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server.js
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server.js
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var mongo = require('mongodb').MongoClient,
client = require('socket.io').listen(8080).sockets;
mongo.connect('mongodb://127.0.0.1/chat', function(err, db){
if(err) throw err;
client.on('connection', function(socket){
console.log("Server on");
var col = db.collection('messages'),
sendStatus = function(s){
socket.emit('status',s);
};
//Emit all messages
col.find().limit(100).sort({_id:1}).toArray(function(err,res){
if(err) throw err;
socket.emit('output',res);
});
console.log('Someone has connected');
// wait for input
socket.on('input', function(data){
var name = data.name,
message = data.message,
whitespacePattern = /^\s*$/;
if(whitespacePattern.test(name) || whitespacePattern.test(message)){
sendStatus('Name and message is required');
}else {
col.insert({name: name, message: message}, function(){
// Emit latest message to all clients
client.emit('output',[data]);
sendStatus({
message: "Message sent",
clear : true
});
});
}
});
});
});