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app.js
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app.js
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var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var routes = require('./routes/index');
var users = require('./routes/users');
var app = express();
var http = require('http').Server(app);
var Db = require('mongodb').Db,
MongoClient = require('mongodb').MongoClient,
Server = require('mongodb').Server,
ReplSetServers = require('mongodb').ReplSetServers,
ObjectID = require('mongodb').ObjectID,
Binary = require('mongodb').Binary,
GridStore = require('mongodb').GridStore,
Grid = require('mongodb').Grid,
Code = require('mongodb').Code,
BSON = require('mongodb').pure().BSON,
assert = require('assert'); BSON = require('mongodb').pure().BSON,
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes);
app.use('/users', users);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
var io = require('socket.io').listen(http.listen(3000));
io.sockets.on('connection', function (socket) {
console.log("inside socket connection");
var mongoclient = new MongoClient(new Server("localhost", 27017), {native_parser: true});
console.log("inside socket connection setInterval");
mongoclient.open(function(err, mongoclient) {
var db = mongoclient.db("news_test");
setInterval(function(){
db.collection('mycollection').find().toArray(function(err,result){
console.log("result123--"+JSON.stringify(result[0]));
io.sockets.emit('chat message', result);
});
},10000);
});
mongoclient.close();
// Open the connection to the server
socket.on('chat message', function (data) {
console.log("this is data from client--"+data);
io.sockets.emit('chat message', data);
});
});
module.exports = app;