse_client,
-                &config.clickhouse_concurrency_limiter,
-                &batch,
-            )
-            .await
-            .unwrap();
-        }
-        Action::Remove => {
-            database::assets::delete_where_symbols(
-                &config.clickhouse_client,
-                &config.clickhouse_concurrency_limiter,
-                &Vec::from(symbols.clone()),
-            )
-            .await
-            .unwrap();
-        }
-        Action::Disable => unreachable!(),
-    }
-
-    let bars_us_equity_future = async {
-        if let Some(us_equity_symbols) = NonEmpty::from_vec(us_equity_symbols) {
-            create_send_await!(
-                bars_us_equity_backfill_sender,
-                backfill::Message::new,
-                match message.action {
-                    Action::Add | Action::Enable => backfill::Action::Backfill,
-                    Action::Remove => backfill::Action::Purge,
-                    Action::Disable => unreachable!(),
-                },
-                us_equity_symbols
-            );
-        }
-    };
-
-    let bars_crypto_future = async {
-        if let Some(crypto_symbols) = NonEmpty::from_vec(crypto_symbols) {
-            create_send_await!(
-                bars_crypto_backfill_sender,
-                backfill::Message::new,
-                match message.action {
-                    Action::Add | Action::Enable => backfill::Action::Backfill,
-                    Action::Remove => backfill::Action::Purge,
-                    Action::Disable => unreachable!(),
-                },
-                crypto_symbols
-            );
-        }
-    };
-
-    let news_future = async {
         create_send_await!(
             news_backfill_sender,
             backfill::Message::new,
-            match message.action {
-                Action::Add | Action::Enable => backfill::Action::Backfill,
-                Action::Remove => backfill::Action::Purge,
-                Action::Disable => unreachable!(),
-            },
-            symbols
+            message.action.into(),
+            symbols.clone()
         );
     };
 
     join!(bars_us_equity_future, bars_crypto_future, news_future);
 
+    match message.action {
+        Action::Add => {
+            let assets = join_all(symbols.into_iter().map(|symbol| {
+                let config = config.clone();
+                async move {
+                    let asset_future = async {
+                        alpaca::api::incoming::asset::get_by_symbol(
+                            &config.alpaca_client,
+                            &config.alpaca_rate_limiter,
+                            &symbol,
+                            Some(backoff::infinite()),
+                        )
+                        .await
+                        .unwrap()
+                    };
+
+                    let position_future = async {
+                        alpaca::api::incoming::position::get_by_symbol(
+                            &config.alpaca_client,
+                            &config.alpaca_rate_limiter,
+                            &symbol,
+                            Some(backoff::infinite()),
+                        )
+                        .await
+                        .unwrap()
+                    };
+
+                    let (asset, position) = join!(asset_future, position_future);
+                    Asset::from((asset, position))
+                }
+            }))
+            .await;
+
+            database::assets::upsert_batch(&config.clickhouse_client, &assets)
+                .await
+                .unwrap();
+        }
+        Action::Remove => {
+            database::assets::delete_where_symbols(&config.clickhouse_client, &symbols)
+                .await
+                .unwrap();
+        }
+        _ => {}
+    }
+
     message.response.send(()).unwrap();
 }
 
@@ -321,19 +274,13 @@ async fn handle_clock_message(
     bars_crypto_backfill_sender: mpsc::Sender<backfill::Message>,
     news_backfill_sender: mpsc::Sender<backfill::Message>,
 ) {
-    database::cleanup_all(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .unwrap();
+    database::cleanup_all(&config.clickhouse_client)
+        .await
+        .unwrap();
 
-    let assets = database::assets::select(
-        &config.clickhouse_client,
-        &config.clickhouse_concurrency_limiter,
-    )
-    .await
-    .unwrap();
+    let assets = database::assets::select(&config.clickhouse_client)
+        .await
+        .unwrap();
 
     let (us_equity_symbols, crypto_symbols): (Vec<_>, Vec<_>) = assets
         .clone()
@@ -349,36 +296,30 @@ async fn handle_clock_message(
         .collect::<Vec<_>>();
 
     let bars_us_equity_future = async {
-        if let Some(us_equity_symbols) = NonEmpty::from_vec(us_equity_symbols) {
-            create_send_await!(
-                bars_us_equity_backfill_sender,
-                backfill::Message::new,
-                backfill::Action::Backfill,
-                us_equity_symbols
-            );
-        }
+        create_send_await!(
+            bars_us_equity_backfill_sender,
+            backfill::Message::new,
+            Some(backfill::Action::Backfill),
+            us_equity_symbols.clone()
+        );
     };
 
     let bars_crypto_future = async {
-        if let Some(crypto_symbols) = NonEmpty::from_vec(crypto_symbols) {
-            create_send_await!(
-                bars_crypto_backfill_sender,
-                backfill::Message::new,
-                backfill::Action::Backfill,
-                crypto_symbols
-            );
-        }
+        create_send_await!(
+            bars_crypto_backfill_sender,
+            backfill::Message::new,
+            Some(backfill::Action::Backfill),
+            crypto_symbols.clone()
+        );
     };
 
     let news_future = async {
-        if let Some(symbols) = NonEmpty::from_vec(symbols) {
-            create_send_await!(
-                news_backfill_sender,
-                backfill::Message::new,
-                backfill::Action::Backfill,
-                symbols
-            );
-        }
+        create_send_await!(
+            news_backfill_sender,
+            backfill::Message::new,
+            Some(backfill::Action::Backfill),
+            symbols
+        );
     };
 
     join!(bars_us_equity_future, bars_crypto_future, news_future);

