app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var bodyParser  = require('body-parser');
var mongoose    = require('mongoose');
var contract = require('./blockchain/contract');
var app = express();


//var router = require('./router/main')(app);

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.engine('html', require('ejs').renderFile);

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());

var User = require('./models/user');
var router = require('./router')(app, User, contract);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

var db = mongoose.connection;
db.on('error', console.error);
db.once('open', function(){
    // CONNECTED TO MONGODB SERVER
    console.log("Connected to mongod server");
});

mongoose.connect('mongodb://localhost/fairdraw');

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

var port = process.env.PORT || 8080;


var server = app.listen(port, function(){
    console.log("Express server has started on port " + port)
});


module.exports = app;