TekH
a7cfb099fa
Introduced ReadSingleEnvelopeDocResultQuery and its handler to fetch an envelope's document as a byte array via MediatR. Throws NotFoundException if the document is missing. Includes XML documentation for clarity.
41 lines
1.4 KiB
C#
41 lines
1.4 KiB
C#
using MediatR;
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using EnvelopeGenerator.Application.Common.Query;
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using EnvelopeGenerator.Application.Common.Dto;
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using DigitalData.Core.Exceptions;
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namespace EnvelopeGenerator.Application.Envelopes.Queries;
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/// <summary>
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/// Repräsentiert eine Abfrage für Umschläge.
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/// </summary>
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/// <param name="Envelope"></param>
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public record ReadSingleEnvelopeDocResultQuery(ReadSingleEnvelopeQuery Envelope) : EnvelopeQueryBase, IRequest<byte[]>;
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/// <summary>
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/// Verarbeitet <see cref="ReadEnvelopeQuery"/> und liefert passende <see cref="EnvelopeDto"/>-Ergebnisse.
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/// </summary>
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public class ReadSingleEnvelopeDocResultQueryHandler : IRequestHandler<ReadSingleEnvelopeDocResultQuery, byte[]>
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{
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private readonly IMediator _mediator;
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/// <summary>
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///
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/// </summary>
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/// <param name="mediator"></param>
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public ReadSingleEnvelopeDocResultQueryHandler(IMediator mediator)
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{
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_mediator = mediator;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="request"></param>
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/// <param name="cancellationToken"></param>
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/// <returns></returns>
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public async Task<byte[]> Handle(ReadSingleEnvelopeDocResultQuery request, CancellationToken cancellationToken)
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{
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var result = await _mediator.Send(request.Envelope, cancellationToken);
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return result.DocResult ?? throw new NotFoundException($"Document for Envelope with ID {request.Envelope.Id} not found");
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}
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} |