If you've ever designed an API endpoint, I have a question for you! How to handle business rule violations? This is a missing piece in ALL APIs in the world, b

If you've ever designed an API endpoint, I have a question for you! How to handle business rule violations? This is a missing piece in ALL APIs in the world, because it's missing in the specs. People do handle the business rules violations, but do they handle them correctly? Why it's not handled the same way across different APIs? Where this inconsistency comes from