index.js

'use strict';
require('dotenv').config();

const express = require('express');
const cors = require('cors');
const morgan = require('morgan');
const bodyParser = require('body-parser');

const { PORT } = require('./config');
const { dbConnect } = require('./db-mongoose');

const loginRouter = require('./routers/loginRouter');
const userRouter = require('./routers/userRouter');
const dataRouter = require('./routers/dataRouter');


const app = express();

app.use(cors());

app.use(bodyParser.json());

app.use(
  morgan(process.env.NODE_ENV === 'production' ? 'common' : 'dev', {
        skip: (req, res) => process.env.NODE_ENV === 'test'
    })
);

app.use('/', loginRouter);
app.use('/user', userRouter);
app.use('/data', dataRouter);


app.get('/', (req, res) => {
  res.send('Tutor home.');
});

function runServer(port = PORT) {
    const server = app
        .listen(port, () => {
            console.info(`App listening on port ${server.address().port}`);
        })
        .on('error', err => {
            console.error('Express failed to start');
            console.error(err);
        });
}

if (require.main === module) {
    dbConnect();
    runServer();
}

module.exports = { app };