README.md

Usage

How to add this to your project:

• reference this package to your project: https://www.nuget.org/packages/Samhammer.Validation/

Validate a model

var context = new Validation<ValidationResult>()
    .Load("test")
    .Add(SampleRule);

var result = await context.ValidateAsync();

if (!result.Succeeded)
{
    // TODO handle validation error
}

public ValidationResult SampleRule(string input)
{
    return new ValidationResult { Succeeded = input != null };
}

Validate a model, loaded by func

async Task<Model> LoadModel() => await Repository.GetById(id);

var context = new Validation<ValidationContract>()
    .Load(LoadModel)
    .Add(SampleRule);

Validate multiple models

var context1 = new Validation<ValidationResult>()
    .Load(input1)
    .Add(SampleRule);

var context2 = new Validation<ValidationResult>()
    .Load(input2)
    .Add(SampleRule2);

var result = await Validation<ValidationResult>.ValidateAllAsync(context1, context2);

Validate with custom result class

You can define your own result class with additional fields.
This can be used to add something like an errorCode or an errorMessage by your rules.

var context = new Validation<CustomValidationResult>()
    .Load(input)
    .Add(SampleRuleWithErrorCode);

var result = await context.ValidateAsync();

public static CustomValidationResult SampleRuleWithErrorCode(string input)
{
    return string.IsNullOrEmpty(input)
        ? new CustomValidationResult(ErrorCode.Error)
        : new CustomValidationResult();
}

public class CustomValidationResult : ValidationResult
{
    public ErrorCode ErrorCode { get; set; }

    public CustomValidationResult()
    {
        Succeeded = true;
    }

    public CustomValidationResult(ErrorCode errorCode)
    {
        Succeeded = false;
        ErrorCode = errorCode;
    }
}

public enum ErrorCode
{
    Ok,
    Error,
}

Contribute

How to publish package

• Create a tag and let the github action do the publishing for you