public async Task <Unit> Handle(DeleteUserCommand request, CancellationToken cancellationToken)
{
ApplicationUser userToDelete = await _userStorage.FindByIdAsync(request.UserId)
.ConfigureAwait(false)
?? throw new NotFoundException(nameof(ApplicationUser), request.UserId);
IIdentityResult identityResult = await _userStorage.DeleteAsync(userToDelete)
.ConfigureAwait(false);
identityResult.ThrowIfFailed();
return(Unit.Value);
}