JWT Authentication in Rails APIs

Modern web and mobile applications require secure, stateless authentication to protect user data and API endpoints. This text-based course guides you through the process of securing a Rails API using JSON Web Tokens (JWT), the industry standard for modern token-based authentication. You will start by understanding the foundational mechanics of JWTs, including how payloads are structured and signed, before moving on to hands-on implementation. What you will learn: Understand the structure and security properties of JSON Web Tokens; Implement secure password hashing using bcrypt in a Rails environment; Build a dedicated tokens controller to handle login requests and issue JWTs; Write custom Rails middleware or controller helpers to decode and validate incoming tokens; Secure your API endpoints by restricting access to authenticated users; Write comprehensive integration tests to verify your authentication flow. In this course, you will progress from core security concepts to writing clean, testable authentication code within a Rails application. This course is designed for beginner to intermediate backend developers who have a basic familiarity with Rails but are new to token-based security. Start reading today to build secure and reliable APIs.