WebSocket API Python On Close

WebSocket API in Python is a protocol that enables two-way communication between a client and a server over a single, long-lived connection. It provides a reliable, low-latency solution for real-time web applications.

In Python, the websocket module provides a simple and straightforward way to create a WebSocket client and server. The websocket module has several events to handle when the WebSocket connection is closed.

On Close Event

The on_close event is fired when the WebSocket connection is closed. It is a good place to clean up resources and terminate any pending operations.

def on_close(self):
    print('websocket connection closed')

To handle the on_close event, you need to implement a class that inherits from the WebSocketApp class and overrides the on_close method.

import websocket

class MyWebSocketApp(websocket.WebSocketApp):
    def on_close(self, ws):
        print("WebSocket closed")

websocket.enableTrace(True)
ws = MyWebSocketApp('wss://mywebsocket.com')
ws.run_forever()

In this example, the MyWebSocketApp class inherits from the WebSocketApp class and overrides the on_close method. The enableTrace method is used to enable logging for debugging purposes.

Conclusion

The on_close event is an important event that you should handle when building WebSocket applications in Python. By implementing the on_close method, you can ensure that your application releases any resources and terminates any pending operations when the WebSocket connection is closed.