server.js

const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const mongoose = require('mongoose');

const app = express();

// Middleware
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());

// DB Config
const db = require('./configuration/keys').mongoURI;

// DB Connection
mongoose
  .connect(db, { useNewUrlParser: true })
  .then(() => {
    console.log('MongoDB Connected...');
  })
  .catch((err) => {
    console.log(err);
  });

const filmsRouter = require('./routes/films');
const starshipsRouter = require('./routes/starships');

// Routers
app.use('/films', filmsRouter);
app.use('/starships', starshipsRouter);

// Serve static assets if in production
if (process.env.NODE_ENV === 'production') {
  // Set static folder
  app.use(express.static('client/build'));

  app.get('*', (req, res) => {
    res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
  });
}

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.json({
    message: err.message,
    error: err
  });
});

const port = process.env.PORT || 5000;

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