@aiwithhammad2026: 🔐 Built a JWT Authentication System with FastAPI & Python! Today I built and tested a secure authentication flow from scratch: ✅ User login with username & password ✅ Password hashing with bcrypt ✅ JWT token generation ✅ Protected `/profile` & `/chat` endpoints ✅ Bearer token authentication ✅ Pydantic validation ✅ Swagger UI API testing ✅ Proper 401 authentication errors The flow: **Login → Verify Credentials → Generate JWT → Send Bearer Token → Verify Token → Access Protected API** This was another step toward building **production-ready AI backends** instead of just AI demos. 🤖🚀 Next: connecting the authenticated `/chat` endpoint with Gemini and building a complete AI backend. What should I build next: **RAG, AI Agents, or API Deployment?** #Python #FastAPI #JWT #AIEngineering #BackendDevelopment