You can wrap the error types into a discriminated union and then check for retry-able errors, and retry if its one of those, otherwise, propagate the error. Or

You can wrap the error types into a discriminated union and then check for retry-able errors, and retry if its one of those, otherwise, propagate the error. Or if you don't need to do special handling for any errors, you can just propagate the whole error and let the caller handle it. ROP definitely isn't useful in all cases, but it has served me quite well in many by simplifying error handling when I don't care at the callee what error occured.