public async Task <bool> AssignPermissionAsync(string permissionId, string userId) { if (string.IsNullOrWhiteSpace(permissionId) || string.IsNullOrWhiteSpace(userId)) { return(false); } var operation1IsOk = await _permissionsService.AssignUserPermissionsAsync(permissionId, userId); var operation2IsOk = await _permissionsService.AssignPermissionUsersAsync(permissionId, userId); return(operation1IsOk && operation2IsOk); }