app.js

require('dotenv').config();
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const cors = require('cors');

var indexRouter = require('./routes/index');

var app = express();


// DB MongoDB
const db = require("./db/models");
db.mongoose
    .connect('mongodb://' + process.env.MONGO_INITDB_ROOT_USERNAME + ':' + process.env.MONGO_INITDB_ROOT_PASSWORD + '@mongo:27017/' + process.env.MONGO_INITDB_DATABASE + '', {
        auth: {
            username: process.env.MONGO_INITDB_ROOT_USERNAME,
            password: process.env.MONGO_INITDB_ROOT_PASSWORD
        },
        authSource:"admin",
        useNewUrlParser: true,
        useUnifiedTopology: true
    })
    .then(() => {
        console.log("Connected to the database!");
    })
    .catch(err => {
        console.log("Cannot connect to the database!", err);
        process.exit();
    });

console.log('-----------------------------------------------------');
console.log('mongodb://' + process.env.MONGO_INITDB_ROOT_USERNAME + ':' + process.env.MONGO_INITDB_ROOT_PASSWORD + '@mongo:27017/' + process.env.MONGO_INITDB_DATABASE + '');
console.log('-----------------------------------------------------');

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*" ); // update to match the domain you will make the request from
    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Headers, Access-Control-Request-Method, Access-Control-Request-Headers, Authorization");
    res.header("Access-Control-Allow-Methods", "POST, PUT, GET, DELETE, OPTIONS");
    next();
});

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: true }))
app.use(cookieParser());

app.use('/', indexRouter);
app.use('/images', express.static(path.join(__dirname, 'images')));

module.exports = app;