changes related to aiohttp update

app/main.py

@@ -1,4 +1,3 @@
-import asyncio
 import pathlib
 import logging
 
@@ -41,34 +40,35 @@ class Indexer:
                         secret_key=SECRET_KEY.encode(),
                         max_age=60 * SESSION_COOKIE_LIFETIME,
                         cookie_name="TG_INDEX_SESSION",
+                        secure=True,
                     )
                 )
             )
 
         middlewares.append(middleware_factory())
         self.server = web.Application(middlewares=middlewares)
-        self.loop = asyncio.get_event_loop()
+
+        self.server.on_startup.append(self.startup)
+        self.server.on_cleanup.append(self.cleanup)
+
         self.tg_client = Client(session_string, api_id, api_hash)
 
         self.server["is_authenticated"] = authenticated
         self.server["username"] = username
         self.server["password"] = password
 
-    async def startup(self):
+    async def startup(self, server: web.Application):
         await self.tg_client.start()
         log.debug("telegram client started!")
 
-        await setup_routes(self.server, Views(self.tg_client))
+        await setup_routes(server, Views(self.tg_client))
 
         loader = jinja2.FileSystemLoader(str(self.TEMPLATES_ROOT))
-        aiohttp_jinja2.setup(self.server, loader=loader)
+        aiohttp_jinja2.setup(server, loader=loader)
 
-        self.server.on_cleanup.append(self.cleanup)
-
-    async def cleanup(self, *args):
+    async def cleanup(self, server: web.Application):
         await self.tg_client.disconnect()
         log.debug("telegram client disconnected!")
 
     def run(self):
-        self.loop.run_until_complete(self.startup())
         web.run_app(self.server, host=host, port=port)