Overview

FastAPI 0.115, released on November 9, 2024, improves WebSocket support with new configuration and connection management options.

Main Features

Improved WebSocket

WebSocket endpoints benefit from better error handling and new connection configuration options.

python 
from fastapi import FastAPI, WebSocket

app = FastAPI()

@app.websocket('/ws')
async def websocket_endpoint(websocket: WebSocket):
    await websocket.accept()
    while True:
        data = await websocket.receive_text()
        await websocket.send_text(f'Received: {data}')

Sources