node js query params code example

Example 1: js get query param

const queryString = window.location.search;
const parameters = new URLSearchParams(queryString);
const value = parameters.get('key');

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: 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: 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));

Example 5: node js http request get parameters

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

http.createServer(function (req, res) {
  const queryObject = url.parse(req.url,true).query;
  console.log(queryObject);

  res.writeHead(200, {'Content-Type': 'text/html'});
  res.end('Feel free to add query parameters to the end of the url');
}).listen(8080);