diff --git a/homeassistant/components/alexa/intent.py b/homeassistant/components/alexa/intent.py
index 58319dd44b5..a55ff7b774f 100644
--- a/homeassistant/components/alexa/intent.py
+++ b/homeassistant/components/alexa/intent.py
@@ -64,7 +64,7 @@ class AlexaIntentsView(http.HomeAssistantView):
 
     async def post(self, request: http.HomeAssistantRequest) -> Response | bytes:
         """Handle Alexa."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[http.KEY_HASS]
         message: dict[str, Any] = await request.json()
 
         _LOGGER.debug("Received Alexa request: %s", message)
diff --git a/homeassistant/components/alexa/smart_home.py b/homeassistant/components/alexa/smart_home.py
index 88f66e93fc1..dc93ec56810 100644
--- a/homeassistant/components/alexa/smart_home.py
+++ b/homeassistant/components/alexa/smart_home.py
@@ -7,8 +7,11 @@ from yarl import URL
 
 from homeassistant import core
 from homeassistant.auth.models import User
-from homeassistant.components.http import HomeAssistantRequest
-from homeassistant.components.http.view import HomeAssistantView
+from homeassistant.components.http import (
+    KEY_HASS,
+    HomeAssistantRequest,
+    HomeAssistantView,
+)
 from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET
 from homeassistant.core import Context, HomeAssistant
 from homeassistant.helpers import entity_registry as er
@@ -146,7 +149,7 @@ class SmartHomeView(HomeAssistantView):
         Lambda, which will need to forward the requests to here and pass back
         the response.
         """
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         user: User = request["hass_user"]
         message: dict[str, Any] = await request.json()
 
diff --git a/homeassistant/components/ambiclimate/config_flow.py b/homeassistant/components/ambiclimate/config_flow.py
index 598a8748412..1087f29643c 100644
--- a/homeassistant/components/ambiclimate/config_flow.py
+++ b/homeassistant/components/ambiclimate/config_flow.py
@@ -5,7 +5,7 @@ from typing import Any
 from aiohttp import web
 import ambiclimate
 
-from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
 from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET
 from homeassistant.core import HomeAssistant, callback
@@ -150,7 +150,7 @@ class AmbiclimateAuthCallbackView(HomeAssistantView):
         """Receive authorization token."""
         if (code := request.query.get("code")) is None:
             return "No code"
-        hass = request.app["hass"]
+        hass = request.app[KEY_HASS]
         hass.async_create_task(
             hass.config_entries.flow.async_init(
                 DOMAIN, context={"source": "code"}, data=code
diff --git a/homeassistant/components/api/__init__.py b/homeassistant/components/api/__init__.py
index 01a84cf606a..a6b899d01ec 100644
--- a/homeassistant/components/api/__init__.py
+++ b/homeassistant/components/api/__init__.py
@@ -117,7 +117,7 @@ class APICoreStateView(HomeAssistantView):
         Home Assistant core is running. Its primary use case is for supervisor
         to check if Home Assistant is running.
         """
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         return self.json({"state": hass.state.value})
 
 
@@ -130,7 +130,7 @@ class APIEventStream(HomeAssistantView):
     @require_admin
     async def get(self, request: web.Request) -> web.StreamResponse:
         """Provide a streaming interface for the event bus."""
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         stop_obj = object()
         to_write: asyncio.Queue[object | str] = asyncio.Queue()
 
@@ -197,8 +197,7 @@ class APIConfigView(HomeAssistantView):
     @ha.callback
     def get(self, request: web.Request) -> web.Response:
         """Get current configuration."""
-        hass: HomeAssistant = request.app[KEY_HASS]
-        return self.json(hass.config.as_dict())
+        return self.json(request.app[KEY_HASS].config.as_dict())
 
 
 class APIStatesView(HomeAssistantView):
@@ -211,7 +210,7 @@ class APIStatesView(HomeAssistantView):
     def get(self, request: web.Request) -> web.Response:
         """Get current states."""
         user: User = request[KEY_HASS_USER]
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         if user.is_admin:
             states = (state.as_dict_json for state in hass.states.async_all())
         else:
@@ -240,7 +239,7 @@ class APIEntityStateView(HomeAssistantView):
     def get(self, request: web.Request, entity_id: str) -> web.Response:
         """Retrieve state of entity."""
         user: User = request[KEY_HASS_USER]
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         if not user.permissions.check_entity(entity_id, POLICY_READ):
             raise Unauthorized(entity_id=entity_id)
 
