CODEWITHSUNDEEP
node.jsexpress
vehsakul
vehsakul

Reputation: 1158

Express Router.param doesn't work but app.param does

I've grubbed a couple of lines from express docs to understand how it works: 

// ./routes/test.js

var router = require('express').Router();


router.param(['id', 'page'], function (req, res, next, value) {
  console.log('CALLED ONLY ONCE with', value);
  next();
});

router.get('/user/:id/:page', function (req, res, next) {
  console.log('although this matches');
  next();
});

router.get('/user/:id/:page', function (req, res) {
  console.log('and this matches too');
  res.end();
});


module.exports = router;

and mounted them in the usual way: app.use('/test', require('./routes/test')); The problem is that the callback passed in .param doesn't get executed. When I change the first line to var router = require('express')(); it works fine. An app is just a Router with some additional stuff.

I use express 4.12.4. Any ideas?

Upvotes: 0

Views: 563

Answers (1)

vehsakul
vehsakul

Reputation: 1158

Well, it's not a bug. It's a bug, but in the docs. A Router doesn't accept an array as the first arg, an app does.

Upvotes: 1

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