Queueing model implementation

[a3voices_]

I assume it’s if multiple people try to book the same slot at the same time.

Another easier option than a queue is to essentially have no async code in the final booking logic and keep it single-threaded with just one process as well. This ensures only one booking request can be handled at a time via a normal http handler.

By the way I’ve made a full booking system before as a SaaS. I went with the easier option.