server.js

const express = require('express');
const next = require('next');
const path = require('path');
const dynamoose = require('dynamoose');

if (process.env.NODE_ENV === 'development') {
  require('dotenv').config({ path: path.resolve(__dirname, `./env/${process.env.ENV_FILE}`) });
}

// Configure Dynamoose
// The accessKeyId & secretAccessKey can be made avaialble via the IAMRole
dynamoose.AWS.config.update({
  region: process.env.SERVICE_AWS_REGION,
});


if (process.env.NODE_ENV === 'development') {
  /*
    For development environment, atleast with dynamoose library,
    you need to pass mock access key & secret.
  */
  dynamoose.AWS.config.update({
    accessKeyId: process.env.AWS_ACCESS_KEY,
    secretAccessKey: process.env.AWS_ACCESS_SECRET,
    region: process.env.SERVICE_AWS_REGION,
  });
  dynamoose.local('http://localhost:8000');
}

const port = parseInt(process.env.PORT, 10) || 3000;
const dev = process.env.NODE_ENV !== 'production';
const app = next({ dev });
const handle = app.getRequestHandler();

const Dog = require('./models/Dog');

function createServer() {
  const server = express();

  server.get('/api/dog/:breed', async (req, res) => {
    const { breed } = req.params;
    try {
      const dogData = await Dog.query('breed').eq(breed).exec();

      res.send({ s: 'success', d: dogData });
    } catch (e) {
      res.status(500).send({ s: 'error', m: e.message });
    }
  });

  server.get('/api/mock-dog-create/', async (req, res) => {
    try {
      const dogs = [{
        name: 'Ollie',
        breed: 'terrier',
      }, {
        name: 'Maxi',
        breed: 'labrador',
      }, {
        name: 'Rio',
        breed: 'border_collie',
      }];

      await Dog.batchPut(dogs);

      res.send({ s: 'success', m: 'Dogs created successfully', d: dogs });
    } catch (e) {
      res.status(500).send({ s: 'error', m: e.message });
    }
  });

  server.get('*', (req, res) => (handle(req, res)));

  return server;
}

if (dev) {
  app.prepare().then(() => {
    const server = createServer();

    server.listen(port, (err) => {
      if (err) throw err;
      console.log(`> Ready on http://localhost:${port}`);
    });
  });
} else {
  const server = createServer();

  module.exports = server;
}