src/routes.js


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import {Router} from 'express';

const routes = Router();

/**
 * GET home page
 */
routes.get('/', (req, res) => {
  res.render('index', {title: 'Express Babel'});
});

/**
 * GET /list
 *
 * This is a sample route demonstrating
 * a simple approach to error handling and testing
 * the global error handler. You most certainly want to
 * create different/better error handlers depending on
 * your use case.
 */
routes.get('/list', (req, res, next) => {
  const {title} = req.query;

  if (title == null || title === '') {
    // You probably want to set the response HTTP status to 400 Bad Request
    // or 422 Unprocessable Entity instead of the default 500 of
    // the global error handler (e.g check out https://github.com/kbariotis/throw.js).
    // This is just for demo purposes.
    next(new Error('The "title" parameter is required'));
    return;
  }

  res.render('index', {title});
});

export default routes;