Integrating localization in validation frameworks

In Chapter 6, Exploring Validation and Mapping, we talked about how to integrate validation into a minimal API project. We learned how to use the MiniValidation library, rather than FluentValidation, to validate our models and provide validation messages to the callers. We also said that FluentValidation already provides translations for standard error messages.

However, with both libraries, we can leverage the localization support we have just added to our project to support localized and custom validation messages.

Localizing validation messages with MiniValidation

Using the MiniValidation library, we can use validation based on Data Annotations with minimal APIs. Refer to Chapter 6, Exploring Validation and Mapping, for instructions on how to add this library to the project.

Then, recreate the same Person class:

public class Person
{
     [Required]
     [MaxLength...