42 lines
1.2 KiB
C#
42 lines
1.2 KiB
C#
namespace Indotalent.ConfigBackEnd.Behaviours;
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using FluentValidation;
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using MediatR;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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public class ValidationBehaviour<TRequest, TResponse> : IPipelineBehavior<TRequest, TResponse>
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where TRequest : IRequest<TResponse>
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{
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private readonly IEnumerable<IValidator<TRequest>> _validators;
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public ValidationBehaviour(IEnumerable<IValidator<TRequest>> validators)
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{
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_validators = validators;
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}
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public async Task<TResponse> Handle(TRequest request, RequestHandlerDelegate<TResponse> next, CancellationToken cancellationToken)
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{
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if (_validators.Any())
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{
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var context = new ValidationContext<TRequest>(request);
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var validationResults = await Task.WhenAll(
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_validators.Select(v => v.ValidateAsync(context, cancellationToken)));
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var failures = validationResults
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.SelectMany(r => r.Errors)
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.Where(f => f != null)
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.ToList();
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if (failures.Count != 0)
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{
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throw new ValidationException(failures);
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}
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}
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return await next();
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}
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} |