src/threads/data/websocket.rs

@@ -0,0 +1,427 @@
+use super::ThreadType;
+use crate::{
+    config::Config,
+    database,
+    types::{alpaca::websocket, news::Prediction, Bar, Class, News},
+};
+use async_trait::async_trait;
+use futures_util::{
+    future::join_all,
+    stream::{SplitSink, SplitStream},
+    SinkExt, StreamExt,
+};
+use log::{debug, error, info};
+use serde_json::{from_str, to_string};
+use std::{collections::HashMap, sync::Arc};
+use tokio::{
+    net::TcpStream,
+    select, spawn,
+    sync::{mpsc, oneshot, Mutex, RwLock},
+    task::block_in_place,
+};
+use tokio_tungstenite::{tungstenite, MaybeTlsStream, WebSocketStream};
+
+pub enum Action {
+    Subscribe,
+    Unsubscribe,
+}
+
+impl From<super::Action> for Option<Action> {
+    fn from(action: super::Action) -> Self {
+        match action {
+            super::Action::Add | super::Action::Enable => Some(Action::Subscribe),
+            super::Action::Remove | super::Action::Disable => Some(Action::Unsubscribe),
+        }
+    }
+}
+
+pub struct Message {
+    pub action: Option<Action>,
+    pub symbols: Vec<String>,
+    pub response: oneshot::Sender<()>,
+}
+
+impl Message {
+    pub fn new(action: Option<Action>, symbols: Vec<String>) -> (Self, oneshot::Receiver<()>) {
+        let (sender, receiver) = oneshot::channel();
+        (
+            Self {
+                action,
+                symbols,
+                response: sender,
+            },
+            receiver,
+        )
+    }
+}
+
+pub struct Pending {
+    pub subscriptions: HashMap<String, oneshot::Sender<()>>,
+    pub unsubscriptions: HashMap<String, oneshot::Sender<()>>,
+}
+
+#[async_trait]
+pub trait Handler: Send + Sync {
+    fn create_subscription_message(
+        &self,
+        symbols: Vec<String>,
+    ) -> websocket::data::outgoing::subscribe::Message;
+    async fn handle_websocket_message(
+        &self,
+        pending: Arc<RwLock<Pending>>,
+        message: websocket::data::incoming::Message,
+    );
+}
+
+pub async fn run(
+    handler: Arc<Box<dyn Handler>>,
+    mut receiver: mpsc::Receiver<Message>,
+    mut websocket_stream: SplitStream<WebSocketStream<MaybeTlsStream<TcpStream>>>,
+    websocket_sink: SplitSink<WebSocketStream<MaybeTlsStream<TcpStream>>, tungstenite::Message>,
+) {
+    let pending = Arc::new(RwLock::new(Pending {
+        subscriptions: HashMap::new(),
+        unsubscriptions: HashMap::new(),
+    }));
+    let websocket_sink = Arc::new(Mutex::new(websocket_sink));
+
+    loop {
+        select! {
+            Some(message) = receiver.recv() => {
+                spawn(handle_message(
+                    handler.clone(),
+                    pending.clone(),
+                    websocket_sink.clone(),
+                    message,
+                ));
+            }
+            Some(Ok(message)) = websocket_stream.next() => {
+                match message {
+                    tungstenite::Message::Text(message) => {
+                        let parsed_message = from_str::<Vec<websocket::data::incoming::Message>>(&message);
+
+                        if parsed_message.is_err() {
+                            error!("Failed to deserialize websocket message: {:?}", message);
+                            continue;
+                        }
+
+                        for message in parsed_message.unwrap() {
+                            let handler = handler.clone();
+                            let pending = pending.clone();
+                            spawn(async move {
+                                handler.handle_websocket_message(pending, message).await;
+                            });
+                        }
+                    }
+                    tungstenite::Message::Ping(_) => {}
+                    _ => error!("Unexpected websocket message: {:?}", message),
+                }
+            }
+            else => panic!("Communication channel unexpectedly closed.")
+        }
+    }
+}
+
+async fn handle_message(
+    handler: Arc<Box<dyn Handler>>,
+    pending: Arc<RwLock<Pending>>,
+    sink: Arc<Mutex<SplitSink<WebSocketStream<MaybeTlsStream<TcpStream>>, tungstenite::Message>>>,
+    message: Message,
+) {
+    if message.symbols.is_empty() {
+        message.response.send(()).unwrap();
+        return;
+    }
+
+    match message.action {
+        Some(Action::Subscribe) => {
+            let (pending_subscriptions, receivers): (Vec<_>, Vec<_>) = message
+                .symbols
+                .iter()
+                .map(|symbol| {
+                    let (sender, receiver) = oneshot::channel();
+                    ((symbol.clone(), sender), receiver)
+                })
+                .unzip();
+
+            pending
+                .write()
+                .await
+                .subscriptions
+                .extend(pending_subscriptions);
+
+            sink.lock()
+                .await
+                .send(tungstenite::Message::Text(
+                    to_string(&websocket::data::outgoing::Message::Subscribe(
+                        handler.create_subscription_message(message.symbols),
+                    ))
+                    .unwrap(),
+                ))
+                .await
+                .unwrap();
+
+            join_all(receivers).await;
+        }
+        Some(Action::Unsubscribe) => {
+            let (pending_unsubscriptions, receivers): (Vec<_>, Vec<_>) = message
+                .symbols
+                .iter()
+                .map(|symbol| {
+                    let (sender, receiver) = oneshot::channel();
+                    ((symbol.clone(), sender), receiver)
+                })
+                .unzip();
+
+            pending
+                .write()
+                .await
+                .unsubscriptions
+                .extend(pending_unsubscriptions);
+
+            sink.lock()
+                .await
+                .send(tungstenite::Message::Text(
+                    to_string(&websocket::data::outgoing::Message::Unsubscribe(
+                        handler.create_subscription_message(message.symbols.clone()),
+                    ))
+                    .unwrap(),
+                ))
+                .await
+                .unwrap();
+
+            join_all(receivers).await;
+        }
+        None => {}
+    }
+
+    message.response.send(()).unwrap();
+}
+
+struct BarsHandler {
+    config: Arc<Config>,
+    subscription_message_constructor:
+        fn(Vec<String>) -> websocket::data::outgoing::subscribe::Message,
+}
+
+#[async_trait]
+impl Handler for BarsHandler {
+    fn create_subscription_message(
+        &self,
+        symbols: Vec<String>,
+    ) -> websocket::data::outgoing::subscribe::Message {
+        (self.subscription_message_constructor)(symbols)
+    }
+
+    async fn handle_websocket_message(
+        &self,
+        pending: Arc<RwLock<Pending>>,
+        message: websocket::data::incoming::Message,
+    ) {
+        match message {
+            websocket::data::incoming::Message::Subscription(message) => {
+                let websocket::data::incoming::subscription::Message::Market {
+                    bars: symbols, ..
+                } = message
+                else {
+                    unreachable!()
+                };
+
+                let mut pending = pending.write().await;
+
+                let newly_subscribed = pending
+                    .subscriptions
+                    .extract_if(|symbol, _| symbols.contains(symbol))
+                    .collect::<HashMap<_, _>>();
+
+                let newly_unsubscribed = pending
+                    .unsubscriptions
+                    .extract_if(|symbol, _| !symbols.contains(symbol))
+                    .collect::<HashMap<_, _>>();
+
+                drop(pending);
+
+                if !newly_subscribed.is_empty() {
+                    info!(
+                        "Subscribed to bars for {:?}.",
+                        newly_subscribed.keys().collect::<Vec<_>>()
+                    );
+
+                    for sender in newly_subscribed.into_values() {
+                        sender.send(()).unwrap();
+                    }
+                }
+
+                if !newly_unsubscribed.is_empty() {
+                    info!(
+                        "Unsubscribed from bars for {:?}.",
+                        newly_unsubscribed.keys().collect::<Vec<_>>()
+                    );
+
+                    for sender in newly_unsubscribed.into_values() {
+                        sender.send(()).unwrap();
+                    }
+                }
+            }
+            websocket::data::incoming::Message::Bar(message)
+            | websocket::data::incoming::Message::UpdatedBar(message) => {
+                let bar = Bar::from(message);
+                debug!("Received bar for {}: {}.", bar.symbol, bar.time);
+
+                database::bars::upsert(&self.config.clickhouse_client, &bar)
+                    .await
+                    .unwrap();
+            }
+            websocket::data::incoming::Message::Status(message) => {
+                debug!(
+                    "Received status message for {}: {:?}.",
+                    message.symbol, message.status
+                );
+
+                match message.status {
+                    websocket::data::incoming::status::Status::TradingHalt(_)
+                    | websocket::data::incoming::status::Status::VolatilityTradingPause(_) => {
+                        database::assets::update_status_where_symbol(
+                            &self.config.clickhouse_client,
+                            &message.symbol,
+                            false,
+                        )
+                        .await
+                        .unwrap();
+                    }
+                    websocket::data::incoming::status::Status::Resume(_)
+                    | websocket::data::incoming::status::Status::TradingResumption(_) => {
+                        database::assets::update_status_where_symbol(
+                            &self.config.clickhouse_client,
+                            &message.symbol,
+                            true,
+                        )
+                        .await
+                        .unwrap();
+                    }
+                    _ => {}
+                }
+            }
+            websocket::data::incoming::Message::Error(message) => {
+                error!("Received error message: {}.", message.message);
+            }
+            _ => unreachable!(),
+        }
+    }
+}
+
+struct NewsHandler {
+    config: Arc<Config>,
+}
+
+#[async_trait]
+impl Handler for NewsHandler {
+    fn create_subscription_message(
+        &self,
+        symbols: Vec<String>,
+    ) -> websocket::data::outgoing::subscribe::Message {
+        websocket::data::outgoing::subscribe::Message::new_news(symbols)
+    }
+
+    async fn handle_websocket_message(
+        &self,
+        pending: Arc<RwLock<Pending>>,
+        message: websocket::data::incoming::Message,
+    ) {
+        match message {
+            websocket::data::incoming::Message::Subscription(message) => {
+                let websocket::data::incoming::subscription::Message::News { news: symbols } =
+                    message
+                else {
+                    unreachable!()
+                };
+
+                let mut pending = pending.write().await;
+
+                let newly_subscribed = pending
+                    .subscriptions
+                    .extract_if(|symbol, _| symbols.contains(symbol))
+                    .collect::<HashMap<_, _>>();
+
+                let newly_unsubscribed = pending
+                    .unsubscriptions
+                    .extract_if(|symbol, _| !symbols.contains(symbol))
+                    .collect::<HashMap<_, _>>();
+
+                drop(pending);
+
+                if !newly_subscribed.is_empty() {
+                    info!(
+                        "Subscribed to news for {:?}.",
+                        newly_subscribed.keys().collect::<Vec<_>>()
+                    );
+
+                    for sender in newly_subscribed.into_values() {
+                        sender.send(()).unwrap();
+                    }
+                }
+
+                if !newly_unsubscribed.is_empty() {
+                    info!(
+                        "Unsubscribed from news for {:?}.",
+                        newly_unsubscribed.keys().collect::<Vec<_>>()
+                    );
+
+                    for sender in newly_unsubscribed.into_values() {
+                        sender.send(()).unwrap();
+                    }
+                }
+            }
+            websocket::data::incoming::Message::News(message) => {
+                let news = News::from(message);
+
+                debug!(
+                    "Received news for {:?}: {}.",
+                    news.symbols, news.time_created
+                );
+
+                let input = format!("{}\n\n{}", news.headline, news.content);
+
+                let sequence_classifier = self.config.sequence_classifier.lock().await;
+                let prediction = block_in_place(|| {
+                    sequence_classifier
+                        .predict(vec![input.as_str()])
+                        .into_iter()
+                        .map(|label| Prediction::try_from(label).unwrap())
+                        .collect::<Vec<_>>()[0]
+                });
+                drop(sequence_classifier);
+
+                let news = News {
+                    sentiment: prediction.sentiment,
+                    confidence: prediction.confidence,
+                    ..news
+                };
+
+                database::news::upsert(&self.config.clickhouse_client, &news)
+                    .await
+                    .unwrap();
+            }
+            websocket::data::incoming::Message::Error(message) => {
+                error!("Received error message: {}.", message.message);
+            }
+            _ => unreachable!(),
+        }
+    }
+}
+
+pub fn create_handler(thread_type: ThreadType, config: Arc<Config>) -> Box<dyn Handler> {
+    match thread_type {
+        ThreadType::Bars(Class::UsEquity) => Box::new(BarsHandler {
+            config,
+            subscription_message_constructor:
+                websocket::data::outgoing::subscribe::Message::new_market_us_equity,
+        }),
+        ThreadType::Bars(Class::Crypto) => Box::new(BarsHandler {
+            config,
+            subscription_message_constructor:
+                websocket::data::outgoing::subscribe::Message::new_market_crypto,
+        }),
+        ThreadType::News => Box::new(NewsHandler { config }),
+    }
+}

