express get query code example

Example 1: express get query params from url

GET /something?color1=red&color2=blue

app.get('/something', (req, res) => {
    req.query.color1 === 'red'  // true
    req.query.color2 === 'blue' // true
})

Example 2: node.js express post query string

const express = require('express');
const bodyParser = require('body-parser');

const app = express();
app.use(bodyParser.urlencoded({ extended: true }));

// POST /somepost/?name=somename
app.post('/somepost', (req, res) => {
    console.log('Name:', req.query.name);
    res.status(200);
});

Example 3: 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 4: express get raw query

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

const app = express();
app.use((req, res, next) => {
  const query = url.parse(req.url).query;
  // Do something...
});

const port = 3000;
app.listen(port, console.log(`Listening on port ${port}.`));