@@ -256,7 +255,7 @@ class APIEntityStateView(HomeAssistantView):
         user: User = request[KEY_HASS_USER]
         if not user.is_admin:
             raise Unauthorized(entity_id=entity_id)
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         try:
             data = await request.json()
         except ValueError:
@@ -296,8 +295,7 @@ class APIEntityStateView(HomeAssistantView):
         """Remove entity."""
         if not request[KEY_HASS_USER].is_admin:
             raise Unauthorized(entity_id=entity_id)
-        hass: HomeAssistant = request.app[KEY_HASS]
-        if hass.states.async_remove(entity_id):
+        if request.app[KEY_HASS].states.async_remove(entity_id):
             return self.json_message("Entity removed.")
         return self.json_message("Entity not found.", HTTPStatus.NOT_FOUND)
 
@@ -311,8 +309,7 @@ class APIEventListenersView(HomeAssistantView):
     @ha.callback
     def get(self, request: web.Request) -> web.Response:
         """Get event listeners."""
-        hass: HomeAssistant = request.app[KEY_HASS]
-        return self.json(async_events_json(hass))
+        return self.json(async_events_json(request.app[KEY_HASS]))
 
 
 class APIEventView(HomeAssistantView):
@@ -346,8 +343,7 @@ class APIEventView(HomeAssistantView):
                 if state:
                     event_data[key] = state
 
-        hass: HomeAssistant = request.app[KEY_HASS]
-        hass.bus.async_fire(
+        request.app[KEY_HASS].bus.async_fire(
             event_type, event_data, ha.EventOrigin.remote, self.context(request)
         )
 
@@ -362,8 +358,7 @@ class APIServicesView(HomeAssistantView):
 
     async def get(self, request: web.Request) -> web.Response:
         """Get registered services."""
-        hass: HomeAssistant = request.app[KEY_HASS]
-        services = await async_services_json(hass)
+        services = await async_services_json(request.app[KEY_HASS])
         return self.json(services)
 
 
@@ -380,7 +375,7 @@ class APIDomainServicesView(HomeAssistantView):
 
         Returns a list of changed states.
         """
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         body = await request.text()
         try:
             data = json_loads(body) if body else None
@@ -433,8 +428,7 @@ class APIComponentsView(HomeAssistantView):
     @ha.callback
     def get(self, request: web.Request) -> web.Response:
         """Get current loaded components."""
-        hass: HomeAssistant = request.app[KEY_HASS]
-        return self.json(list(hass.config.components))
+        return self.json(request.app[KEY_HASS].config.components)
 
 
 @lru_cache
@@ -471,7 +465,7 @@ class APIErrorLog(HomeAssistantView):
     @require_admin
     async def get(self, request: web.Request) -> web.FileResponse:
         """Retrieve API error log."""
-        hass: HomeAssistant = request.app[KEY_HASS]
+        hass = request.app[KEY_HASS]
         response = web.FileResponse(hass.data[DATA_LOGGING])
         response.enable_compression()
         return response
diff --git a/homeassistant/components/backup/http.py b/homeassistant/components/backup/http.py
index a6a7a2346e4..a2aa7026445 100644
--- a/homeassistant/components/backup/http.py
+++ b/homeassistant/components/backup/http.py
@@ -6,7 +6,7 @@ from http import HTTPStatus
 from aiohttp.hdrs import CONTENT_DISPOSITION
 from aiohttp.web import FileResponse, Request, Response
 
-from homeassistant.components.http.view import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.util import slugify
 