src/threads/data/websocket/bars.rs

@@ -1,171 +0,0 @@
-use super::State;
-use crate::{
-    config::{Config, CLICKHOUSE_BATCH_BARS_SIZE},
-    database,
-    threads::data::ThreadType,
-};
-use async_trait::async_trait;
-use clickhouse::inserter::Inserter;
-use log::{debug, error, info};
-use nonempty::NonEmpty;
-use qrust::{
-    types::{alpaca::websocket, Bar, Class},
-    utils::ONE_SECOND,
-};
-use std::{
-    collections::{HashMap, HashSet},
-    sync::Arc,
-};
-use tokio::sync::{Mutex, RwLock};
-
-pub struct Handler {
-    pub config: Arc<Config>,
-    pub inserter: Arc<Mutex<Inserter<Bar>>>,
-    pub subscription_message_constructor:
-        fn(NonEmpty<String>) -> websocket::data::outgoing::subscribe::Message,
-}
-
-#[async_trait]
-impl super::Handler for Handler {
-    fn create_subscription_message(
-        &self,
-        symbols: NonEmpty<String>,
-    ) -> websocket::data::outgoing::subscribe::Message {
-        (self.subscription_message_constructor)(symbols)
-    }
-
-    async fn handle_websocket_message(
-        &self,
-        state: Arc<RwLock<State>>,
-        message: websocket::data::incoming::Message,
-    ) {
-        match message {
-            websocket::data::incoming::Message::Subscription(message) => {
-                let websocket::data::incoming::subscription::Message::Market {
-                    bars: symbols, ..
-                } = message
-                else {
-                    unreachable!()
-                };
-
-                let symbols = symbols.into_iter().collect::<HashSet<_>>();
-                let mut state = state.write().await;
-
-                let newly_subscribed = state
-                    .pending_subscriptions
-                    .extract_if(|symbol, _| symbols.contains(symbol))
-                    .collect::<HashMap<_, _>>();
-
-                let newly_unsubscribed = state
-                    .pending_unsubscriptions
-                    .extract_if(|symbol, _| !symbols.contains(symbol))
-                    .collect::<HashMap<_, _>>();
-
-                state
-                    .active_subscriptions
-                    .extend(newly_subscribed.keys().cloned());
-
-                drop(state);
-
-                if !newly_subscribed.is_empty() {
-                    info!(
-                        "Subscribed to bars for {:?}.",
-                        newly_subscribed.keys().collect::<Vec<_>>()
-                    );
-
-                    for sender in newly_subscribed.into_values() {
-                        sender.send(()).unwrap();
-                    }
-                }
-
-                if !newly_unsubscribed.is_empty() {
-                    info!(
-                        "Unsubscribed from bars for {:?}.",
-                        newly_unsubscribed.keys().collect::<Vec<_>>()
-                    );
-
-                    for sender in newly_unsubscribed.into_values() {
-                        sender.send(()).unwrap();
-                    }
-                }
-            }
-            websocket::data::incoming::Message::Bar(message)
-            | websocket::data::incoming::Message::UpdatedBar(message) => {
-                let bar = Bar::from(message);
-                debug!("Received bar for {}: {}.", bar.symbol, bar.time);
-                self.inserter.lock().await.write(&bar).await.unwrap();
-            }
-            websocket::data::incoming::Message::Status(message) => {
-                debug!(
-                    "Received status message for {}: {:?}.",
-                    message.symbol, message.status
-                );
-
-                match message.status {
-                    websocket::data::incoming::status::Status::TradingHalt(_)
-                    | websocket::data::incoming::status::Status::VolatilityTradingPause(_) => {
-                        database::assets::update_status_where_symbol(
-                            &self.config.clickhouse_client,
-                            &self.config.clickhouse_concurrency_limiter,
-                            &message.symbol,
-                            false,
-                        )
-                        .await
-                        .unwrap();
-                    }
-                    websocket::data::incoming::status::Status::Resume(_)
-                    | websocket::data::incoming::status::Status::TradingResumption(_) => {
-                        database::assets::update_status_where_symbol(
-                            &self.config.clickhouse_client,
-                            &self.config.clickhouse_concurrency_limiter,
-                            &message.symbol,
-                            true,
-                        )
-                        .await
-                        .unwrap();
-                    }
-                    _ => {}
-                }
-            }
-            websocket::data::incoming::Message::Error(message) => {
-                error!("Received error message: {}.", message.message);
-            }
-            _ => unreachable!(),
-        }
-    }
-
-    fn log_string(&self) -> &'static str {
-        "bars"
-    }
-
-    async fn run_inserter(&self) {
-        super::run_inserter(self.inserter.clone()).await;
-    }
-}
-
-pub fn create_handler(config: Arc<Config>, thread_type: ThreadType) -> Box<dyn super::Handler> {
-    let inserter = Arc::new(Mutex::new(
-        config
-            .clickhouse_client
-            .inserter("bars")
-            .unwrap()
-            .with_period(Some(ONE_SECOND))
-            .with_max_entries((*CLICKHOUSE_BATCH_BARS_SIZE).try_into().unwrap()),
-    ));
-
-    let subscription_message_constructor = match thread_type {
-        ThreadType::Bars(Class::UsEquity) => {
-            websocket::data::outgoing::subscribe::Message::new_market_us_equity
-        }
-        ThreadType::Bars(Class::Crypto) => {
-            websocket::data::outgoing::subscribe::Message::new_market_crypto
-        }
-        _ => unreachable!(),
-    };
-
-    Box::new(Handler {
-        config,
-        inserter,
-        subscription_message_constructor,
-    })
-}

