Socket.io with Redis -


what difference between socket.io-redis , socket.io-emitter? need both?

on documentation, says first need create redis adapter:

var io = require('socket.io')(3000); var redis = require('socket.io-redis'); io.adapter(redis({ host: 'localhost', port: 6379 }));

followed immidiately saying can emit messages with:

var io = require('socket.io-emitter')({ host: '127.0.0.1', port: 6379 }); setinterval(function(){   io.emit('time', new date); }, 5000);

there example of socket.io-redis connecting redis , emitting events itself, dont understand why both packages, socket.io-redis , socket.io-emitter, used together: https://github.com/h4t0n/socket.io-redis-appsample/blob/master/app.js


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