module.exports = function (app) {
  const router = require('express').Router(),
    customerCtl = require('../controllers/customer');

  // On routes that end in /customers
  router.route('/')
    .get(customerCtl.getCustomers_get)
    .post(customerCtl.createCustomer_post)

  // On routes that end in /customers/:customer_id
  router.route('/:customer_id')
    .get(customerCtl.getCustomer_get)
    .put(customerCtl.updateCustomer_put)
    .delete(customerCtl.deleteCustomer)

  app.use('/api/customers', router);
};