src/threads/data/websocket/mod.rs

@@ -1,353 +0,0 @@
-pub mod bars;
-pub mod news;
-
-use crate::config::{ALPACA_API_KEY, ALPACA_API_SECRET};
-use async_trait::async_trait;
-use backoff::{future::retry_notify, ExponentialBackoff};
-use clickhouse::{inserter::Inserter, Row};
-use futures_util::{future::join_all, SinkExt, StreamExt};
-use log::error;
-use nonempty::NonEmpty;
-use qrust::types::alpaca::{self, websocket};
-use serde::Serialize;
-use serde_json::{from_str, to_string};
-use std::{
-    collections::{HashMap, HashSet},
-    sync::Arc,
-    time::Duration,
-};
-use tokio::{
-    net::TcpStream,
-    select, spawn,
-    sync::{mpsc, oneshot, Mutex, RwLock},
-};
-use tokio_tungstenite::{connect_async, tungstenite, MaybeTlsStream, WebSocketStream};
-
-pub enum Action {
-    Subscribe,
-    Unsubscribe,
-}
-
-impl From<super::Action> for Option<Action> {
-    fn from(action: super::Action) -> Self {
-        match action {
-            super::Action::Add | super::Action::Enable => Some(Action::Subscribe),
-            super::Action::Remove | super::Action::Disable => Some(Action::Unsubscribe),
-        }
-    }
-}
-
-pub struct Message {
-    pub action: Option<Action>,
-    pub symbols: NonEmpty<String>,
-    pub response: oneshot::Sender<()>,
-}
-
-impl Message {
-    pub fn new(action: Option<Action>, symbols: NonEmpty<String>) -> (Self, oneshot::Receiver<()>) {
-        let (sender, receiver) = oneshot::channel();
-        (
-            Self {
-                action,
-                symbols,
-                response: sender,
-            },
-            receiver,
-        )
-    }
-}
-
-pub struct State {
-    pub active_subscriptions: HashSet<String>,
-    pub pending_subscriptions: HashMap<String, oneshot::Sender<()>>,
-    pub pending_unsubscriptions: HashMap<String, oneshot::Sender<()>>,
-}
-
-#[async_trait]
-pub trait Handler: Send + Sync + 'static {
-    fn create_subscription_message(
-        &self,
-        symbols: NonEmpty<String>,
-    ) -> websocket::data::outgoing::subscribe::Message;
-    async fn handle_websocket_message(
-        &self,
-        state: Arc<RwLock<State>>,
-        message: websocket::data::incoming::Message,
-    );
-    fn log_string(&self) -> &'static str;
-    async fn run_inserter(&self);
-}
-
-pub async fn run(
-    handler: Arc<Box<dyn Handler>>,
-    mut receiver: mpsc::Receiver<Message>,
-    websocket_url: String,
-) {
-    let state = Arc::new(RwLock::new(State {
-        active_subscriptions: HashSet::new(),
-        pending_subscriptions: HashMap::new(),
-        pending_unsubscriptions: HashMap::new(),
-    }));
-
-    let handler_clone = handler.clone();
-    spawn(async move { handler_clone.run_inserter().await });
-
-    let (sink_sender, sink_receiver) = mpsc::channel(100);
-    let (stream_sender, mut stream_receiver) = mpsc::channel(10_000);
-
-    spawn(run_connection(
-        handler.clone(),
-        sink_receiver,
-        stream_sender,
-        websocket_url.clone(),
-        state.clone(),
-    ));
-
-    loop {
-        select! {
-            Some(message) = receiver.recv() => {
-                spawn(handle_message(
-                    handler.clone(),
-                    state.clone(),
-                    sink_sender.clone(),
-                    message,
-                ));
-            }
-            Some(message) = stream_receiver.recv() => {
-                match message {
-                    tungstenite::Message::Text(message) => {
-                        let parsed_message = from_str::<Vec<websocket::data::incoming::Message>>(&message);
-
-                        if parsed_message.is_err() {
-                            error!("Failed to deserialize websocket message: {:?}.", message);
-                            continue;
-                        }
-
-                        for message in parsed_message.unwrap() {
-                            let handler = handler.clone();
-                            let state = state.clone();
-                            spawn(async move {
-                                handler.handle_websocket_message(state, message).await;
-                            });
-                        }
-                    }
-                    tungstenite::Message::Ping(_) => {}
-                    _ => error!("Unexpected websocket message: {:?}.", message),
-                }
-            }
-            else => panic!("Communication channel unexpectedly closed.")
-        }
-    }
-}
-
-#[allow(clippy::too_many_lines)]
-async fn run_connection(
-    handler: Arc<Box<dyn Handler>>,
-    mut sink_receiver: mpsc::Receiver<tungstenite::Message>,
-    stream_sender: mpsc::Sender<tungstenite::Message>,
-    websocket_url: String,
-    state: Arc<RwLock<State>>,
-) {
-    let mut peek = None;
-
-    'connection: loop {
-        let (websocket, _): (WebSocketStream<MaybeTlsStream<TcpStream>>, _) = retry_notify(
-            ExponentialBackoff::default(),
-            || async {
-                connect_async(websocket_url.clone())
-                    .await
-                    .map_err(Into::into)
-            },
-            |e, duration: Duration| {
-                error!(
-                    "Failed to connect to {} websocket, will retry in {} seconds: {}.",
-                    handler.log_string(),
-                    duration.as_secs(),
-                    e
-                );
-            },
-        )
-        .await
-        .unwrap();
-
-        let (mut sink, mut stream) = websocket.split();
-        alpaca::websocket::data::authenticate(
-            &mut sink,
-            &mut stream,
-            (*ALPACA_API_KEY).to_string(),
-            (*ALPACA_API_SECRET).to_string(),
-        )
-        .await;
-
-        let mut state = state.write().await;
-
-        state
-            .pending_unsubscriptions
-            .drain()
-            .for_each(|(_, sender)| {
-                sender.send(()).unwrap();
-            });
-
-        let (recovered_subscriptions, receivers) = state
-            .active_subscriptions
-            .iter()
-            .map(|symbol| {
-                let (sender, receiver) = oneshot::channel();
-                ((symbol.clone(), sender), receiver)
-            })
-            .unzip::<_, _, Vec<_>, Vec<_>>();
-
-        state.pending_subscriptions.extend(recovered_subscriptions);
-
-        let pending_subscriptions = state
-            .pending_subscriptions
-            .keys()
-            .cloned()
-            .collect::<Vec<_>>();
-
-        drop(state);
-
-        if let Some(pending_subscriptions) = NonEmpty::from_vec(pending_subscriptions) {
-            if let Err(err) = sink
-                .send(tungstenite::Message::Text(
-                    to_string(&websocket::data::outgoing::Message::Subscribe(
-                        handler.create_subscription_message(pending_subscriptions),
-                    ))
-                    .unwrap(),
-                ))
-                .await
-            {
-                error!("Failed to send websocket message: {:?}.", err);
-                continue;
-            }
-        }
-
-        join_all(receivers).await;
-
-        if peek.is_some() {
-            if let Err(err) = sink.send(peek.clone().unwrap()).await {
-                error!("Failed to send websocket message: {:?}.", err);
-                continue;
-            }
-            peek = None;
-        }
-
-        loop {
-            select! {
-                Some(message) = sink_receiver.recv() => {
-                    peek = Some(message.clone());
-
-                    if let Err(err) = sink.send(message).await {
-                        error!("Failed to send websocket message: {:?}.", err);
-                        continue 'connection;
-                    };
-
-                    peek = None;
-                }
-                message = stream.next() => {
-                    if message.is_none() {
-                        error!("Websocket stream unexpectedly closed.");
-                        continue 'connection;
-                    }
-
-                    let message = message.unwrap();
-
-                    if let Err(err) = message {
-                        error!("Failed to receive websocket message: {:?}.", err);
-                        continue 'connection;
-                    }
-
-                    let message = message.unwrap();
-
-                    if message.is_close() {
-                        error!("Websocket connection closed.");
-                        continue 'connection;
-                    }
-
-                    stream_sender.send(message).await.unwrap();
-                }
-                else => error!("Communication channel unexpectedly closed.")
-            }
-        }
-    }
-}
-
-async fn handle_message(
-    handler: Arc<Box<dyn Handler>>,
-    pending: Arc<RwLock<State>>,
-    sink_sender: mpsc::Sender<tungstenite::Message>,
-    message: Message,
-) {
-    match message.action {
-        Some(Action::Subscribe) => {
-            let (pending_subscriptions, receivers) = message
-                .symbols
-                .iter()
-                .map(|symbol| {
-                    let (sender, receiver) = oneshot::channel();
-                    ((symbol.clone(), sender), receiver)
-                })
-                .unzip::<_, _, Vec<_>, Vec<_>>();
-
-            pending
-                .write()
-                .await
-                .pending_subscriptions
-                .extend(pending_subscriptions);
-
-            sink_sender
-                .send(tungstenite::Message::Text(
-                    to_string(&websocket::data::outgoing::Message::Subscribe(
-                        handler.create_subscription_message(message.symbols),
-                    ))
-                    .unwrap(),
-                ))
-                .await
-                .unwrap();
-
-            join_all(receivers).await;
-        }
-        Some(Action::Unsubscribe) => {
-            let (pending_unsubscriptions, receivers): (Vec<_>, Vec<_>) = message
-                .symbols
-                .iter()
-                .map(|symbol| {
-                    let (sender, receiver) = oneshot::channel();
-                    ((symbol.clone(), sender), receiver)
-                })
-                .unzip();
-
-            pending
-                .write()
-                .await
-                .pending_unsubscriptions
-                .extend(pending_unsubscriptions);
-
-            sink_sender
-                .send(tungstenite::Message::Text(
-                    to_string(&websocket::data::outgoing::Message::Unsubscribe(
-                        handler.create_subscription_message(message.symbols.clone()),
-                    ))
-                    .unwrap(),
-                ))
-                .await
-                .unwrap();
-
-            join_all(receivers).await;
-        }
-        None => {}
-    }
-
-    message.response.send(()).unwrap();
-}
-
-async fn run_inserter<T>(inserter: Arc<Mutex<Inserter<T>>>)
-where
-    T: Row + Serialize,
-{
-    loop {
-        let time_left = inserter.lock().await.time_left().unwrap();
-        tokio::time::sleep(time_left).await;
-        inserter.lock().await.commit().await.unwrap();
-    }
-}

