app.js

const express = require('express');
const morgan = require('morgan');
// const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const db = require('./api/config/db');
const app = express();
const userRoutes = require('./api/routes/user');

// Connect to DB
db.connect();

// mongoose.connect(
//   "mongodb://node-shop:" +
//     process.env.MONGO_ATLAS_PW +
//     "@node-rest-shop-shard-00-00-wovcj.mongodb.net:27017,node-rest-shop-shard-00-01-wovcj.mongodb.net:27017,node-rest-shop-shard-00-02-wovcj.mongodb.net:27017/test?ssl=true&replicaSet=node-rest-shop-shard-0&authSource=admin",
//   {
//     useMongoClient: true
//   }
// );
mongoose.Promise = global.Promise;

//HTTP logger
app.use(morgan('combined'));

// app.use(morgan('dev'));
app.use('/uploads', express.static('uploads'));
app.use(
  express.urlencoded({
      extended: true,
  }),
);
app.use(express.json());

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

app.use((req, res, next) => {
  res.header("Access-Control-Allow-Origin", "*");
  res.header(
    "Access-Control-Allow-Headers",
    "Origin, X-Requested-With, Content-Type, Accept, Authorization"
  );
  if (req.method === "OPTIONS") {
    res.header("Access-Control-Allow-Methods", "PUT, POST, PATCH, DELETE, GET");
    return res.status(200).json({});
  }
  next();
});

// Routes which should handle requests

app.use("/user", userRoutes);

app.use((req, res, next) => {
  const error = new Error("Not found");
  error.status = 404;
  next(error);
});

app.use((error, req, res, next) => {
  res.status(error.status || 500);
  res.json({
    error: {
      message: error.message
    }
  });
});