Injection does not work with Fastapi websocket endpoints

[mehmetgiritli]

With FastAPI, trying to inject to into a websocket endpoint function fails to resolve the dependency.

Consider this:

@app.websocket("/progress")
async def websocket_endpoint(websocket: WebSocket, progress: Annotated[Progress, Inject()]):
    await websocket.accept()
    await progress.get(websocket)

Returns:

    await progress.get(websocket)
          ^^^^^^^^^^^^
AttributeError: 'EmptyContainerInjectionRequest' object has no attribute 'get'

Note the object type EmptyContainerInjectionRequest.

Injecting the same into a endpoint function decorated with @app.getworks perfectly fine.

[maldoinc]

The integration currently does not autowire websocket endpoints but that should be an easy fix.

See #41.

If you can try it out and give some feedback by installing it from pip install git+https://github.com/maldoinc/wireup.git@fastapi/websocket that'd be great as I haven't tested it extensively yet.

[mehmetgiritli]

Thank you, it works fine, however I do have a related suggestion. Websocket itself is not injectable, would it be possible to make it so? In a way, similar to how FastAPI Request is handled...

[maldoinc]

I released v0.14.0 which allows injection in websocket routes. Exposing WebSocket like Request will come in a later release, for now you can just forward the connection or any data from it from the websocket endpoint.

[mehmetgiritli]

Many thanks