Express JavaScript Answers

How to Get Query String Variables in Express.js on Node.js?

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To get query string variables in Express.js on Node.js, we can use the req.query property.

For instance, we can write:

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => {

app.listen(port, () => {
  console.log(`Example app listening at http://localhost:${port}`)

to return the req.query object as the response in the / route.

Then when we add ?foo=bar at the of the URL as the query string, we should see:

  "foo": "bar"

returned as the response.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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