Day 7 | FastAPI Microservices | JWT Authentication

Welcome to Day 7. Let's talk about one of the biggest bottleneck in microservices: Authentication. If your User Service handles logins, how do the Product, Order, and Inventory services know if a request is authenticated? If they all have to ask the User Service on every single click, your system will crash under the load. The solution is Stateless Authentication. Today, we are generating signed JSON Web Tokens (JWTs). Once the User Service signs this token, any other microservice can mathematically verify it without ever touching a database Full playlist: https://www.youtube.com/playlist?list=PLdtwawCR2QjlCvbu2WJ-8EiJNHmJuprvT The code (Every commit == a day): https://github.com/KNehe/fastapi-microservices