public async Task <UpdateStepArtifactResponse> Put(UpdateStepArtifactRequest request) { if (!await batchRepository.DoesBatchExist(request.BatchId)) { throw Err.BatchNotFound(request.BatchId); } var step = await stepRepository.Get(request.BatchId, request.StepName); if (step == null) { throw Err.StepNotFound(request.StepName); } var existingStepArtifact = await stepRepository.GetStepArtifact(step.Id, request.ArtifactName); if (existingStepArtifact == null) { throw Err.StepArtifactNotFound(request.ArtifactName); } var stepArtifact = request.ConvertTo <StepArtifact>(); stepArtifact.StepId = step.Id; stepArtifact.Id = existingStepArtifact.Id; await stepRepository.UpdateStepArtifact(stepArtifact); return(new UpdateStepArtifactResponse()); }