issue 341_Update __init__.py (#344)

### What problem does this PR solve?

Issue link:#341

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/apps/__init__.py

@@ -15,6 +15,7 @@
 #
 import logging
 import sys
+import os
 from importlib.util import module_from_spec, spec_from_file_location
 from pathlib import Path
 from flask import Blueprint, Flask, request
@@ -53,8 +54,8 @@ app.errorhandler(Exception)(server_error_response)
 #app.config["LOGIN_DISABLED"] = True
 app.config["SESSION_PERMANENT"] = False
 app.config["SESSION_TYPE"] = "filesystem"
-app.config['MAX_CONTENT_LENGTH'] = 128 * 1024 * 1024
-
+#app.config['MAX_CONTENT_LENGTH'] = 128 * 1024 * 1024
+app.config['MAX_CONTENT_LENGTH'] = os.environ.get("MAX_CONTENT_LENGTH", 128 * 1024 * 1024)
 Session(app)
 login_manager = LoginManager()
 login_manager.init_app(app)
@@ -116,4 +117,4 @@ def load_user(web_request):
 
 @app.teardown_request
 def _db_close(exc):
-    close_connection()
+    close_connection()