How to send binary data from a Node.js socket.io server to a browser client?

Question

I\'ve been looking through the entire Socket.IO docs, but, even though they promise it is there, I can\'t find a simple, minimal example, of how one would send binary data b

Answer 1

Starting from socket.io 1.0 it is possible to send binary data. http://socket.io/blog/introducing-socket-io-1-0/

How ever the way of sending and receiving binary data is not clear in the official documentation. The only documentation is:

var socket = new WebSocket('ws://localhost');
socket.binaryType = 'arraybuffer';
socket.send(new ArrayBuffer);

I suggest you to take a look at this answer, where you can find basic example with code implementation for server and client (javascript and java too):

How to send binary data with socket.io?

The good part is that it also works on Android! (if you wish)

Cheers