This simple demo contains four parts:
- A very simple FastAPI (actually Starlette, as FastAPI just provides passthroughs when it comes to websockets) server that provides an endpoint where you can request squares of fixed colours. It also provides a HTTP endpoint, too!
- A webpage with a form with R, G, B entries where you can request squares of the colour you specify. This is primarily used to demonstrate error handling.
- A webpage with a single button that requests a thousand images from the server, to demonstrate the speed of websockets. There are two alternatives: one that uses a single websocket connection, and another that uses the more traditional approach of opening a HTTP request per image.
To really understand the benefits of websockets, you should either run this on a remote server, or run it on a local server with throttling enabled.
License: MIT
To run the demo, simply run uvicorn app:app --port=12345, and open
the webpages in your browser.