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https://github.com/vlcinsky/fastapi-sse-htmx


https://github.com/vlcinsky/fastapi-sse-htmx

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=========================
htmx and SSE with FastAPI
=========================
This is experiment testing FastAPI based web app sending Server Sent Events to frontend app created with htmx.

Installation
============
Using python 3.9 and having poetry installed::

$ poetry install

Configuration
=============
There is nothing to configure.

Usage
=====
Activate virtual environment::

$ poetry shell
(.venv)$

Start the web app::

(.venv)$ uvicorn app:app

Open http://localhost:8000 in a browser.

You shall see simple page with a table, where two cells are updating it's content according to events generated by the server.

.. image:: img/page.png

Red rectangles show text, which is dynamically updated.

To test the events from command line::

$ curl -N http://localhost:8000/status_updates
event: #of_subscribers
data: 0
retry: 30000

event: #of_subscribers
data: 1
retry: 30000

event: #of_subscribers
data: 2
retry: 30000

event: #of_subscribers
data: 3
retry: 30000

event: #of_news
data: 4
retry: 30000

event: #of_news
data: 5
retry: 30000