python flask websocket

Title: Getting Started with Python Flask Websockets
Introduction:
Websockets provide a real-time, bidirectional communication channel between clients and servers, making them ideal for applications that require instant data updates. Flask, a popular web framework for Python, can be easily extended to support websockets using the Flask-SocketIO extension. In this tutorial, we'll guide you through the process of setting up a simple Flask application with websockets using Flask-SocketIO.
Prerequisites:
Step 1: Install Flask-SocketIO
Open a terminal and install Flask-SocketIO using pip:
Step 2: Create a Flask App
Initialize the Flask app and the SocketIO extension:
Step 3: Create a Websocket Event
Define a websocket event that will handle incoming connections. In this example, we'll create an event called 'message':
This function will be called when a client sends a 'message' event. It prints the received message and emits a 'response' event back to all connected clients.
Step 4: Create HTML Templates
Step 5: Run the Flask App
Finally, start the Flask app with the SocketIO server:
Run your Flask app:
Congratulations! You've created a simple Flask application with websockets using Flask-SocketIO. You can now build more complex real-time applications by expanding on this foundation.
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