Change8
Error1 reports

Fix RuntimeError

in Starlette

Solution

The "RuntimeError" during response handling in Starlette often arises when attempting to use response methods like `send_denial_response` (meant for ASGI) with streaming responses. Ensure that you're using the correct response type and using applicable functions with it. If you intend to stream data, avoid response methods designed for regular ASGI responses and construct a proper `StreamingResponse`.

Related Issues

Real GitHub issues where developers encountered this error:

Timeline

First reported:Oct 29, 2025
Last reported:Oct 29, 2025

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