Why we would rather answer with an error than a wrong guess
A wrong answer that looks confident is worse than an honest failure. An error tells you to check something. A confident wrong guess tells you nothing is wrong.
Tag
#error-handling
Set up a fallback when a lookup returns no result
An empty result is a normal, valid response, not an error, and your code needs a deliberate path for handling it.
Mapping error codes between providers before you switch
Error handling code is often the most overlooked part of a provider migration. Here is how to map error codes properly before cutting over.