FastAPI & Next.js project: Flight Booking App With DevOps. Day 1 - 100 - FastAPI JWT Authentication & Secure Login | Flight Booking Backend | Day-4

Welcome to Day 4 of my FastAPI Flight Booking App series! In this session, we’ll implement secure user login using JWT authentication. We’ll handle the full login flow — from validating credentials to managing token expiry — just like real-world SaaS apps. Here’s what we’ll cover: • 🔐 Login with JWT (JSON Web Tokens) • 🚫 Handle invalid credentials cleanly • ⏳ Respect and enforce token expiration We’re building this app end-to-end: • ✅ FastAPI backend • 🌐 Next.js frontend • 🧪 Testing, CI/CD & security coming in later parts This is perfect if you’re learning backend authentication or building robust login systems in Python. 📌 Don’t miss the next session! 👉 Full playlist here: https://www.youtube.com/playlist?list=PLdtwawCR2QjmdfhM-7SzDOVGop373bbgW Github repo (A mirror) - https://github.com/KNehe/aero_bound_ventures-public.git 📥 Subscribe to follow the build live!