API's designer often categorize errors into "Technical" and "Functional" (or "Business") errors. However, this distinction may not make sense:
- An API/micro-service should always return ONLY "Functional" (or "Business") errors.
- The API/micro-service migh be crashed while processing a consumer's request and so the consumer will naturally get a technical error. But the API/micro-service should not deliberately return a "Technical" error for consumer. The simple fact that the App built a nice response called "Technical error", then gracefully return it, make it no longer a technical error, but a "fake" one.
We will explore the distinction between "real technical errors" and "fake technical errors". "Fake technical errors" are initially technical but later manifest as business errors, thus becoming "fake technical errors."
- HTTP 404 Business error (or Fake technical error)
