public async Task <bool> UpdateAuthorization() { if (!_authorizationModified) { return(false); } const string AuthorizationHeader = "Authorization"; if (Client.DefaultRequestHeaders.Contains(AuthorizationHeader)) { Client.DefaultRequestHeaders.Remove(AuthorizationHeader); } switch (_authorizationType) { default: _authorizationModified = false; return(false); case AuthorizationType.Bearer: if (_bearerToken != null) { var tokenValue = await _bearerToken.Token(); Client.DefaultRequestHeaders.Add(AuthorizationHeader, $"Bearer {tokenValue}"); } _authorizationModified = false; return(true); case AuthorizationType.Basic: if (_basicAuthorization != null) { Client.DefaultRequestHeaders.Add(AuthorizationHeader, $"Basic {_basicAuthorization.Token}"); } _authorizationModified = false; return(true); } }