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Learn the modern standard for securing APIs and web applications. This course provides a deep dive into JSON Web Tokens (JWT), explaining what they are, how they work, and how to implement them in a real-world backend application.
We break down the structure of a JWT (Header, Payload, Signature) and show you how to create and sign them securely. You will learn to build a complete authentication system where users can register and log in to receive a token. We'll then create protected routes and write middleware to verify incoming tokens, ensuring only authenticated users can access certain data. We'll also cover best practices for storing tokens on the client and the role of refresh tokens for enhanced security.
This course is for backend and full-stack developers who want to learn how to properly secure their APIs. A solid understanding of a backend language like Node.js or Python is required.
