Server-Sent Events with Nginx and uWSGI

Question

Is it possible to use server-sent events from a python/Flask application that is behind uWSGI and Nginx?

I've found packages that implement SSE in python/Flask, but they seem to all do so using gevent and greenlets.

https://github.com/DazWorrall/flask-sse

Thanks!

Answer 1

Recent versions of uWSGI (from 1.9) have built-in support for websockets / SSE. This article provides an excellent guide:

uWSGI docs: Offloading Websockets and Server-Sent Events

Answer 2

can't you simply use gevent with uWSGI ?

Generally this kind of technologies should be used with async engines as the multithread/multiprocess paradigm would be too much costly.