add use_connection hook

Author: rmorshea

src/idom/backend/flask.py

@@ -22,6 +22,7 @@
 from flask_cors import CORS
 from flask_sock import Sock
 from simple_websocket import Server as WebSocket
+from werkzeug.local import LocalProxy
 from werkzeug.serving import BaseWSGIServer, make_server
 
 import idom

src/idom/backend/sanic.py

@@ -10,6 +10,7 @@
 
 from sanic import Blueprint, Sanic, request, response
 from sanic.config import Config
+from sanic.models.asgi import ASGIScope
 from sanic.server.websockets.connection import WebSocketConnection
 from sanic_cors import CORS
 

src/idom/backend/types.py

@@ -51,7 +51,7 @@ class Connection(Generic[_Carrier]):
     """The current location (URL)"""
 
     carrier: _Carrier
-    """How the connection is mediated. For example, a websocket.
+    """How the connection is mediated. For example, a request or websocket.
 
     This typically depends on the backend implementation.
     """

tests/test_backend/test_common.py

@@ -1,4 +1,4 @@
-from typing import MutableMapping
+from typing import MutableMapping, get_type_hints
 
 import pytest