uvicorn VS hypercorn

Uvicorn - An ASGI web server implementation for Python

You might find some recommendations to use hypercorn rather than uvicorn, I tried that initially but I couldn't resolve an issue with socket permission, I raised it as a bug in their GitHub repo.

FastAPI & Uvicorn

This tells Heroku to run uvicorn, which is a web server implementation in Python.

FastAPI uses Uvicorn, an ASGI (Asynchronous Server Gateway Interface) web server implementation for Python.

Now, let’s run our FastAPI application using Uvicorn: uvicorn main:app --reload

Uvicorn + Starlette 8k requests/s

I switched to Hypercorn because Uvicorn currently supports HTTP/1.1 and WebSockets as mentioned at https://www.uvicorn.org

This will set up Chroma and run it as a server with uvicorn, making port 8000 accessible outside the net docker network. The command also mounts a persistent docker volume for Chroma's database, found at chroma/chroma from your project's root.

In addition [Hypercorn](https://github.com/pgjones/hypercorn) (a ASGI and WSGI) also does not use gunicorn, having migrated many years ago.

You might find some recommendations to use hypercorn rather than uvicorn, I tried that initially but I couldn't resolve an issue with socket permission, I raised it as a bug in their GitHub repo.

for those wishing to use http3 with a Python web framework, the ASGI hypercorn[1] currently supports it.

made a Django example last week with a sample client based on the examples from aioquic[2]: https://github.com/djstein/django-http3-example

this example also includes the first pass at async Django REST Framework using adrift[3] based on these GitHub issues:

- https://github.com/encode/django-rest-framework/pull/8617

- https://github.com/encode/django-rest-framework/issues/8496

sources

[1]: https://github.com/pgjones/hypercorn

[2]: https://github.com/aiortc/aioquic

[2]: https://github.com/em1208/adrf

what about hyopercorn ? looks like it supports http3

By using Hypercorn like so: