public async Task <List <PublicationViewModel> > GetMainFeed(int amount, Guid?positionId, Guid?requestUserId)
{
if (amount <= 0)
{
throw new ArgumentOutOfRangeException(nameof(amount), "Amount must be greater than 0");
}
if (amount > MaxPublicationAmount)
{
throw new ArgumentOutOfRangeException(nameof(amount), $"Amount cannot be greater than {MaxPublicationAmount}");
}
if (positionId.HasValue && !await PublicationService.Exists(positionId.Value))
{
throw new DataNotFoundException($"{positionId.Value} does not exists.");
}
return((await FeedRepository.GetMainFeed(amount, positionId, requestUserId)).ToList());
}