public async Task <Category> GetCategoryAsync(int categoryId)
{
string cacheFileName = string.Format("CategoryId{0}", categoryId);
try
{
// Retrieve the items from the cache
return(await _cacheService.GetDataAsync <Category>(cacheFileName));
}
catch (FileNotFoundException)
{
}
// Retrieve the items from the service
var category = await _productCatalogService.GetCategoryAsync(categoryId);
// Save the items in the cache
await _cacheService.SaveDataAsync(cacheFileName, category);
return(category);
}