IMemoryCache Remove All

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---

 private readonly MemoryCacheEntryOptions _cacheOptions;

    private readonly ILogger<ClientImageCacheService> _logger;

    private readonly IMemoryCache _memoryCache;

    public ClientImageCacheService(RestClient client, IMemoryCache cache, NotificationsService notifications,

        ILogger<ClientImageCacheService> logger)

    {

        _logger = logger;

        _memoryCache = cache;

        _cacheOptions = new MemoryCacheEntryOptions()

            .SetSize(1)

            .SetSlidingExpiration(TimeSpan.FromHours(4));

        _notifications.SubscribeToNotification<string>(NotificationType.CacheEvict, Evict);

    }

 

public Task ClearCache()

    {

        var memCache = _memoryCache as MemoryCache;

        if (memCache is not null)

        {

            // Force the cache to compact 100% of the memory

            memCache.Compact(1.0);

        }

        return Task.CompletedTask;

    }