Flask SocketIO – Socket.IO integration for Flask applications.
Flask SocketIO, a very easy to use extension that enables WebSocket communications in Flask applications. Flask-SocketIO gives Flask applications access to low latency bi-directional communications between the clients and the server. The client-side application can use any of the SocketIO official clients libraries in Javascript, C++, Java and Swift, or any compatible client to establish a permanent connection to the server.
What is WebSocket?
WebSocket is a new communication protocol introduced with HTML5, mainly to be implemented by web clients and servers, though it can also be implemented outside of the web.
Unlike HTTP connections, a WebSocket connection is a permanent, bi-directional communication channel between a client and the server, where either one can initiate an exchange. Once established, the connection remains available until one of the parties disconnects from it.
WebSocket connections are useful for games or web sites that need to display live information with very low latency. Before this protocol existed there were other much less efficient approaches to achieve the same result such as Comet.
The following web browsers support the WebSocket protocol:
- Chrome
- Safari
- Firefox
- Internet Explorer
What is SocketIO?
is a cross-browser Javascript library that abstracts the client application from the actual transport protocol. For modern browsers the WebSocket protocol is used, but for older browsers that don’t have WebSocket SocketIO emulates the connection using one of the older solutions, the best one available for each given client.
The important fact is that in all cases the application uses the same interface, the different transport mechanisms are abstracted behind a common API, so using SocketIO you can be pretty much sure that any browser out there will be able to connect to your application, and that for every browser the most efficient method available will be use.
Read more about SocketIO: https://iotbyhvm.ooo/socket-io/
How to install Flask SocketIO
You can install this package in the usual way using pip:
pip install flask-socketio
How To use Flask SocketIO
Visit official Documentation https://flask-socketio.readthedocs.io/en/latest/
GitHub link : https://github.com/miguelgrinberg/Flask-SocketIO
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