@@ -35,7 +35,7 @@ class DownloadBackupView(HomeAssistantView):
         if not request["hass_user"].is_admin:
             return Response(status=HTTPStatus.UNAUTHORIZED)
 
-        manager: BackupManager = request.app["hass"].data[DOMAIN]
+        manager: BackupManager = request.app[KEY_HASS].data[DOMAIN]
         backup = await manager.get_backup(slug)
 
         if backup is None or not backup.path.exists():
diff --git a/homeassistant/components/calendar/__init__.py b/homeassistant/components/calendar/__init__.py
index bef0e2fc09f..aff33dd9c31 100644
--- a/homeassistant/components/calendar/__init__.py
+++ b/homeassistant/components/calendar/__init__.py
@@ -652,7 +652,7 @@ class CalendarEventView(http.HomeAssistantView):
 
         try:
             calendar_event_list = await entity.async_get_events(
-                request.app["hass"],
+                request.app[http.KEY_HASS],
                 dt_util.as_local(start_date),
                 dt_util.as_local(end_date),
             )
@@ -682,11 +682,12 @@ class CalendarListView(http.HomeAssistantView):
 
     async def get(self, request: web.Request) -> web.Response:
         """Retrieve calendar list."""
-        hass = request.app["hass"]
+        hass = request.app[http.KEY_HASS]
         calendar_list: list[dict[str, str]] = []
 
         for entity in self.component.entities:
             state = hass.states.get(entity.entity_id)
+            assert state
             calendar_list.append({"name": state.name, "entity_id": entity.entity_id})
 
         return self.json(sorted(calendar_list, key=lambda x: cast(str, x["name"])))
diff --git a/homeassistant/components/cloud/http_api.py b/homeassistant/components/cloud/http_api.py
index 4fd9d5c0301..f5cbb287ef1 100644
--- a/homeassistant/components/cloud/http_api.py
+++ b/homeassistant/components/cloud/http_api.py
@@ -25,7 +25,7 @@ from homeassistant.components.alexa import (
 )
 from homeassistant.components.google_assistant import helpers as google_helpers
 from homeassistant.components.homeassistant import exposed_entities
-from homeassistant.components.http import HomeAssistantView, require_admin
+from homeassistant.components.http import KEY_HASS, HomeAssistantView, require_admin
 from homeassistant.components.http.data_validator import RequestDataValidator
 from homeassistant.const import CLOUD_NEVER_EXPOSED_ENTITIES
 from homeassistant.core import HomeAssistant, callback
@@ -197,7 +197,7 @@ class GoogleActionsSyncView(HomeAssistantView):
     @_handle_cloud_errors
     async def post(self, request: web.Request) -> web.Response:
         """Trigger a Google Actions sync."""
-        hass = request.app["hass"]
+        hass = request.app[KEY_HASS]
         cloud: Cloud[CloudClient] = hass.data[DOMAIN]
         gconf = await cloud.client.get_google_config()
         status = await gconf.async_sync_entities(gconf.agent_user_id)
@@ -217,7 +217,7 @@ class CloudLoginView(HomeAssistantView):
     )
     async def post(self, request: web.Request, data: dict[str, Any]) -> web.Response:
         """Handle login request."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         cloud: Cloud[CloudClient] = hass.data[DOMAIN]
         await cloud.login(data["email"], data["password"])
 
@@ -235,7 +235,7 @@ class CloudLogoutView(HomeAssistantView):
     @_handle_cloud_errors
     async def post(self, request: web.Request) -> web.Response:
         """Handle logout request."""
-        hass = request.app["hass"]
+        hass = request.app[KEY_HASS]
         cloud: Cloud[CloudClient] = hass.data[DOMAIN]
 
         async with asyncio.timeout(REQUEST_TIMEOUT):
@@ -262,7 +262,7 @@ class CloudRegisterView(HomeAssistantView):
     )
     async def post(self, request: web.Request, data: dict[str, Any]) -> web.Response:
         """Handle registration request."""
-        hass = request.app["hass"]
+        hass = request.app[KEY_HASS]
         cloud: Cloud[CloudClient] = hass.data[DOMAIN]
 
