CODEWITHSUNDEEP
node.jsexpress
Arif Khan
Arif Khan

Reputation: 5069

unable to get params from middleware into route

app.js

const adminRoutes = require('./routes/admin');
app.use('/admin/customer/:customerId', (req, res, next) => {
    console.log('middleware id=', req.params.customerId);
    next();
}, adminRoutes);

and here is routes/admin.js

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


router.post('/user', (req, res) => {
    console.log('route id=', req.params.customerId);
    res.json(req.params);
});

module.exports = router;

I am getting following output 

middleware id= 1
route id= undefined

while expected output is

middleware id= 1
route id= 1

Upvotes: 0

Views: 51

Answers (2)

abdulbari
abdulbari

Reputation: 6232

You can try this:

You can directly call your route without using another callback and it should work

app.js

const adminRoutes = require('./routes/admin');
app.use('/admin/customer/:customerId',adminRoutes);

If it does't work then you will have to set the params in request object before using your routes

Upvotes: 0

ponury-kostek
ponury-kostek

Reputation: 8060

You need to use Router options property mergeParams if you want to access params from the parent router.

const express = require('express');
const router = express.Router({mergeParams:true});


router.post('/user', (req, res) => {
    console.log('route id=', req.params.customerId);
    res.json(req.params);
});

module.exports = router;

Upvotes: 2

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