We do this where I work. It's a lot of extra data types, but they're all extremely simple and better safe than sorry. As a rule, we don't send or receive actu

We do this where I work. It's a lot of extra data types, but they're all extremely simple and better safe than sorry. As a rule, we don't send or receive actual domain objects in our APIs. It doesn't matter if they're currently "safe" - they might not be in the future.