Overview
Flask-SocketIO 5.3, released on October 1, 2023, adds Flask 3.0 compatibility and improves namespace handling.
Main Features
This release ensures compatibility with Flask 3.0 and its new type hints system, while maintaining backward compatibility with Flask 2.x.
python
from flask import Flask
from flask_socketio import SocketIO, emit
app = Flask(__name__)
socketio = SocketIO(app)
@socketio.on('message')
def handle_message(data):
emit('response', {'text': data})