Handle Duplicate Email in FastAPI Signup | Prevent Duplicate Users (409 Conflict)
Автор: Yash Jain
Загружено: 2026-02-02
Просмотров: 16
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Welcome to another video of the FastAPI Series! 🌙
In this session, we’re improving our Signup API in FastAPI by learning how to handle duplicate email registrations cleanly and correctly. 📧🚫
This video shows how to check for existing users, prevent duplicate entries, and return the proper HTTP status code (409 Conflict) using HTTPException — a real‑world best practice.
By the end of this lesson, you’ll understand:
✅ Why checking for duplicate emails is critical in Signup APIs
✅ How to query the database to detect existing users
✅ How to handle conflicts using HTTPException
✅ Why 409 Conflict is the correct status code
✅ How this improves API reliability and user experience
✅ Best practices for validating uniqueness in authentication flows
With hands‑on code walkthroughs and clear explanations, you’ll gain the confidence to build robust and production‑ready Signup APIs using FastAPI. 🚀
💬 Don’t forget to Like, Subscribe, and Comment what you learned today — your support keeps these coding lessons going strong!
✨ Before you sleep, make sure you’ve learned something new. ✨
#FastAPISeries #FastAPI #SignupAPI #DuplicateEmail #HTTPException #Authentication #Python #LearnFastAPI #BackendDevelopment #PythonProgramming #CodeBeforeYouSleep #YashJain
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