private string GetApiKeyMessage()
{
var apiKey = Request.Headers[KeyAuthOptions.DefaultHeaderName];
if (string.IsNullOrEmpty(apiKey))
{
throw new InvalidOperationException("Api Key is null");
}
var apiKeyName = _apiKeyService.GetKeyName(apiKey);
if (string.IsNullOrEmpty(apiKeyName))
{
throw new InvalidOperationException("Api key name does not exists for such key");
}
return($"API key '{apiKeyName}' is used");
}