feat(errors): Turn manualy raised unprocessable_entity errors into ValidationFailure #457
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Context
Error handling in services and the way it's rendered in API and GraphQL needs a complete refactoring.
Description
The objective of this pull request is to normalize the way services return data validation errors.
When a service action cannot be performed because the custom pre-conditions are not met, the service keeps returning a failed error as it was doing before. But instead of a list of error codes and custom "unprocessable entity we are now building a
BaseService::ValidationFailure
with a list of error messages for each fields (or base if not for a specific field) and we attach it as the error field of the result object.This new behavior is now used in the custom service validators
NOTE: The result of wallet validators changed a bit, it as an impact on the front end and should be fixed before the merge