         client_metadata = None
@@ -299,7 +299,7 @@ class CloudResendConfirmView(HomeAssistantView):
     @RequestDataValidator(vol.Schema({vol.Required("email"): str}))
     async def post(self, request: web.Request, data: dict[str, Any]) -> web.Response:
         """Handle resending confirm email code request."""
-        hass = request.app["hass"]
+        hass = request.app[KEY_HASS]
         cloud: Cloud[CloudClient] = hass.data[DOMAIN]
 
         async with asyncio.timeout(REQUEST_TIMEOUT):
@@ -319,7 +319,7 @@ class CloudForgotPasswordView(HomeAssistantView):
     @RequestDataValidator(vol.Schema({vol.Required("email"): str}))
     async def post(self, request: web.Request, data: dict[str, Any]) -> web.Response:
         """Handle forgot password request."""
-        hass = request.app["hass"]
+        hass = request.app[KEY_HASS]
         cloud: Cloud[CloudClient] = hass.data[DOMAIN]
 
         async with asyncio.timeout(REQUEST_TIMEOUT):
diff --git a/homeassistant/components/config/config_entries.py b/homeassistant/components/config/config_entries.py
index 48665645c6f..eb7b1786671 100644
--- a/homeassistant/components/config/config_entries.py
+++ b/homeassistant/components/config/config_entries.py
@@ -12,7 +12,7 @@ import voluptuous as vol
 from homeassistant import config_entries, data_entry_flow
 from homeassistant.auth.permissions.const import CAT_CONFIG_ENTRIES, POLICY_EDIT
 from homeassistant.components import websocket_api
-from homeassistant.components.http import HomeAssistantView, require_admin
+from homeassistant.components.http import KEY_HASS, HomeAssistantView, require_admin
 from homeassistant.components.http.data_validator import RequestDataValidator
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.exceptions import DependencyError, Unauthorized
@@ -64,7 +64,7 @@ class ConfigManagerEntryIndexView(HomeAssistantView):
 
     async def get(self, request: web.Request) -> web.Response:
         """List available config entries."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         domain = None
         if "domain" in request.query:
             domain = request.query["domain"]
@@ -88,7 +88,7 @@ class ConfigManagerEntryResourceView(HomeAssistantView):
         if not request["hass_user"].is_admin:
             raise Unauthorized(config_entry_id=entry_id, permission="remove")
 
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
 
         try:
             result = await hass.config_entries.async_remove(entry_id)
@@ -109,7 +109,7 @@ class ConfigManagerEntryResourceReloadView(HomeAssistantView):
         if not request["hass_user"].is_admin:
             raise Unauthorized(config_entry_id=entry_id, permission="remove")
 
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         entry = hass.config_entries.async_get_entry(entry_id)
         if not entry:
             return self.json_message("Invalid entry specified", HTTPStatus.NOT_FOUND)
@@ -235,7 +235,7 @@ class ConfigManagerAvailableFlowView(HomeAssistantView):
 
     async def get(self, request: web.Request) -> web.Response:
         """List available flow handlers."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         kwargs: dict[str, Any] = {}
         if "type" in request.query:
             kwargs["type_filter"] = request.query["type"]
diff --git a/homeassistant/components/config/core.py b/homeassistant/components/config/core.py
index c3e070a3751..d35b00654b7 100644
--- a/homeassistant/components/config/core.py
+++ b/homeassistant/components/config/core.py
@@ -7,7 +7,7 @@ from aiohttp import web
 import voluptuous as vol
 
 from homeassistant.components import websocket_api
-from homeassistant.components.http import HomeAssistantView, require_admin
+from homeassistant.components.http import KEY_HASS, HomeAssistantView, require_admin
 from homeassistant.components.sensor import async_update_suggested_units
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import check_config, config_validation as cv
@@ -34,7 +34,7 @@ class CheckConfigView(HomeAssistantView):
     async def post(self, request: web.Request) -> web.Response:
         """Validate configuration and return results."""
 
