Python websocket example github

Python websocket example github

I'd be happy to provide an example of a Python WebSocket implementation using the Autobahn library from GitHub.

Firstly, let's set up the environment. You will need:

Now, let's dive into the example!

Server (WebSocket) Example

import asyncio
from autobahn.asyncio.websocket import WebSocketServerProtocol
class MyWebSocket(WebSocketServerProtocol):
async def on_connect(self):
print(f"Client {self.peername} connected")
async def on_disconnect(self, close_code):
print(f"Client {self.peername} disconnected with code {close_code}")
async def on_message(self, payload):
print(f"Received message: {payload}")
Handle the message here...
await self.send("Hello from the server!")
start_server = autobahn.asyncio.run_asynchronous
def main():
start_server(MyWebSocket, 'localhost', 9000)
if name == "main":
asyncio.get_event_loop().run_until_complete(main())

Client (WebSocket) Example

import asyncio
from autobahn.asyncio.websocket import connect_async
async def on_open(ws):
print("Connection opened")
await ws.send("Hello from the client!")
async def on_message(ws, message):
print(f"Received message: {message}")
Handle the message here...
await ws.send("Hello from the client again!")
async def main():
ws = await connect_async('ws://localhost:9000')
await on_open(ws)
while True:
msg = input("Enter a message (or 'exit' to quit): ")
if msg.lower() == "exit":
break
await ws.send(msg)
if name == "main":
asyncio.get_event_loop().run_until_complete(main())

In the above examples, we're creating a WebSocket server and client using Autobahn. The MyWebSocket class represents the server-side logic, handling incoming connections, messages, and disconnections.

The client-side example connects to the server and sends/receives messages. You can modify the code to fit your specific use case. For instance, you could handle different message types or add authentication mechanisms.

Additional Resources

For a more comprehensive understanding of Autobahn and WebSocket, I recommend exploring these resources:

I hope this example helps you get started with building a WebSocket-based application in Python!

What is the best WebSocket library for Python?

Here's a detailed answer:

Choosing the right WebSocket library can be crucial for building robust and efficient real-time applications with Python. Here, we'll discuss some of the most popular options and their unique features.

1. Autobahn

Autobahn is a high-level Python WebSocket library that provides a simple and intuitive API for building WebSocket servers and clients. It's designed to be easy to use and offers excellent performance. Autobahn supports both TCP and SSL/TLS connections, making it a great choice for secure and reliable real-time communication.

Pros:

Cons:

2. ws

ws is another popular WebSocket library for Python that provides a simple and lightweight API for building WebSocket servers and clients. It's designed to be easy to use and offers good support for both TCP and SSL/TLS connections.

Pros:

Cons:

3. Flask-SocketIO

Flask-SocketIO is a Python library that integrates WebSocket functionality with the popular Flask web framework. It provides a simple and intuitive API for building real-time applications with Flask.

Pros:

Cons:

4. Socket.IO

Socket.IO is a Python library that integrates WebSocket functionality with the popular Django web framework. It provides a simple and intuitive API for building real-time applications with Django.

Pros:

Cons:

5. Ratchet

Ratchet is a Python library that provides a robust WebSocket implementation with support for both TCP and SSL/TLS connections. It's designed to be highly customizable and offers excellent performance.

Pros:

Cons:

In conclusion, the best WebSocket library for Python depends on your specific requirements and preferences. If you're looking for a lightweight and easy-to-use library with good support for SSL/TLS connections, Autobahn or ws might be the way to go. If you prefer a more comprehensive solution that integrates well with popular web frameworks like Flask or Django, consider using Flask-SocketIO or Socket.IO.

Remember, when choosing a WebSocket library, it's essential to evaluate your specific needs and assess the trade-offs between ease of use, performance, and customization.