index.js

// Import express
let express = require('express');
// Import Body parser
let bodyParser = require('body-parser');
// Import Mongoose
let mongoose = require('mongoose');
// Initialize the app
let app = express();

// Import routes
let apiRoutes = require("./api-routes");

//importar variables globales
require('dotenv').config({path: 'variables.env'})
// Configure bodyparser to handle post requests

console.log(process.env.DB_URL);

app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(bodyParser.json());
// Connect to Mongoose and set connection variable
mongoose.connect(process.env.DB_URL, { useNewUrlParser: true});

// Heroku Mongoose connection
// mongoose.connect('mongodb://heroku_5686p02g:sia8l3fni4jmu7qbn0ac1t75mf@ds349857.mlab.com:49857/heroku_5686p02g', { useNewUrlParser: true });

var db = mongoose.connection;

// Added check for DB connection

if(!db)
    console.log("Error connecting db")
else
    console.log("Db connected successfully")

// Setup server port
var host = process.env.HOST || '0.0.0.0';
var port = process.env.PORT || 8080;

// Send message for default URL
app.get('/', (req, res) => res.send('Hello World with Express'));

// Use Api routes in the App
app.use('/api', apiRoutes);
// Launch app to listen to specified port
 

app.listen(port, host, () => {
    console.log("Servidor corriendo en  " + port);
});