-        res = await check_config.async_check_ha_config_file(request.app["hass"])
+        res = await check_config.async_check_ha_config_file(request.app[KEY_HASS])
 
         state = "invalid" if res.errors else "valid"
 
diff --git a/homeassistant/components/config/view.py b/homeassistant/components/config/view.py
index cf24074bda9..e3497ab91f1 100644
--- a/homeassistant/components/config/view.py
+++ b/homeassistant/components/config/view.py
@@ -10,7 +10,7 @@ from typing import Any, Generic, TypeVar, cast
 from aiohttp import web
 import voluptuous as vol
 
-from homeassistant.components.http import HomeAssistantView, require_admin
+from homeassistant.components.http import KEY_HASS, HomeAssistantView, require_admin
 from homeassistant.const import CONF_ID
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import HomeAssistantError
@@ -80,7 +80,7 @@ class BaseEditConfigView(HomeAssistantView, Generic[_DataT]):
     @require_admin
     async def get(self, request: web.Request, config_key: str) -> web.Response:
         """Fetch device specific config."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         async with self.mutation_lock:
             current = await self.read_config(hass)
             value = self._get_value(hass, current, config_key)
@@ -103,7 +103,7 @@ class BaseEditConfigView(HomeAssistantView, Generic[_DataT]):
         except vol.Invalid as err:
             return self.json_message(f"Key malformed: {err}", HTTPStatus.BAD_REQUEST)
 
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
 
         try:
             # We just validate, we don't store that data because
@@ -135,7 +135,7 @@ class BaseEditConfigView(HomeAssistantView, Generic[_DataT]):
     @require_admin
     async def delete(self, request: web.Request, config_key: str) -> web.Response:
         """Remove an entry."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         async with self.mutation_lock:
             current = await self.read_config(hass)
             value = self._get_value(hass, current, config_key)
diff --git a/homeassistant/components/conversation/__init__.py b/homeassistant/components/conversation/__init__.py
index 09b0e8e2310..38327e0108f 100644
--- a/homeassistant/components/conversation/__init__.py
+++ b/homeassistant/components/conversation/__init__.py
@@ -484,7 +484,7 @@ class ConversationProcessView(http.HomeAssistantView):
     )
     async def post(self, request: web.Request, data: dict[str, str]) -> web.Response:
         """Send a request for processing."""
-        hass = request.app["hass"]
+        hass = request.app[http.KEY_HASS]
 
         result = await async_converse(
             hass,
diff --git a/homeassistant/components/diagnostics/__init__.py b/homeassistant/components/diagnostics/__init__.py
index 679efd137ce..565fc2112b7 100644
--- a/homeassistant/components/diagnostics/__init__.py
+++ b/homeassistant/components/diagnostics/__init__.py
@@ -232,7 +232,7 @@ class DownloadDiagnosticsView(http.HomeAssistantView):
 
         device_diagnostics = sub_type is not None
 
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[http.KEY_HASS]
 
         if (config_entry := hass.config_entries.async_get_entry(d_id)) is None:
             return web.Response(status=HTTPStatus.NOT_FOUND)
diff --git a/homeassistant/components/doorbird/view.py b/homeassistant/components/doorbird/view.py
index 396db79bf4c..b9d03288e26 100644
--- a/homeassistant/components/doorbird/view.py
+++ b/homeassistant/components/doorbird/view.py
@@ -5,8 +5,7 @@ from http import HTTPStatus
 
 from aiohttp import web
 
-from homeassistant.components.http import HomeAssistantView
-from homeassistant.core import HomeAssistant
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 
 from .const import API_URL, DOMAIN
 from .device import async_reset_device_favorites
@@ -23,7 +22,7 @@ class DoorBirdRequestView(HomeAssistantView):
 
     async def get(self, request: web.Request, event: str) -> web.Response:
         """Respond to requests from the device."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         token: str | None = request.query.get("token")
         if (
             token is None
diff --git a/homeassistant/components/emulated_hue/__init__.py b/homeassistant/components/emulated_hue/__init__.py
index b5b51eb4361..ed24fe29c60 100644
--- a/homeassistant/components/emulated_hue/__init__.py
+++ b/homeassistant/components/emulated_hue/__init__.py
@@ -6,6 +6,7 @@ import logging
 from aiohttp import web
 import voluptuous as vol
 
