Fixed API for backward compatibility.

Author: s3rius

taskiq_fastapi/initializator.py

@@ -1,4 +1,4 @@
-from typing import Any, Awaitable, Callable, Mapping, Union
+from typing import Any, Awaitable, Callable, Mapping, Optional, Union
 
 from fastapi import FastAPI, Request
 from starlette.requests import HTTPConnection
@@ -39,7 +39,7 @@ async def startup(state: TaskiqState) -> None:
         await app.router.startup()
         state.lf_ctx = app.router.lifespan_context(app)
         asgi_state = await state.lf_ctx.__aenter__()
-        populate_dependency_context(broker, app, asgi_state or {})
+        populate_dependency_context(broker, app, asgi_state)
 
     return startup
 
@@ -94,7 +94,7 @@ def init(broker: AsyncBroker, app_or_path: Union[str, FastAPI]) -> None:
 def populate_dependency_context(
     broker: AsyncBroker,
     app: FastAPI,
-    asgi_state: Mapping[str, Any],
+    asgi_state: Optional[Mapping[str, Any]] = None,
 ) -> None:
     """
     Populate dependency context.
@@ -108,6 +108,7 @@ def populate_dependency_context(
     :param app: current application.
     :param kwargs: additional state args.
     """
+    asgi_state = asgi_state or {}
     broker.dependency_overrides.update(
         {
             Request: lambda: Request(