app.js

// require('dotenv').config();
var express = require('express');
// var path = require('path');
// var favicon = require('serve-favicon');
// var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var passport = require('passport');
var authenticate = require('./authenticate');
var User = require("./schema/user.js");
const request = require('request');


// database connect
mongoose.Promise = global.Promise;
mongoose.connect('mongodb+srv://Hack:Hack123@hackday-1hwua.mongodb.net/test?retryWrites=true&w=majority', { useNewUrlParser:true ,useCreateIndex:true,useUnifiedTopology:true, useFindAndModify: false });
var db = mongoose.connection;
db.on('error',console.error.bind(console, 'connection error:'));
db.once('open', function(){
 console.log('connected to db server successfully');
 });
// done

var app = express();

//passport

app.use(passport.initialize());


// view engine setup
app.use(express.static(__dirname+"/public"));
 app.set('view engine', 'ejs');


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

//Routes=================================================================================
app.get('/', function(req,res){
    console.log("index page");
    res.render("index.ejs");
});

app.get('/chat', function(req,res){
    console.log("chat page");
    res.render("chat.ejs");
});

app.get('/nearus', function(req,res){
    console.log("nearus page");
    res.render("nearus.ejs");
});

app.get('/login', function(req,res){
    console.log("login page");
    res.render("login.ejs");
});

app.get('/planetsaver', function(req,res){
    console.log("planetsaver page");
    res.render("planetsaver.ejs");
});


// USING GOOGLE SEARCH API 
app.get("/results",function(req,res){
    var search_term =  req.query.search_var_of_ejs; // note
    // URL - API KEY AND CX ID 
    var url = 'https://www.googleapis.com/customsearch/v1?key=AIzaSyD98gZC34YDhYUl0xLo5Utl1p7s84MsOpY&cx=000641635650089593781:dnwnsyznkib&q='+ 'eco friendly '+ search_term;
    request(url, function (error, response, body) {
        // eval(require('locus'));
      console.error('error:', error);
      console.log('statusCode:', response && response.statusCode);
      var data = JSON.parse(body);
      res.render("results.ejs",{data:data});
    });

});



// SOCKET.IO CHAT BOX 
//=======================================================================================

// server = app.listen("3000",process.env.IP,function(){
// 	     console.log("Connected");
// });

server = app.listen("3000",process.env.IP,function(){
    console.log("connected");
});

// 
const io = require("socket.io")(server);
//listen on every connection
io.on('connection', (socket) => {
	console.log('New user connected')

	//default username
	socket.username = "Anonymous"

    //listen on change_username
    socket.on('change_username', (data) => {
        socket.username = data.username
    })

    //listen on new_message
    socket.on('new_message', (data) => {
        //broadcast the new message
        io.sockets.emit('new_message', {message : data.message, username : socket.username});
    })

    //listen on typing
    socket.on('typing', (data) => {
    	socket.broadcast.emit('typing', {username : socket.username})
    })
})