+from homeassistant.components.http import KEY_HASS
 from homeassistant.components.network import async_get_source_ip
 from homeassistant.const import (
     CONF_ENTITIES,
@@ -130,7 +131,7 @@ async def async_setup(hass: HomeAssistant, yaml_config: ConfigType) -> bool:
     await config.async_setup()
 
     app = web.Application()
-    app["hass"] = hass
+    app[KEY_HASS] = hass
 
     # We misunderstood the startup signal. You're not allowed to change
     # anything during startup. Temp workaround.
diff --git a/homeassistant/components/emulated_hue/hue_api.py b/homeassistant/components/emulated_hue/hue_api.py
index 873f446aad8..c1f853be80d 100644
--- a/homeassistant/components/emulated_hue/hue_api.py
+++ b/homeassistant/components/emulated_hue/hue_api.py
@@ -34,7 +34,7 @@ from homeassistant.components.cover import (
     CoverEntityFeature,
 )
 from homeassistant.components.fan import ATTR_PERCENTAGE, FanEntityFeature
-from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.components.humidifier import ATTR_HUMIDITY, SERVICE_SET_HUMIDITY
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS,
@@ -319,7 +319,7 @@ class HueOneLightStateView(HomeAssistantView):
         if not _remote_is_allowed(request.remote):
             return self.json_message("Only local IPs allowed", HTTPStatus.UNAUTHORIZED)
 
-        hass: core.HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         hass_entity_id = self.config.number_to_entity_id(entity_id)
 
         if hass_entity_id is None:
@@ -362,7 +362,7 @@ class HueOneLightChangeView(HomeAssistantView):
             return self.json_message("Only local IPs allowed", HTTPStatus.UNAUTHORIZED)
 
         config = self.config
-        hass: core.HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         entity_id = config.number_to_entity_id(entity_number)
 
         if entity_id is None:
@@ -885,7 +885,7 @@ def create_config_model(config: Config, request: web.Request) -> dict[str, Any]:
 
 def create_list_of_entities(config: Config, request: web.Request) -> dict[str, Any]:
     """Create a list of all entities."""
-    hass: core.HomeAssistant = request.app["hass"]
+    hass = request.app[KEY_HASS]
     return {
         config.entity_id_to_number(entity_id): state_to_json(config, state)
         for entity_id in config.get_exposed_entity_ids()
diff --git a/homeassistant/components/file_upload/__init__.py b/homeassistant/components/file_upload/__init__.py
index 3a76bc8ea5e..85dacb388c0 100644
--- a/homeassistant/components/file_upload/__init__.py
+++ b/homeassistant/components/file_upload/__init__.py
@@ -13,7 +13,7 @@ import tempfile
 from aiohttp import BodyPartReader, web
 import voluptuous as vol
 
-from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.components.http.data_validator import RequestDataValidator
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 from homeassistant.core import Event, HomeAssistant, callback
@@ -145,7 +145,7 @@ class FileUploadView(HomeAssistantView):
         except ValueError as err:
             raise web.HTTPBadRequest from err
 
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
         file_id = ulid_hex()
 
         if DOMAIN not in hass.data:
@@ -199,7 +199,7 @@ class FileUploadView(HomeAssistantView):
     @RequestDataValidator({vol.Required("file_id"): str})
     async def delete(self, request: web.Request, data: dict[str, str]) -> web.Response:
         """Delete a file."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
 
         if DOMAIN not in hass.data:
             raise web.HTTPNotFound()
diff --git a/homeassistant/components/foursquare/__init__.py b/homeassistant/components/foursquare/__init__.py
index fcf1434c2c2..6511dbf4478 100644
--- a/homeassistant/components/foursquare/__init__.py
+++ b/homeassistant/components/foursquare/__init__.py
@@ -5,7 +5,7 @@ import logging
 import requests
 import voluptuous as vol
 
