public async Task <IActionResult> CreateAsync([FromBody] AdvertisementEntry advertisementEntry)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (!await _channelService.ChannelsExistAsync(advertisementEntry.ChannelIds))
{
return(BadRequest());
}
var advertisement = await _advertisementService.CreateAsync(advertisementEntry);
return(CreatedAtAction(nameof(GetByIdAsync), new { id = advertisement.Id }, null));
}
