express query params router code example

Example 1: expressjs query params

// GET /search?q=tobi+ferret
console.dir(req.query.q)
// => 'tobi ferret'

// GET /shoes?order=desc&shoe[color]=blue&shoe[type]=converse
console.dir(req.query.order)
// => 'desc'

console.dir(req.query.shoe.color)
// => 'blue'

console.dir(req.query.shoe.type)
// => 'converse'

// GET /shoes?color[]=blue&color[]=black&color[]=red
console.dir(req.query.color)
// => ['blue', 'black', 'red']

Example 2: express url redirect

const app = require('express')();

// The `res.redirect()` function sends back an HTTP 302 by default.
// When an HTTP client receives a response with status 302, it will send
// an HTTP request to the URL in the response, in this case `/to`
app.get('/from', (req, res) => {
  res.redirect('/to');
});
app.get('/to', (req, res) => res.send('Hello, World!'));