src/threads/data/websocket/news.rs

@@ -1,116 +0,0 @@
-use super::State;
-use crate::config::{Config, CLICKHOUSE_BATCH_NEWS_SIZE};
-use async_trait::async_trait;
-use clickhouse::inserter::Inserter;
-use log::{debug, error, info};
-use nonempty::NonEmpty;
-use qrust::{
-    types::{alpaca::websocket, News},
-    utils::ONE_SECOND,
-};
-use std::{collections::HashMap, sync::Arc};
-use tokio::sync::{Mutex, RwLock};
-
-pub struct Handler {
-    pub config: Arc<Config>,
-    pub inserter: Arc<Mutex<Inserter<News>>>,
-}
-
-#[async_trait]
-impl super::Handler for Handler {
-    fn create_subscription_message(
-        &self,
-        symbols: NonEmpty<String>,
-    ) -> websocket::data::outgoing::subscribe::Message {
-        websocket::data::outgoing::subscribe::Message::new_news(symbols)
-    }
-
-    async fn handle_websocket_message(
-        &self,
-        state: Arc<RwLock<State>>,
-        message: websocket::data::incoming::Message,
-    ) {
-        match message {
-            websocket::data::incoming::Message::Subscription(message) => {
-                let websocket::data::incoming::subscription::Message::News { news: symbols } =
-                    message
-                else {
-                    unreachable!()
-                };
-
-                let mut state = state.write().await;
-
-                let newly_subscribed = state
-                    .pending_subscriptions
-                    .extract_if(|symbol, _| symbols.contains(symbol))
-                    .collect::<HashMap<_, _>>();
-
-                let newly_unsubscribed = state
-                    .pending_unsubscriptions
-                    .extract_if(|symbol, _| !symbols.contains(symbol))
-                    .collect::<HashMap<_, _>>();
-
-                state
-                    .active_subscriptions
-                    .extend(newly_subscribed.keys().cloned());
-
-                drop(state);
-
-                if !newly_subscribed.is_empty() {
-                    info!(
-                        "Subscribed to news for {:?}.",
-                        newly_subscribed.keys().collect::<Vec<_>>()
-                    );
-
-                    for sender in newly_subscribed.into_values() {
-                        sender.send(()).unwrap();
-                    }
-                }
-
-                if !newly_unsubscribed.is_empty() {
-                    info!(
-                        "Unsubscribed from news for {:?}.",
-                        newly_unsubscribed.keys().collect::<Vec<_>>()
-                    );
-
-                    for sender in newly_unsubscribed.into_values() {
-                        sender.send(()).unwrap();
-                    }
-                }
-            }
-            websocket::data::incoming::Message::News(message) => {
-                let news = News::from(message);
-                debug!(
-                    "Received news for {:?}: {}.",
-                    news.symbols, news.time_created
-                );
-                self.inserter.lock().await.write(&news).await.unwrap();
-            }
-            websocket::data::incoming::Message::Error(message) => {
-                error!("Received error message: {}.", message.message);
-            }
-            _ => unreachable!(),
-        }
-    }
-
-    fn log_string(&self) -> &'static str {
-        "news"
-    }
-
-    async fn run_inserter(&self) {
-        super::run_inserter(self.inserter.clone()).await;
-    }
-}
-
-pub fn create_handler(config: Arc<Config>) -> Box<dyn super::Handler> {
-    let inserter = Arc::new(Mutex::new(
-        config
-            .clickhouse_client
-            .inserter("news")
-            .unwrap()
-            .with_period(Some(ONE_SECOND))
-            .with_max_entries((*CLICKHOUSE_BATCH_NEWS_SIZE).try_into().unwrap()),
-    ));
-
-    Box::new(Handler { config, inserter })
-}

src/threads/trading/mod.rs

@@ -1,26 +1,19 @@
 mod websocket;
 
-use crate::config::{Config, ALPACA_API_BASE, ALPACA_API_KEY, ALPACA_API_SECRET};
+use crate::{
+    config::{Config, ALPACA_WEBSOCKET_URL},
+    types::alpaca,
+};
 use futures_util::StreamExt;
-use qrust::types::alpaca;
 use std::sync::Arc;
 use tokio::spawn;
 use tokio_tungstenite::connect_async;
 
 pub async fn run(config: Arc<Config>) {
-    let (websocket, _) =
-        connect_async(&format!("wss://{}.alpaca.markets/stream", *ALPACA_API_BASE))
-            .await
-            .unwrap();
+    let (websocket, _) = connect_async(&*ALPACA_WEBSOCKET_URL).await.unwrap();
     let (mut websocket_sink, mut websocket_stream) = websocket.split();
 
-    alpaca::websocket::trading::authenticate(
-        &mut websocket_sink,
-        &mut websocket_stream,
-        (*ALPACA_API_KEY).to_string(),
-        (*ALPACA_API_SECRET).to_string(),
-    )
-    .await;
+    alpaca::websocket::trading::authenticate(&mut websocket_sink, &mut websocket_stream).await;
     alpaca::websocket::trading::subscribe(&mut websocket_sink, &mut websocket_stream).await;
 
     spawn(websocket::run(config, websocket_stream));

src/threads/trading/websocket.rs

@@ -1,7 +1,10 @@
-use crate::{config::Config, database};
+use crate::{
+    config::Config,
+    database,
+    types::{alpaca::websocket, Order},
+};
 use futures_util::{stream::SplitStream, StreamExt};
 use log::{debug, error};
-use qrust::types::{alpaca::websocket, Order};
 use serde_json::from_str;
 use std::sync::Arc;
 use tokio::{net::TcpStream, spawn};
@@ -21,7 +24,7 @@ pub async fn run(
                 );
 
                 if parsed_message.is_err() {
-                    error!("Failed to deserialize websocket message: {:?}.", message);
+                    error!("Failed to deserialize websocket message: {:?}", message);
                     continue;
                 }
 
@@ -31,7 +34,7 @@ pub async fn run(
                 ));
             }
             tungstenite::Message::Ping(_) => {}
-            _ => error!("Unexpected websocket message: {:?}.", message),
+            _ => error!("Unexpected websocket message: {:?}", message),
         }
     }
 }
@@ -43,19 +46,15 @@ async fn handle_websocket_message(
     match message {
         websocket::trading::incoming::Message::Order(message) => {
             debug!(
-                "Received order message for {}: {:?}.",
+                "Received order message for {}: {:?}",
                 message.order.symbol, message.event
             );
 
             let order = Order::from(message.order);
 
