In this post, I’ll tackle a straightforward problem: launching a Celery task X after all tasks Y have been completed. Task X needs to take the result of all the tasks Y as an input. While it seems like a brute-force solution would be to manually store each result of task Y, it’s more interesting to achieve this using Celery without manual database manipulations or extra code. This guide is not meant to be an exhaustive or comprehensive manual; consider it more like a cheat sheet. Througho...
