Added chat list endpoint

Returns all chats that are associated with a user

main.py

@@ -1,6 +1,7 @@
 from flask import Flask, jsonify, request, render_template
 from pymongo import MongoClient
 from bson.objectid import ObjectId
+from bson.json_util import dumps, loads
 from datetime import datetime
 from argon2 import PasswordHasher
 import random
@@ -80,6 +81,25 @@ def checkChatPermission(token, chatId, permission):
     else:
         return False, "Invalid Token"
 
+# Chat List Endpoint:
+# Get all the chats associated with a user
+# Arguments: token (required)
+@app.route('/api/user/chats', methods = ['GET'])
+def getUserChats():
+    # Get user auth token
+    token = request.json['token']
+    a, userId = checkUserPermission(token, True)
+    if (a == True):
+        returnedChats = list(chatCollection.find({'permissions.' + userId : "view"}))
+        chats = []
+        for doc in returnedChats:
+            if '_id' in doc and isinstance(doc['_id'], ObjectId):
+                doc['_id'] = str(doc['_id'])
+            chats.append(doc)
+
+        jsonChats = json.dumps(chats, indent=2)
+        return jsonChats
+
 # Chat Details Endpoint:
 # Get or change details about a chat using the chatId
 # Arguments: token (required), details (required), model, name