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 favicon = require('serve-favicon')
require("./api_server/models/db");
var cors = require('cors');


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

var app = express();

//const PORT = 3000;
//app.listen(PORT, () => console.log(`Example app listening on port ${PORT}!`))

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');

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

const options = {
  origin: true,
  "Access-Control-Allow-Credentials": true,

  "Access-Control-Allow-Origin": true,
  "Access-Control-Allow-Headers": true,
  "Access-Control-Expose-Headers": true,
};

app.use(cors()) // CORS Policy allows to all

app.use('/', indexRouter);
//app.use('/users', usersRouter);
app.use('/api', routerApi);

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

// 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');
});

module.exports = app;