Dead simple pub-sub using node.js / socket.io. Extremely easy to get started, scale, and use. It hooks into any back-end you have, and works on any browser your visitors are using. That means you don't have to worry about refactoring your existing codebase to take advantage of pub-sub push using web sockets.
As what i can see now, some links in the tutorials are obsoleted....Do you mind fix them a little bit?
Also , i get the code from "npm install Pega.IO" then each time I run node app.js,
/home/ec2-user/site/node_modules/Pega.IO/node_modules/redis/index.js:386
throw callback_err;
^
Error: Uncaught, unspecified 'error' event.
at RedisClient.EventEmitter.emit (events.js:68:15)
at Command.RedisClient.do_auth.self.send_anyway as callback
at RedisClient.return_error (/home/ec2-user/site/node_modules/Pega.IO/node_modules/redis/index.js:382:25)
at RedisReplyParser. (/home/ec2-user/site/node_modules/Pega.IO/node_modules/redis/index.js:78:14)
at RedisReplyParser.EventEmitter.emit (events.js:88:17)
at RedisReplyParser.send_error (/home/ec2-user/site/node_modules/Pega.IO/node_modules/redis/lib/parser/javascript.js:265:14)