Entensions to support validation of new types using fluent validations
Get Started
$ dotnet add package Oneiro.NewType.FluentValidationReadme
NewType FluentValidation
Please reference FluentValidation for more information on how to use the library.
Oneiro.NewType.FluentValidation provides extensions to support validation of new types using FluentValidation.
Installation
To install the package, use the following command:
dotnet add package Oneiro.NewType.FluentValidation
Usage
Creating a New Type
First, create a new type by inheriting from NewType<T, TNewType> or use one
of the many built in new types:
Creating a Validator
Next, create a validator for your new type using FluentValidation.
var validator = Validations.CreateValidatorFor<int, NewInt>(
builder => builder.GreaterThan(0)
);
Using the Validator
You can now use the validator to validate instances of your new type:
var newInt = NewInt.From(100);
var validator = Validations.CreateValidatorFor<int, NewInt>(
builder => builder.GreaterThan(0)
);
ValidationResult result = validator.Validate(newInt);
if (result.IsValid)
Console.WriteLine("Validation succeeded.");
else {
Console.WriteLine("Validation failed:");
foreach (var error in result.Errors)
Console.WriteLine($"- {error.ErrorMessage}");
}
ValidatedNewType and IValidator
Any ValidatedNewType<T, TNewType> rules defined can be used and converted into
an IValidator<TNewType> using the Validations.CreateValidatorFor method.
sealed record ValidatedNewInt : ValidatedNewType<int, NewInt> {
public ValidatedNewInt(int value) : base(value) {
RuleFor(x => x).GreaterThan(0);
}
}
var validator = Validations.CreateValidatorFor<int, ValidatedNewInt>();
License
This project is licensed under the MIT License. See the LICENSE file for more details.