server.js

const express = require('express');
const bodyParser = require('body-parser');
const path = require('path');
const sequelize = require('./config/connection');
const cors = require('cors');

const routes = require('./controllers');
const PORT = process.env.PORT || 8082;

const app = express();

var corsOptions = {
  origin: '/',
};

app.use(cors(corsOptions));

app.use(bodyParser.json());

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

app.use(express.json());

app.use(express.static(path.join(__dirname, 'public')));

if (process.env.NODE_ENV === 'production') {
  app.use(express.static(path.join(__dirname, 'client/build')));
}

app.use(routes);

if (process.env.NODE_ENV === 'production') {
  app.use(express.static('client/build'));
  app.get('*', (req, res) => {
    res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
  });
}

sequelize.sync().then(() => {
  app.listen(PORT, () => {
    console.log(`Server is listening on port ${PORT}!`);
  });
});