public static TItem GetOrCreate <TItem>(this IMemoryCacheManager cache, object key, Func <ICacheEntry, TItem> factory)
{
if (!cache.TryGetValue(key, out var result))
{
var entry = cache.CreateEntry(key);
result = factory(entry);
entry.SetValue(result);
entry.Dispose();
}
return((TItem)result);
}
public static async Task <TItem> GetOrCreateAsync <TItem>(this IMemoryCacheManager cache, object key, Func <ICacheEntry, Task <TItem> > factory)
{
if (!cache.TryGetValue(key, out object result))
{
var entry = cache.CreateEntry(key);
result = await factory(entry);
entry.SetValue(result);
entry.Dispose();
}
return((TItem)result);
}
public async Task <IEnumerable <CategoryDto> > Handle(GetCategoriesQuery request, CancellationToken cancellationToken)
{
if (!_memoryCacheManager.TryGetValue(nameof(GetCategoriesQuery), out IEnumerable <CategoryDto> categoryDtos))
{
var categories = await _unitOfWork.Categories.GetAllAsync();
categoryDtos = categories.Select(c => new CategoryDto
{
Id = c.Id,
Name = c.Name
});
_memoryCacheManager.Set(nameof(GetCategoriesQuery), categoryDtos);
}
return(categoryDtos);
}
