app.js

// Load Dependencies
const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const stylus = require('stylus');
const passport = require('passport');
const mongoose = require('mongoose');

// const fs = require('fs');

// Load Routers
const indexRouter = require('./routes');
const apiRouter = require('./routes/api');

// Load Configs
const config = require('./config');
const passportConfig = require('./passport');

// Init Express App
const app = express();
passportConfig();

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

// MiddleWares
app.use(passport.initialize());
app.use(passport.session());
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(stylus.middleware(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));

// set the secret key variable for jwt
app.set('jwt-secret', config.secret);

// setting Routers
app.use('/', indexRouter);
app.use('/api', apiRouter);

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

// error handler
app.use(function (err, req, res) {
  // 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');
});

// Connect to MONGODB SERVER
mongoose.connect(config.mongodbUri, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
  useCreateIndex: true,
});
const db = mongoose.connection;
db.on('error', console.error);
db.once('open', () => {
  console.log('connected to mongodb server');
});

module.exports = app;