How Movie Seats Get Locked Before Payment | Redis TTL Explained #SystemDesign #BackendEngineering

Have you ever wondered how movie booking apps block a seat the moment you select it, even before payment is completed?
In this video, I explain how seat locking works using AWS Lambda and Redis with TTL. You’ll see how a simple Redis key with an expiry time prevents double booking and automatically releases seats if the user leaves or times out. This is a core system design pattern used in movie, flight, and event ticket booking platforms.

Видео How Movie Seats Get Locked Before Payment | Redis TTL Explained #SystemDesign #BackendEngineering канала DataStreak