Secure User Sign-Up and Password Hashing in NestJS

Building a secure registration flow is the foundation of any modern web application. This course walks you through implementing a reliable user sign-up process using the NestJS framework, ensuring your application handles sensitive credentials with industry-standard security practices. You will start by mastering the fundamental concepts of authentication, password hashing, and input validation before moving on to practical implementation details. What you will learn: - Understand the core principles of secure authentication and modern password storage - Implement robust input validation using built-in NestJS validation pipes - Apply secure password hashing techniques using the bcrypt library - Configure custom exception filters to handle registration errors and duplicate users gracefully - Structure your authentication modules, controllers, and services according to NestJS best practices - Write unit tests for your authentication logic to ensure long-term code reliability This course begins with foundational security concepts and terminology, guiding you step-by-step through setting up your authentication module, validating incoming payloads, hashing passwords, and managing errors. It is designed for developers who are new to backend security or looking to implement standard registration flows in NestJS. No prior authentication experience is required, though a basic understanding of TypeScript and NestJS fundamentals is recommended. Start building secure backend systems today.