server.js

const express = require('express');
const cors = require('cors');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const dotenv = require("dotenv")
dotenv.config()

global.Item = require('./models/itemModel.js');
const routes = require('./routes/itemRoutes.js');

mongoose.Promise = global.Promise;
mongoose.set('useFindAndModify', false);
mongoose.connect(
  `mongodb+srv://${process.env.DB_USERNAME}:${process.env.DB_PASSWORD}@${process.env.DB_HOST}`
  ,
  { useNewUrlParser: true,
    useUnifiedTopology: true}
);

const port = process.env.PORT || 8080;
const app = express();

app.use(cors());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());

routes(app);
app.listen(port);

app.use((req, res) => {
  res.status(404).send({ url: `${req.originalUrl} not found` });
});

console.log(`Server started on port ${port}`);

module.exports = express