-            database::orders::upsert(
-                &config.clickhouse_client,
-                &config.clickhouse_concurrency_limiter,
-                &order,
-            )
-            .await
-            .unwrap();
+            database::orders::upsert(&config.clickhouse_client, &order)
+                .await
+                .unwrap();
 
             match message.event {
                 websocket::trading::incoming::order::Event::Fill { position_qty, .. }
@@ -64,7 +63,6 @@ async fn handle_websocket_message(
                 } => {
                     database::assets::update_qty_where_symbol(
                         &config.clickhouse_client,
-                        &config.clickhouse_concurrency_limiter,
                         &order.symbol,
                         position_qty,
                     )

src/types/alpaca/api/incoming/account.rs

@@ -1,7 +1,13 @@
+use crate::config::ALPACA_API_URL;
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::{Client, Error};
 use serde::Deserialize;
 use serde_aux::field_attributes::{
     deserialize_number_from_string, deserialize_option_number_from_string,
 };
+use std::time::Duration;
 use time::OffsetDateTime;
 use uuid::Uuid;
 
@@ -73,3 +79,38 @@ pub struct Account {
     #[serde(deserialize_with = "deserialize_number_from_string")]
     pub regt_buying_power: f64,
 }
+
+pub async fn get(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Account, Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(&format!("{}/account", *ALPACA_API_URL))
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Account>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get account, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/incoming/asset.rs

@@ -0,0 +1,86 @@
+use super::position::Position;
+use crate::{
+    config::ALPACA_API_URL,
+    types::{
+        self,
+        alpaca::shared::asset::{Class, Exchange, Status},
+    },
+};
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::{Client, Error};
+use serde::Deserialize;
+use serde_aux::field_attributes::deserialize_option_number_from_string;
+use std::time::Duration;
+use uuid::Uuid;
+
+#[allow(clippy::struct_excessive_bools)]
+#[derive(Deserialize)]
+pub struct Asset {
+    pub id: Uuid,
+    pub class: Class,
+    pub exchange: Exchange,
+    pub symbol: String,
+    pub name: String,
+    pub status: Status,
+    pub tradable: bool,
+    pub marginable: bool,
+    pub shortable: bool,
+    pub easy_to_borrow: bool,
+    pub fractionable: bool,
+    #[serde(deserialize_with = "deserialize_option_number_from_string")]
+    pub maintenance_margin_requirement: Option<f32>,
+    pub attributes: Option<Vec<String>>,
+}
+
+impl From<(Asset, Option<Position>)> for types::Asset {
+    fn from((asset, position): (Asset, Option<Position>)) -> Self {
+        Self {
+            symbol: asset.symbol,
+            class: asset.class.into(),
+            exchange: asset.exchange.into(),
+            status: asset.status.into(),
+            time_added: time::OffsetDateTime::now_utc(),
+            qty: position.map(|position| position.qty).unwrap_or_default(),
+        }
+    }
+}
+
+pub async fn get_by_symbol(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    symbol: &str,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Asset, Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(&format!("{}/assets/{}", *ALPACA_API_URL, symbol))
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(
+                        reqwest::StatusCode::BAD_REQUEST
+                        | reqwest::StatusCode::FORBIDDEN
+                        | reqwest::StatusCode::NOT_FOUND,
+                    ) => backoff::Error::Permanent(e),
+                    _ => e.into(),
+                })?
+                .json::<Asset>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get asset, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/incoming/bar.rs

@@ -0,0 +1,89 @@
+use crate::types::{self, alpaca::api::outgoing};
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::{Client, Error};
+use serde::Deserialize;
+use std::{collections::HashMap, time::Duration};
+use time::OffsetDateTime;
+
+#[derive(Deserialize)]
+pub struct Bar {
+    #[serde(rename = "t")]
+    #[serde(with = "time::serde::rfc3339")]
+    pub time: OffsetDateTime,
+    #[serde(rename = "o")]
+    pub open: f64,
+    #[serde(rename = "h")]
+    pub high: f64,
+    #[serde(rename = "l")]
+    pub low: f64,
+    #[serde(rename = "c")]
+    pub close: f64,
+    #[serde(rename = "v")]
+    pub volume: f64,
+    #[serde(rename = "n")]
+    pub trades: i64,
+    #[serde(rename = "vw")]
+    pub vwap: f64,
+}
+
+impl From<(Bar, String)> for types::Bar {
+    fn from((bar, symbol): (Bar, String)) -> Self {
+        Self {
+            time: bar.time,
+            symbol,
+            open: bar.open,
+            high: bar.high,
+            low: bar.low,
+            close: bar.close,
+            volume: bar.volume,
+            trades: bar.trades,
+            vwap: bar.vwap,
+        }
+    }
+}
+
+#[derive(Deserialize)]
+pub struct Message {
+    pub bars: HashMap<String, Vec<Bar>>,
+    pub next_page_token: Option<String>,
+}
+
+pub async fn get_historical(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    data_url: &str,
+    query: &outgoing::bar::Bar,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Message, Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(data_url)
+                .query(query)
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Message>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get historical bars, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/incoming/calendar.rs

@@ -0,0 +1,69 @@
+use crate::{
+    config::ALPACA_API_URL,
+    types::{self, alpaca::api::outgoing},
+    utils::{de, time::EST_OFFSET},
+};
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::{Client, Error};
+use serde::Deserialize;
+use std::time::Duration;
+use time::{Date, OffsetDateTime, Time};
+
+#[derive(Deserialize)]
+pub struct Calendar {
+    pub date: Date,
+    #[serde(deserialize_with = "de::human_time_hh_mm")]
+    pub open: Time,
+    #[serde(deserialize_with = "de::human_time_hh_mm")]
+    pub close: Time,
+    pub settlement_date: Date,
+}
+
+impl From<Calendar> for types::Calendar {
+    fn from(calendar: Calendar) -> Self {
+        Self {
+            date: calendar.date,
+            open: OffsetDateTime::new_in_offset(calendar.date, calendar.open, *EST_OFFSET),
+            close: OffsetDateTime::new_in_offset(calendar.date, calendar.close, *EST_OFFSET),
+        }
+    }
+}
+
+pub async fn get(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    query: &outgoing::calendar::Calendar,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Vec<Calendar>, Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(&format!("{}/calendar", *ALPACA_API_URL))
+                .query(query)
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Vec<Calendar>>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get calendar, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/incoming/clock.rs

@@ -0,0 +1,54 @@
+use crate::config::ALPACA_API_URL;
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::{Client, Error};
+use serde::Deserialize;
+use std::time::Duration;
+use time::OffsetDateTime;
+
+#[derive(Deserialize)]
+pub struct Clock {
+    #[serde(with = "time::serde::rfc3339")]
+    pub timestamp: OffsetDateTime,
+    pub is_open: bool,
+    #[serde(with = "time::serde::rfc3339")]
+    pub next_open: OffsetDateTime,
+    #[serde(with = "time::serde::rfc3339")]
+    pub next_close: OffsetDateTime,
+}
+
+pub async fn get(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Clock, Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(&format!("{}/clock", *ALPACA_API_URL))
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Clock>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get clock, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/incoming/news.rs

@@ -0,0 +1,111 @@
+use crate::{
+    config::ALPACA_NEWS_DATA_API_URL,
+    types::{
+        self,
+        alpaca::{api::outgoing, shared::news::normalize_html_content},
+    },
+    utils::de,
+};
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::{Client, Error};
+use serde::Deserialize;
+use std::time::Duration;
+use time::OffsetDateTime;
+
+#[derive(Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum ImageSize {
+    Thumb,
+    Small,
+    Large,
+}
+
+#[derive(Deserialize)]
+pub struct Image {
+    pub size: ImageSize,
+    pub url: String,
+}
+
+#[derive(Deserialize)]
+pub struct News {
+    pub id: i64,
+    #[serde(with = "time::serde::rfc3339")]
+    #[serde(rename = "created_at")]
+    pub time_created: OffsetDateTime,
+    #[serde(with = "time::serde::rfc3339")]
+    #[serde(rename = "updated_at")]
+    pub time_updated: OffsetDateTime,
+    #[serde(deserialize_with = "de::add_slash_to_symbols")]
+    pub symbols: Vec<String>,
+    pub headline: String,
+    pub author: String,
+    pub source: String,
+    pub summary: String,
+    pub content: String,
+    pub url: Option<String>,
+    pub images: Vec<Image>,
+}
+
+impl From<News> for types::News {
+    fn from(news: News) -> Self {
+        Self {
+            id: news.id,
+            time_created: news.time_created,
+            time_updated: news.time_updated,
+            symbols: news.symbols,
+            headline: normalize_html_content(&news.headline),
+            author: normalize_html_content(&news.author),
+            source: normalize_html_content(&news.source),
+            summary: normalize_html_content(&news.summary),
+            content: normalize_html_content(&news.content),
+            sentiment: types::news::Sentiment::Neutral,
+            confidence: 0.0,
+            url: news.url.unwrap_or_default(),
+        }
+    }
+}
+
+#[derive(Deserialize)]
+pub struct Message {
+    pub news: Vec<News>,
+    pub next_page_token: Option<String>,
+}
+
+pub async fn get_historical(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    query: &outgoing::news::News,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Message, Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(ALPACA_NEWS_DATA_API_URL)
+                .query(query)
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Message>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get historical news, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/incoming/order.rs

