Created
April 9, 2012 13:11
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Simple Chat app using Node.js and Redis
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Node.js chat</title> | |
| <link rel="stylesheet" type="text/css" href="bootstrap.min.css" /> | |
| <script type="text/javascript" src="jquery-1.7.2.js"></script> | |
| <script type="text/javascript" src="/nowjs/now.js"></script> | |
| <script type="text/javascript"> | |
| $(document).ready(function() { | |
| now.receiveMessage = function(time, name, message) { | |
| $("#messages").append("<br />[" + time + "] <" + name + ">: " + message); | |
| }; | |
| now.addName = function(name) { | |
| $("#names").append("<li>" + name + "</li>"); | |
| }; | |
| $("#send-button").click(function() { | |
| now.distributeMessage($("#text-input").val()); | |
| $("#text-input").val(""); | |
| }); | |
| $("#text-input").keyup(function(event) { | |
| if (event.which == 13) { | |
| now.distributeMessage($("#text-input").val()); | |
| $("#text-input").val(""); | |
| } | |
| }); | |
| now.name = prompt("What's your name?"); | |
| $("#welcome").append("Welcome " + now.name); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <div class="container-fluid"> | |
| <div class="row-fluid"> | |
| <div class="span2"> | |
| <div class="page-header"> | |
| <h2>Names</h2> | |
| </div> | |
| <ul id="names"></ul> | |
| </div> | |
| <div class="span8"> | |
| <div class="page-header"> | |
| <h1 id="welcome"></h1> | |
| </div> | |
| <div id="messages"></div> | |
| <hr /> | |
| <div class="well"> | |
| <input type="text" id="text-input" class="span8"> | |
| <input type="button" value="Send" id="send-button" class="btn-primary"> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
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| var connect = require("connect"); | |
| var nowjs = require("now"); | |
| var redis = require("redis"), | |
| client = redis.createClient(); | |
| var server = connect() | |
| .use(connect.favicon()) | |
| .use(connect.logger()) | |
| .use(connect.static("public")) | |
| .listen(8888); | |
| var chat = nowjs.initialize(server); | |
| client.del("names", redis.print); | |
| client.del("messages", redis.print); | |
| chat.connected(function() { | |
| console.log("Connected => ", this.now.name); | |
| chat.now.addName(this.now.name); | |
| var self = this; | |
| client.lrange("messages", 0, -1, function(err, replies) { | |
| console.log("Messages length => ", replies.length); | |
| replies.forEach(function(reply, i) { | |
| var msg = JSON.parse(reply.toString()); | |
| self.now.receiveMessage(msg.time, msg.name, msg.text); | |
| }); | |
| }); | |
| client.lrange("names", 0, -1, function(err, replies) { | |
| console.log("Names length => ", replies.length); | |
| replies.forEach(function(reply, i) { | |
| self.now.addName(reply.toString()); | |
| }); | |
| }); | |
| client.lpush("names", this.now.name); | |
| }); | |
| chat.now.distributeMessage = function(message) { | |
| var msg = { | |
| time: new Date().toLocaleTimeString(), | |
| name: this.now.name, | |
| text: message | |
| } | |
| chat.now.receiveMessage(msg.time, msg.name, msg.text); | |
| client.lpush("messages", JSON.stringify(msg)); | |
| }; |
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