Access GET parameters in Express on Node.js

David Y.

The Problem

How do I access GET parameters in a URL’s query string in a Node.js Express application?

The Solution

We can access the GET parameters of the current URL using req.query():

const express = require("express"); const app = express(); app.get("/", (req, res) => { res.send(`GET parameters: ${JSON.stringify(req.query)}`); }); app.listen(8000);

Given the URL http://localhost:8000?id=1&firstname=Jane&surname=Doe, this code will return an HTTP response with the following content:

GET parameters: {"id":"1","firstname":"Jane","surname":"Doe"}

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  1. Create a free Sentry account

  2. Create a Node project and note your DSN

  3. Install the Sentry Node SDK

npm install @sentry/node
  1. Configure your DSN
const Sentry = require('@sentry/node'); Sentry.init({ dsn: 'https://<key>@sentry.io/<project>' });

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