📚 Another small milestone in my microservice-based project development journey. Over the past few days, I've been working on the User Registration flow for the Authentication Service in the microservices-based project I'm building. This phase was much more than simply creating a registration endpoint. It gave me the opportunity to learn about validation, testing, database persistence, error handling, and security practices that go into building a reliable authentication system. Some of the things I explored: 🔹 Designing and persisting a User entity in PostgreSQL 🔹 Connecting the application to the database using TypeORM 🔹 Implementing request validation and sanitization with express-validator 🔹 Adding email uniqueness checks to prevent duplicate registrations 🔹 Assigning default user roles during registration 🔹 Improving error handling and application logging 🔹 Learning the basics of password hashing 🔹 Following a Test-Driven Development (TDD) approach to verify functionality before implementation 🔹 Writing tests for successful registrations, validation failures, duplicate emails, and other edge cases One thing that stood out to me during this process is how much effort goes into handling edge cases and ensuring data integrity. Building the happy path is often the easy part - making the system robust requires much more attention to detail. I'm still learning a lot about authentication systems, testing strategies, and microservice architecture, but every step of the process is helping me better understand how production-ready backend services are built. Next up: continuing to strengthen the authentication service and exploring more advanced microservice patterns. @codersGyan #Microservices #BackendDevelopment #NodeJS #TypeScript #PostgreSQL #TypeORM #TDD #SoftwareEngineering #LearningInPublic #WebDevelopment