If for whatever reason you don't want to build everything into the front end Javascript, it is very common to throw jobs onto a task queue to be done outside of

If for whatever reason you don't want to build everything into the front end Javascript, it is very common to throw jobs onto a task queue to be done outside of the HTTP flow, so they do not block the response. This could be a lot more accessible to beginners, however, because there are moving pieces like a message queue that have to be set up and blah blah.