public async Task <ServiceResult <GetWidgetResponseDto> > GetWidgetAsync(GetWidgetRequestDto request, CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (string.IsNullOrEmpty(request.Id))
{
return(ServiceResult.Failure(ExampleApiErrors.CreateInvalidRequestMissingWidgetId()));
}
var widget = await m_repository.TryGetWidgetAsync(request.Id, cancellationToken).ConfigureAwait(false);
if (widget == null)
{
return(ServiceResult.Failure(ExampleApiErrors.CreateNotFoundWidget(request.Id)));
}
string eTag = CreateWidgetETag(widget);
if (request.IfNoneMatch == eTag)
{
return(ServiceResult.Success(new GetWidgetResponseDto {
NotModified = true, ETag = eTag
}));
}
return(ServiceResult.Success(new GetWidgetResponseDto {
Widget = widget, ETag = eTag
}));
}
public async Task <ServiceResult <EditWidgetResponseDto> > EditWidgetAsync(EditWidgetRequestDto request, CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (string.IsNullOrEmpty(request.Id))
{
return(ServiceResult.Failure(ExampleApiErrors.CreateInvalidRequestMissingWidgetId()));
}
return(ServiceResult.Success(await m_repository.EditWidgetAsync(request.Id, request.Ops, cancellationToken).ConfigureAwait(false)));
}
public async Task <ServiceResult <DeleteWidgetResponseDto> > DeleteWidgetAsync(DeleteWidgetRequestDto request, CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (string.IsNullOrEmpty(request.Id))
{
return(ServiceResult.Failure(ExampleApiErrors.CreateInvalidRequestMissingWidgetId()));
}
bool wasDeleted = await m_repository.TryDeleteWidgetAsync(request.Id, cancellationToken).ConfigureAwait(false);
if (!wasDeleted)
{
return(ServiceResult.Failure(ExampleApiErrors.CreateNotFoundWidget(request.Id)));
}
return(ServiceResult.Success(new DeleteWidgetResponseDto()));
}
public async Task <ServiceResult <GetWidgetBatchResponseDto> > GetWidgetBatchAsync(GetWidgetBatchRequestDto request, CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (request.Ids == null)
{
return(ServiceResult.Failure(ServiceErrors.CreateRequestFieldRequired("ids")));
}
if (request.Ids.Count == 0)
{
return(ServiceResult.Failure(ExampleApiErrors.CreateInvalidRequestMissingWidgetIds()));
}
var widgets = await m_repository.GetWidgetBatchAsync(request.Ids, cancellationToken).ConfigureAwait(false);
return(ServiceResult.Success(new GetWidgetBatchResponseDto
{
Results = widgets.Select((x, i) =>
x != null ? ServiceResult.Success(x) :
string.IsNullOrEmpty(request.Ids[i]) ? ServiceResult.Failure(ExampleApiErrors.CreateInvalidRequestMissingWidgetId()) :
ServiceResult.Failure(ExampleApiErrors.CreateNotFoundWidget(request.Ids[i]))).ToList()
}));
}