CacheRepository.cs

public class CacheRepository<T> : IRepository<T>
{
    private readonly IMemoryCache _cache;
    private readonly EfRepository<T> _repository;

    public CacheRepository(IMemoryCache cache, EfRepository<T> repository)
    {
        _cache = cache;
        _repository = repository;
    }

    public async Task<List<T>> List(ISpecification<T> specification, CancellationToken cancellationToken = default)
    {
        return await _memoryCache.GetOrCreateAsync(specification.CacheKey, async entry =>
        {
            entry.SlidingExpiration = TimeSpan.FromMinutes(15);
            return await _repository.List(specification, cancellationToken);
        });
    }
    
    // The rest of the implementation....
}