ICacheService

Distributed cache abstraction.

Methods

Method	Return	Description
GetAsync<T>(string, CancellationToken)	Task<T?>	Get cached value
SetAsync<T>(string, T, TimeSpan?, CancellationToken)	Task	Set with expiration
SetWithSlidingExpirationAsync<T>(string, T, TimeSpan, CancellationToken)	Task	Sliding expiration
RemoveAsync(string, CancellationToken)	Task	Remove by key
RemoveByPatternAsync(string, CancellationToken)	Task	Remove by pattern
ExistsAsync(string, CancellationToken)	Task<bool>	Check if exists
GetOrCreateAsync<T>(string, Func<Task<T?>>, TimeSpan?, CancellationToken)	Task<T?>	Get or create

Usage

public class ProductService
{
    private readonly ICacheService _cache;
    private readonly IProductRepository _repo;

    public async Task<Product?> GetProductAsync(Guid id, CancellationToken ct)
    {
        var cacheKey = "product:"+id;
        return await _cache.GetOrCreateAsync(
            cacheKey,
            () => _repo.GetByIdAsync(id, ct),
            TimeSpan.FromMinutes(5),
            ct);
    }

    public async Task InvalidateProductAsync(Guid id, CancellationToken ct)
    {
        await _cache.RemoveAsync("product:"+id, ct);
    }
}