Sentry Answers>Node.js>

Debug a Node.js server application

Debug a Node.js server application

David Y.

The problemJump To Solution

How do I debug a Node.js server application?

The solution

Node.js contains a built-in debugger that can interface with Chromium-based web browsers and popular IDEs such as Visual Studio Code and JetBrains WebStorm. Start the debugger by supplying the --inspect flag when running your server code.

Click to Copy
node --inspect myApp.js

This will start a debugging server on 127.0.0.1:9229. Follow the official instructions to connect to the server with your favourite browser or IDE.

If you do not want to debug through a browser or editor, you can use Node.js’s simple CLI-based debugger by running node inspect:

Click to Copy
node inspect myApp.js

Type help for a list of debugging commands.

  • SentryWorkshop: Debugging your Node.js Project With Sentry
  • Community SeriesIdentify, Trace, and Fix Endpoint Regression Issues
  • ResourcesBackend Error Monitoring 101
  • Syntax.fm logo
    Listen to the Syntax Podcast

    Tasty treats for web developers brought to you by Sentry. Get tips and tricks from Wes Bos and Scott Tolinski.

    SEE EPISODES

Considered “not bad” by 4 million developers and more than 100,000 organizations worldwide, Sentry provides code-level observability to many of the world’s best-known companies like Disney, Peloton, Cloudflare, Eventbrite, Slack, Supercell, and Rockstar Games. Each month we process billions of exceptions from the most popular products on the internet.

© 2024 • Sentry is a registered Trademark
of Functional Software, Inc.