public async Task <CreateOrderResponse> CreateOrderAsync(CreateOrderRequest request)
{
var result = new CreateOrderResponse();
var errors = Enumerable.Empty <string>() as ICollection <string>;
try
{
var spec = new ValidCreateOrderRequestSpecification();
if (spec.IsSatisfiedBy(request, ref errors))
{
await this.dataGateway.InsertOrderAsync(request.AsEntity());
}
else
{
result.SetError(Errors.CreateValidationError, errors);
}
}
catch (Exception ex)
{
this.logger.WriteException(ex);
throw new OrderServiceException(ex);
}
return(result);
}
public async Task <CreateOrderResponse> CreateOrderAsync(CreateOrderRequest request)
{
var result = new CreateOrderResponse();
ICollection <string> errors = new Collection <string>();
try
{
//// Validate using Specification classes. You can leverage factories to inject
//// your specifications if it touches the database
var spec = new ValidCreateOrderRequestSpecification();
if (spec.IsSatisfiedBy(request, ref errors))
{
//// Decouple Service Models from Shared models i.e. Create `AsEntity` extension to convert vice-versa
await this.dataGateway.InsertOrderAsync(request.AsEntity());
}
else
{
//// Communicate Specification-added errors, and return appropriate error.
result.SetError(Errors.CreateValidationError, errors);
}
}
catch (Exception ex)
{
//// Log and Wrap exception then rethrow
this.logger.WriteException(ex);
throw new OrderServiceException(ex);
}
return(result);
}