public async Task InvalidateCache(int productId, int userId)
{
string key = "user:"******"|product" + "|productId:" + productId;
await _cacheStorage.DeleteAsync(key);
// Delete all cache entries for this user
var invalidateCalls = new List <Task>();
var keys = _cacheStorage.ListKeys();
if (keys != null && keys.Count > 0)
{
foreach (var k in keys)
{
var parts = k.Split('|');
if (parts != null && parts.Length > 0)
{
var userPart = parts[0].Split(':');
if (userPart != null && userPart.Length > 1)
{
if (userPart[1] == userId.ToString())
{
invalidateCalls.Add(_cacheStorage.DeleteAsync(k)); // this deletes all cache entries for this user
}
}
}
}
}
await Task.WhenAll(invalidateCalls);
}
