server.js

const express = require('express')
const bodyParser = require('body-parser')
const path = require('path')

const app = express()
const port = process.env.PORT || 5000

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

// API calls
app.get('/api/hello', (req, res) => {
  res.send({ express: 'Hello From Express' })
})

app.post('/api/world', (req, res) => {
  console.log(req.body)
  res.send(
    `I received your POST request. This is what you sent me: ${req.body.post}`,
  )
})

if (process.env.NODE_ENV === 'production') {
  // Serve any static files
  app.use(express.static(path.join(__dirname, 'client/build')))
    
  // Handle React routing, return all requests to React app
  app.get('*', function(req, res) {
    res.sendFile(path.join(__dirname, 'client/build', 'index.html'))
  })
}

app.listen(port, () => console.log(`Listening on port ${port}`))