Python asgi support

[kudlatyamroth]

Feature request

Question 1: What is the problem?

• What is the expected behavior? Possibility to run asgi applications like Django asgi, FastApi in asgi mode.

• What is the actual behavior? Now we can run only wsgi applications with passenger_wsgi

• How can we reproduce it? Please try to provide a sample application (or Virtual Machine) demonstrating the issue. Otherwise, if we can't reproduce it, we might have to ask you a number of followup questions or run certain commands to try and figure out the problem.

from fastapi import FastAPI

app = FastAPI()

@app.get("/")
async def read_root():
    return {"Hello": "World"}

this is whole sample, FastApi not come with wsgi, only have asgi module

Question 2: Passenger version and integration mode:

6.0.4/nginx

Question 3: OS or Linux distro, platform (including version):

Manjaro x86_64

Question 4: Passenger installation method:

Your answer: [ ] RubyGems + Gemfile [ ] RubyGems, no Gemfile [ ] Phusion APT repo [ ] Phusion YUM repo [ ] OS X Homebrew [x] source tarball [ ] Other, please specify:

Question 5: Your app's programming language (including any version managers) and framework (including versions):

Python 3.8 FastApi 0.54.1

Question 6: Are you using a PaaS and/or containerization? If so which one?

no

[CamJN]

Thanks for the suggestion!

[ionescu77]

Hello, happy with passenger (mod_passenger apache) workflow. I am also curious about python async / django asgi support.

[ionescu77]

Has anybody tried this?

https://github.com/stuxcrystal/passenger_asgi

[joshlsullivan]

I'm interested in this too!

[criess]

Hey, we are currently using a2wsgi from https://github.com/abersheeran/a2wsgi to emulate an wsgi interface but as i can understand you loose all the async features because the adapter will wait (pretty inefficient) until asgi yields a response. Haven't tried the https://github.com/stuxcrystal/passenger_asgi so far, but it seems to do similar.