dotnet-fluent-validation

To implement FluentValidation for DTOs in a .NET 8 project, you create validator classes defining declarative rules, register them with the dependency injection container, and inject them into services to enforce data integrity before executing business logic.

The best way to register FluentValidation validators with .NET dependency injection is to add them to the DI container during application startup, allowing them to be seamlessly injected into services for robust input validation and improved code maintainability.

You should use declarative validation instead of manual checks in a .NET API when you need to define complex validation rules for DTOs in a clean, readable format, replacing manual checks to streamline input validation and enhance code quality.

Yes, you can use FluentValidation to enforce password complexity and email format in .NET by creating a validator for your user registration DTO that ensures correct email formats, password requirements, and required fields are present before processing.

FluentValidation integrates directly with existing .NET service layers by allowing validators to be injected into services, which facilitates enforcing data integrity and adhering to project-specific coding patterns before business logic execution.

Using FluentValidation over manual validation for complex DTO rules in .NET provides a declarative approach that simplifies standardization, enhances code readability, and improves overall maintainability of your input validation logic.