🚀 New issue to ag2ai/faststream by @lesnik512
📝 Bug: async api route returns 500 if broker is set by set_broker (#2588)

Hi and thank you for this great framework!

Describe the bug
async api route returns 500 if broker is set by method set_broker

How to reproduce

async def test_bug() -> None:
    app = faststream.asgi.AsgiFastStream(
        asyncapi_path="/docs/"
    )
    app.set_broker(RedisBroker())

    with TestClient(app=app) as test_client:
        response = test_client.get("/docs/")
        assert response.status_code == 500

    app2 = faststream.asgi.AsgiFastStream(
        RedisBroker(),
        asyncapi_path="/docs/"
    )

    with TestClient(app=app2) as test_client:
        response = test_client.get("/docs/")
        assert response.status_code == 200

#bug #good_first_issue

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