private async Task <bool> CheckMembershipAsync(string memberId, string tenantId, int?level)
{
var isMember = false;
var cacheKey = $"member-{memberId}-tenant-{tenantId}";
var value = await _cache.GetStringAsync(cacheKey);
var entryExists = value != null;
if (entryExists)
{
bool.TryParse(value, out isMember);
return(isMember);
}
// This is the case that cache is unavalable or this is the first authorization call for this requirement/policy.
isMember = await _tenantStore.CheckAccessAsync(tenantId, memberId, level);
// Add to cache.
var cacheEntryOptions = new DistributedCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(5));
await _cache.SetStringAsync(cacheKey, $"{isMember}", cacheEntryOptions);
return(isMember);
}