-from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.const import CONF_ACCESS_TOKEN
 from homeassistant.core import HomeAssistant, ServiceCall
 import homeassistant.helpers.config_validation as cv
@@ -105,4 +105,4 @@ class FoursquarePushReceiver(HomeAssistantView):
             )
             return self.json_message("Incorrect secret", HTTPStatus.BAD_REQUEST)
 
-        request.app["hass"].bus.async_fire(EVENT_PUSH, data)
+        request.app[KEY_HASS].bus.async_fire(EVENT_PUSH, data)
diff --git a/homeassistant/components/frontend/__init__.py b/homeassistant/components/frontend/__init__.py
index 48d5bcb0b05..eff69e9d6f0 100644
--- a/homeassistant/components/frontend/__init__.py
+++ b/homeassistant/components/frontend/__init__.py
@@ -14,7 +14,7 @@ import voluptuous as vol
 from yarl import URL
 
 from homeassistant.components import onboarding, websocket_api
-from homeassistant.components.http.view import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.components.websocket_api.connection import ActiveConnection
 from homeassistant.config import async_hass_config_yaml
 from homeassistant.const import (
@@ -595,7 +595,7 @@ class IndexView(web_urldispatcher.AbstractResource):
 
     async def get(self, request: web.Request) -> web.Response:
         """Serve the index page for panel pages."""
-        hass: HomeAssistant = request.app["hass"]
+        hass = request.app[KEY_HASS]
 
         if not onboarding.async_is_onboarded(hass):
             return web.Response(status=302, headers={"location": "/onboarding.html"})
diff --git a/homeassistant/components/google_assistant/http.py b/homeassistant/components/google_assistant/http.py
index 0d75a1bede7..20e9c3bf842 100644
--- a/homeassistant/components/google_assistant/http.py
+++ b/homeassistant/components/google_assistant/http.py
@@ -12,7 +12,7 @@ from aiohttp.web import Request, Response
 import jwt
 
 from homeassistant.components import webhook
-from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.const import CLOUD_NEVER_EXPOSED_ENTITIES
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.exceptions import HomeAssistantError
@@ -380,7 +380,7 @@ class GoogleAssistantView(HomeAssistantView):
         """Handle Google Assistant requests."""
         message: dict = await request.json()
         result = await async_handle_message(
-            request.app["hass"],
+            request.app[KEY_HASS],
             self.config,
             request["hass_user"].id,
             request["hass_user"].id,
diff --git a/tests/components/ambiclimate/test_config_flow.py b/tests/components/ambiclimate/test_config_flow.py
index 162bc43c6c0..9de287ea369 100644
--- a/tests/components/ambiclimate/test_config_flow.py
+++ b/tests/components/ambiclimate/test_config_flow.py
@@ -6,6 +6,7 @@ import pytest
 
 from homeassistant import config_entries, data_entry_flow
 from homeassistant.components.ambiclimate import config_flow
+from homeassistant.components.http import KEY_HASS
 from homeassistant.config import async_process_ha_core_config
 from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET
 from homeassistant.core import HomeAssistant
@@ -127,11 +128,11 @@ async def test_view(hass: HomeAssistant) -> None:
     request = aiohttp.MockRequest(
         b"", query_string="code=test_code", mock_source="test"
     )
-    request.app = {"hass": hass}
+    request.app = {KEY_HASS: hass}
     view = config_flow.AmbiclimateAuthCallbackView()
     assert await view.get(request) == "OK!"
 
     request = aiohttp.MockRequest(b"", query_string="", mock_source="test")
-    request.app = {"hass": hass}
+    request.app = {KEY_HASS: hass}
     view = config_flow.AmbiclimateAuthCallbackView()
     assert await view.get(request) == "No code"