https://github.com/barabum0/starlette-ras-handle

This library patches starlette, so you can handle "RuntimeError: Caught handled exception, but response already started." exception
https://github.com/barabum0/starlette-ras-handle

fastapi patch python starlette

Last synced: 4 months ago
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This library patches starlette, so you can handle "RuntimeError: Caught handled exception, but response already started." exception

• Host: GitHub
• URL: https://github.com/barabum0/starlette-ras-handle
• Owner: barabum0
• License: mit
• Created: 2024-04-14T13:55:10.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2025-04-20T17:22:40.000Z (about 1 year ago)
• Last Synced: 2025-05-21T11:48:41.444Z (about 1 year ago)
• Topics: fastapi, patch, python, starlette
• Language: Python
• Homepage: https://pypi.org/project/starlette-ras-handle/
• Size: 41 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          


# Starlette RAS-handler

[![Supported Python versions](https://img.shields.io/pypi/pyversions/starlette-ras-handle.svg?logo=python&logoColor=FFE873)](https://pypi.org/project/starlette-ras-handle)

[![PyPI version](https://img.shields.io/pypi/v/starlette-ras-handle.svg?logo=pypi&logoColor=FFE873)](https://pypi.org/project/starlette-ras-handle)

[![PyPI downloads](https://img.shields.io/pypi/dm/starlette-ras-handle.svg)](https://pypi.org/project/starlette-ras-handle)



This library adds the ability to handle `RuntimeError: Caught handled exception, but response already started.` error, so you can silent it, or do whatever you want

## Installation 📥

```shell

python -m pip install -U starlette-ras-handle 

```

## Usage 🛠️

1. Define an async function that accepts `(Exception, Request | WebSocket)` and returns `None`

    ```python

    async def print_handler(exc: Exception, request: Request | WebSocket) -> None:

        print("Caught", exc)

    ```

2. Patch!

    ```python

    from handler import print_handler

    

    from starlette_ras_handle import handle_starlette_ras

    handle_starlette_ras(print_handler)

    

    # other imports...

    ```

   

**IMPORTANT:** If you want the patch to work properly, you should use it before you import anything, related to `starlette` (e.g. `FastAPI`)

You can check an example in `/examples/example.py`

## Troubleshooting 🚨

If you encounter issues or have queries, feel free to check our [Issues section](https://github.com/barabum0/starlette-ras-handle/issues) on GitHub.

## Contribution 🤝

Contributions are welcome. Please fork the repository, make your changes, and submit a pull request.