public async Task <Guid> AddPermission(AddPermissionCommand command, CancellationToken cancellationToken)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
command.EnsureIsValid();
var persistedPermission = await authorizationRepository.GetPermissionsBy(command.Domain, command.Resource, cancellationToken : cancellationToken).ConfigureAwait(false);
if (persistedPermission?.Count > 0)
{
throw new BusinessException(Messages.PermissionAlreadyExist);
}
var permission = new Permission()
{
Domain = command.Domain,
Name = command.Name,
Resource = command.Resource
};
await authorizationRepository.AddPermission(permission, cancellationToken).ConfigureAwait(false);
return(permission.Id);
}