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FluentValidation is not directly compatible with Swagger API to validate models. But they do provide an interface through which we can compose Swagger validation manually. That means we look under FluentValidation validators and compose Swagger validator properties to make it compatible. More of all mapping by reading information from FluentValidation and setting it to Swagger Model Schema. These can be done on any custom validation from FluentValidation too just that proper schema property has to be available from Swagger. Custom validation from Enum/List values on FluentValidation using FluentValidation.Validators; using System.Collections.Generic; using System.Linq; using static System.String; /// <summary> /// Validator as per list of items. /// </summary> /// <seealso cref="PropertyValidator" /> public class FixedListValidator : PropertyValidator { /// <summary> /// Gets the valid items /// <...

Validation is one of the crucial parts of any application. It has to validate on both client side and server side requests. What are target features or implementation from this article? Model validation for any given model. Centralized/One code for validation on both server-side and client-side. Automatic validation of model without writing any extra codes on/under actions for validation.  NO EXTRA/ANY codes on client-side to validate any form. Compatible with SPA. Can be compatible with any client-side validation framework/library. Like Angular Reactive form validation or any jquery validation libraries. Tools used in the implementation? FluentValidation : I feel DataAnnotation validation are excellent and simple to use, but in case of complex validation or writing any custom validations are always tricker and need to write a lot of codes to achieve whereas FluentValidations are simple even in case of complex validation. Generally, we need to validate inc...