@@ -1,39 +1,44 @@
-use super::error_to_backoff;
-use crate::types::alpaca::{api::outgoing, shared::order};
+use crate::{
+    config::ALPACA_API_URL,
+    types::alpaca::{api::outgoing, shared},
+};
 use backoff::{future::retry_notify, ExponentialBackoff};
 use governor::DefaultDirectRateLimiter;
 use log::warn;
 use reqwest::{Client, Error};
 use std::time::Duration;
 
-pub use order::Order;
+pub use shared::order::Order;
 
 pub async fn get(
-    client: &Client,
-    rate_limiter: &DefaultDirectRateLimiter,
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
     query: &outgoing::order::Order,
     backoff: Option<ExponentialBackoff>,
-    api_base: &str,
 ) -> Result<Vec<Order>, Error> {
     retry_notify(
         backoff.unwrap_or_default(),
         || async {
-            rate_limiter.until_ready().await;
-            client
-                .get(&format!("https://{}.alpaca.markets/v2/orders", api_base))
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(&format!("{}/orders", *ALPACA_API_URL))
                 .query(query)
                 .send()
-                .await
-                .map_err(error_to_backoff)?
+                .await?
                 .error_for_status()
-                .map_err(error_to_backoff)?
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
                 .json::<Vec<Order>>()
                 .await
-                .map_err(error_to_backoff)
+                .map_err(backoff::Error::Permanent)
         },
         |e, duration: Duration| {
             warn!(
-                "Failed to get orders, will retry in {} seconds: {}.",
+                "Failed to get orders, will retry in {} seconds: {}",
                 duration.as_secs(),
                 e
             );

src/types/alpaca/api/incoming/position.rs

@@ -0,0 +1,145 @@
+use crate::{
+    config::ALPACA_API_URL,
+    types::alpaca::shared::{
+        self,
+        asset::{Class, Exchange},
+    },
+    utils::de,
+};
+use backoff::{future::retry_notify, ExponentialBackoff};
+use governor::DefaultDirectRateLimiter;
+use log::warn;
+use reqwest::Client;
+use serde::Deserialize;
+use serde_aux::field_attributes::deserialize_number_from_string;
+use std::time::Duration;
+use uuid::Uuid;
+
+#[derive(Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum Side {
+    Long,
+    Short,
+}
+
+impl From<Side> for shared::order::Side {
+    fn from(side: Side) -> Self {
+        match side {
+            Side::Long => Self::Buy,
+            Side::Short => Self::Sell,
+        }
+    }
+}
+
+#[derive(Deserialize)]
+pub struct Position {
+    pub asset_id: Uuid,
+    #[serde(deserialize_with = "de::add_slash_to_symbol")]
+    pub symbol: String,
+    pub exchange: Exchange,
+    pub asset_class: Class,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub avg_entry_price: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub qty: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub qty_available: f64,
+    pub side: Side,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub market_value: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub cost_basis: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub unrealized_pl: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub unrealized_plpc: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub unrealized_intraday_pl: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub unrealized_intraday_plpc: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub current_price: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub lastday_price: f64,
+    #[serde(deserialize_with = "deserialize_number_from_string")]
+    pub change_today: f64,
+    pub asset_marginable: bool,
+}
+
+pub async fn get(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Vec<Position>, reqwest::Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            alpaca_client
+                .get(&format!("{}/positions", *ALPACA_API_URL))
+                .send()
+                .await?
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Vec<Position>>()
+                .await
+                .map_err(backoff::Error::Permanent)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get positions, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}
+
+pub async fn get_by_symbol(
+    alpaca_client: &Client,
+    alpaca_rate_limiter: &DefaultDirectRateLimiter,
+    symbol: &str,
+    backoff: Option<ExponentialBackoff>,
+) -> Result<Option<Position>, reqwest::Error> {
+    retry_notify(
+        backoff.unwrap_or_default(),
+        || async {
+            alpaca_rate_limiter.until_ready().await;
+            let response = alpaca_client
+                .get(&format!("{}/positions/{}", *ALPACA_API_URL, symbol))
+                .send()
+                .await?;
+
+            if response.status() == reqwest::StatusCode::NOT_FOUND {
+                return Ok(None);
+            }
+
+            response
+                .error_for_status()
+                .map_err(|e| match e.status() {
+                    Some(reqwest::StatusCode::BAD_REQUEST | reqwest::StatusCode::FORBIDDEN) => {
+                        backoff::Error::Permanent(e)
+                    }
+                    _ => e.into(),
+                })?
+                .json::<Position>()
+                .await
+                .map_err(backoff::Error::Permanent)
+                .map(Some)
+        },
+        |e, duration: Duration| {
+            warn!(
+                "Failed to get position, will retry in {} seconds: {}",
+                duration.as_secs(),
+                e
+            );
+        },
+    )
+    .await
+}

src/types/alpaca/api/mod.rs

@@ -0,0 +1,2 @@
+pub mod incoming;
+pub mod outgoing;

src/types/alpaca/api/outgoing/bar.rs

@@ -1,14 +1,12 @@
 use crate::{
-    alpaca::bars::MAX_LIMIT,
-    types::alpaca::shared,
+    config::ALPACA_SOURCE,
+    types::alpaca::shared::{Sort, Source},
     utils::{ser, ONE_MINUTE},
 };
 use serde::Serialize;
 use std::time::Duration;
 use time::OffsetDateTime;
 
-pub use shared::{Sort, Source};
-
 #[derive(Serialize)]
 #[serde(rename_all = "snake_case")]
 #[allow(dead_code)]
@@ -55,10 +53,10 @@ impl Default for UsEquity {
             timeframe: ONE_MINUTE,
             start: None,
             end: None,
-            limit: Some(MAX_LIMIT),
+            limit: Some(10000),
             adjustment: Some(Adjustment::All),
             asof: None,
-            feed: Some(Source::Iex),
+            feed: Some(*ALPACA_SOURCE),
             currency: None,
             page_token: None,
             sort: Some(Sort::Asc),
@@ -93,7 +91,7 @@ impl Default for Crypto {
             timeframe: ONE_MINUTE,
             start: None,
             end: None,
-            limit: Some(MAX_LIMIT),
+            limit: Some(10000),
             page_token: None,
             sort: Some(Sort::Asc),
         }

src/types/alpaca/api/outgoing/mod.rs

@@ -1,4 +1,3 @@
-pub mod asset;
 pub mod bar;
 pub mod calendar;
 pub mod news;

src/types/alpaca/api/outgoing/news.rs

@@ -1,10 +1,10 @@
-use crate::{alpaca::news::MAX_LIMIT, types::alpaca::shared::Sort, utils::ser};
+use crate::{types::alpaca::shared::Sort, utils::ser};
 use serde::Serialize;
 use time::OffsetDateTime;
 
 #[derive(Serialize)]
 pub struct News {
-    #[serde(serialize_with = "ser::remove_slash_and_join_symbols")]
+    #[serde(serialize_with = "ser::remove_slash_from_pairs_join_symbols")]
     pub symbols: Vec<String>,
     #[serde(skip_serializing_if = "Option::is_none")]
     #[serde(with = "time::serde::rfc3339::option")]
@@ -30,7 +30,7 @@ impl Default for News {
             symbols: vec![],
             start: None,
             end: None,
-            limit: Some(MAX_LIMIT),
+            limit: Some(50),
             include_content: Some(true),
             exclude_contentless: Some(false),
             page_token: None,

src/types/alpaca/api/outgoing/order.rs

@@ -1,12 +1,10 @@
 use crate::{
-    types::alpaca::shared::{order, Sort},
+    types::alpaca::shared::{order::Side, Sort},
     utils::ser,
 };
 use serde::Serialize;
 use time::OffsetDateTime;
 
