Update for feedback by @madsmtm

1. Add ThreadLocation Enum in models.
2. avoid using build-in name "type" as parameter name
3. replace ValueError with FBchatUserError

thanks to @madsmtm

fbchat/client.py

@@ -748,12 +748,12 @@ class Client(object):
 
         return list(reversed([graphql_to_message(message) for message in j['message_thread']['messages']['nodes']]))
 
-    def fetchThreadList(self, offset=0, limit=20, type='inbox'):
+    def fetchThreadList(self, offset=0, limit=20, thread_location=ThreadLocation.INBOX):
         """Get thread list of your facebook account
 
         :param offset: The offset, from where in the list to recieve threads from
         :param limit: Max. number of threads to retrieve. Capped at 20
-        :param type: (optional) "inbox", "pending", "archived"
+        :param thread_location: models.ThreadLocation: INBOX, PENDING, ARCHIVED or OTHER
         :type offset: int
         :type limit: int
         :return: :class:`models.Thread` objects
@@ -764,16 +764,15 @@ class Client(object):
         if limit > 20 or limit < 1:
             raise FBchatUserError('`limit` should be between 1 and 20')
 
-        if type in ['inbox', 'pending', 'archived']:
-            if type == 'archived':
-                type = 'action:archived'
+        if thread_location in ThreadLocation:
+            loc_str = thread_location.value
         else:
-            raise ValueError('thread_type must be "inbox", "pending" or "archived"')
+            raise FBchatUserError('"thread_location" must be a value of ThreadLocation')
 
         data = {
             'client' : self.client,
-            type + '[offset]' : offset,
-            type + '[limit]' : limit,
+            loc_str + '[offset]' : offset,
+            loc_str + '[limit]' : limit,
         }
 
         j = self._post(self.req_url.THREADS, data, fix_request=True, as_json=True)

fbchat/models.py

@@ -193,6 +193,13 @@ class ThreadType(Enum):
     GROUP = 2
     PAGE = 3
 
+class ThreadLocation(Enum):
+    """Used to specify where a thread is located (inbox, pending, archived, other)."""
+    INBOX = 'inbox'
+    PENDING = 'pending'
+    ARCHIVED = 'action:archived'
+    OTHER = 'other'
+
 class TypingStatus(Enum):
     """Used to specify whether the user is typing or has stopped typing"""
     STOPPED = 0