how to get query params in node js 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: get query parameters in node.js

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

app.get('/', function(req, res){
  res.send('id: ' + req.query.id);
});

app.listen(3000);

Example 3: get query string javascript nodejs

const querystring = require('querystring');
const url = "http://example.com/index.html?code=string&key=12&id=false";
const qs = "code=string&key=12&id=false";

console.log(querystring.parse(qs));
// > { code: 'string', key: '12', id: 'false' }

console.log(querystring.parse(url));