-pub use order::Side;
-
 #[derive(Serialize)]
 #[serde(rename_all = "snake_case")]
 #[allow(dead_code)]

src/types/alpaca/shared/asset.rs

@@ -1,7 +1,7 @@
 use crate::{impl_from_enum, types};
-use serde::{Deserialize, Serialize};
+use serde::Deserialize;
 
-#[derive(Serialize, Deserialize, Clone, Copy, Debug, PartialEq, Eq)]
+#[derive(Deserialize, Clone, Copy, Debug, PartialEq, Eq)]
 #[serde(rename_all = "snake_case")]
 pub enum Class {
     UsEquity,
@@ -10,7 +10,7 @@ pub enum Class {
 
 impl_from_enum!(types::Class, Class, UsEquity, Crypto);
 
-#[derive(Serialize, Deserialize, Clone, Copy)]
+#[derive(Deserialize)]
 #[serde(rename_all = "SCREAMING_SNAKE_CASE")]
 pub enum Exchange {
     Amex,
@@ -36,7 +36,7 @@ impl_from_enum!(
     Crypto
 );
 
-#[derive(Serialize, Deserialize, PartialEq, Eq, Clone, Copy)]
+#[derive(Deserialize)]
 #[serde(rename_all = "snake_case")]
 pub enum Status {
     Active,

src/types/alpaca/shared/news.rs

@@ -1,3 +1,4 @@
+use html_escape::decode_html_entities;
 use lazy_static::lazy_static;
 use regex::Regex;
 
@@ -6,10 +7,12 @@ lazy_static! {
     static ref RE_SPACES: Regex = Regex::new("[\\u00A0\\s]+").unwrap();
 }
 
-pub fn strip(content: &str) -> String {
+pub fn normalize_html_content(content: &str) -> String {
     let content = content.replace('\n', " ");
     let content = RE_TAGS.replace_all(&content, "");
     let content = RE_SPACES.replace_all(&content, " ");
+    let content = decode_html_entities(&content);
     let content = content.trim();
+
     content.to_string()
 }

src/types/alpaca/websocket/data/incoming/news.rs

@@ -1,5 +1,5 @@
 use crate::{
-    types::{alpaca::shared::news::strip, News},
+    types::{alpaca::shared::news::normalize_html_content, news::Sentiment, News},
     utils::de,
 };
 use serde::Deserialize;
@@ -31,11 +31,13 @@ impl From<Message> for News {
             time_created: news.time_created,
             time_updated: news.time_updated,
             symbols: news.symbols,
-            headline: strip(&news.headline),
-            author: strip(&news.author),
-            source: strip(&news.source),
-            summary: news.summary,
-            content: news.content,
+            headline: normalize_html_content(&news.headline),
+            author: normalize_html_content(&news.author),
+            source: normalize_html_content(&news.source),
+            summary: normalize_html_content(&news.summary),
+            content: normalize_html_content(&news.content),
+            sentiment: Sentiment::Neutral,
+            confidence: 0.0,
             url: news.url.unwrap_or_default(),
         }
     }

src/types/alpaca/websocket/data/mod.rs

@@ -1,7 +1,10 @@
 pub mod incoming;
 pub mod outgoing;
 
-use crate::types::alpaca::websocket;
+use crate::{
+    config::{ALPACA_API_KEY, ALPACA_API_SECRET},
+    types::alpaca::websocket,
+};
 use core::panic;
 use futures_util::{
     stream::{SplitSink, SplitStream},
@@ -14,8 +17,6 @@ use tokio_tungstenite::{tungstenite::Message, MaybeTlsStream, WebSocketStream};
 pub async fn authenticate(
     sink: &mut SplitSink<WebSocketStream<MaybeTlsStream<TcpStream>>, Message>,
     stream: &mut SplitStream<WebSocketStream<MaybeTlsStream<TcpStream>>>,
-    api_key: String,
-    api_secret: String,
 ) {
     match stream.next().await.unwrap().unwrap() {
         Message::Text(data)
@@ -31,8 +32,8 @@ pub async fn authenticate(
     sink.send(Message::Text(
         to_string(&websocket::data::outgoing::Message::Auth(
             websocket::auth::Message {
-                key: api_key,
-                secret: api_secret,
+                key: (*ALPACA_API_KEY).clone(),
+                secret: (*ALPACA_API_SECRET).clone(),
             },
         ))
         .unwrap(),

src/types/alpaca/websocket/data/outgoing/subscribe.rs

@@ -1,5 +1,4 @@
 use crate::utils::ser;
-use nonempty::NonEmpty;
 use serde::Serialize;
 
 #[derive(Serialize)]
@@ -7,14 +6,14 @@ use serde::Serialize;
 pub enum Market {
     #[serde(rename_all = "camelCase")]
     UsEquity {
-        bars: NonEmpty<String>,
-        updated_bars: NonEmpty<String>,
-        statuses: NonEmpty<String>,
+        bars: Vec<String>,
+        updated_bars: Vec<String>,
+        statuses: Vec<String>,
     },
     #[serde(rename_all = "camelCase")]
     Crypto {
-        bars: NonEmpty<String>,
-        updated_bars: NonEmpty<String>,
+        bars: Vec<String>,
+        updated_bars: Vec<String>,
     },
 }
 
@@ -24,12 +23,12 @@ pub enum Message {
     Market(Market),
     News {
         #[serde(serialize_with = "ser::remove_slash_from_symbols")]
-        news: NonEmpty<String>,
+        news: Vec<String>,
     },
 }
 
 impl Message {
-    pub fn new_market_us_equity(symbols: NonEmpty<String>) -> Self {
+    pub fn new_market_us_equity(symbols: Vec<String>) -> Self {
         Self::Market(Market::UsEquity {
             bars: symbols.clone(),
             updated_bars: symbols.clone(),
@@ -37,14 +36,14 @@ impl Message {
         })
     }
 
-    pub fn new_market_crypto(symbols: NonEmpty<String>) -> Self {
+    pub fn new_market_crypto(symbols: Vec<String>) -> Self {
         Self::Market(Market::Crypto {
             bars: symbols.clone(),
             updated_bars: symbols,
         })
     }
 
-    pub fn new_news(symbols: NonEmpty<String>) -> Self {
+    pub fn new_news(symbols: Vec<String>) -> Self {
         Self::News { news: symbols }
     }
 }

src/types/alpaca/websocket/mod.rs

@@ -0,0 +1,3 @@
+pub mod auth;
+pub mod data;
+pub mod trading;

src/types/alpaca/websocket/trading/incoming/order.rs

@@ -1,10 +1,10 @@
-use crate::types::alpaca::shared::order;
+use crate::types::alpaca::shared;
 use serde::Deserialize;
 use serde_aux::prelude::deserialize_number_from_string;
 use time::OffsetDateTime;
 use uuid::Uuid;
 
-pub use order::Order;
+pub use shared::order::Order;
 
 #[derive(Deserialize, Debug, PartialEq)]
 #[serde(rename_all = "snake_case")]

src/types/alpaca/websocket/trading/mod.rs

@@ -1,7 +1,10 @@
 pub mod incoming;
 pub mod outgoing;
 
-use crate::types::alpaca::websocket;
+use crate::{
+    config::{ALPACA_API_KEY, ALPACA_API_SECRET},
+    types::alpaca::websocket,
+};
 use core::panic;
 use futures_util::{
     stream::{SplitSink, SplitStream},
@@ -14,14 +17,12 @@ use tokio_tungstenite::{tungstenite::Message, MaybeTlsStream, WebSocketStream};
 pub async fn authenticate(
     sink: &mut SplitSink<WebSocketStream<MaybeTlsStream<TcpStream>>, Message>,
     stream: &mut SplitStream<WebSocketStream<MaybeTlsStream<TcpStream>>>,
-    api_key: String,
-    api_secret: String,
 ) {
     sink.send(Message::Text(
         to_string(&websocket::trading::outgoing::Message::Auth(
             websocket::auth::Message {
-                key: api_key,
-                secret: api_secret,
+                key: (*ALPACA_API_KEY).clone(),
+                secret: (*ALPACA_API_SECRET).clone(),
             },
         ))
         .unwrap(),