Create A JSON Web Token (JWT) Library From Scratch

What are we building?

• A JSON Web Token (JWT) library with the following functions:

  • Sign
  • Decode
  • Verify

• Following Test Driven Development (TDD) principals

• Using Jest as the test framework

• Bootstrapping the application with tsdx

Should I use this in my production code?

• No, please use a trusted library like jsonwebtoken by Auth0
• Only if you build out all the features and test, test & then test again

Why follow this tutorial?

• Learn about testing with Jest & TDD
• Security
  • JWTs protect your systems resources
  • Understanding how each bit of your auth works will help you keep it secure
  • This guide will help you understand how JWTs work
  • Security is important and as a developer it's your job to keep the system secure

Let's keep in touch

• Subscribe on YouTube
• Discord
• Twitter
• TikTok
• Facebook
• Instagram

Buy me a Coffee

Sign up to DigitalOcean 💖