public async Task <Either <BaseError, Unit> > Handle(
AddMusicVideoToCollection request,
CancellationToken cancellationToken)
{
await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
Validation <BaseError, Parameters> validation = await Validate(dbContext, request);
return(await LanguageExtensions.Apply(
validation,
parameters => ApplyAddMusicVideoRequest(dbContext, parameters)));
}
private static async Task <Validation <BaseError, Parameters> > Validate(
TvContext dbContext,
AddMusicVideoToCollection request) =>
(await CollectionMustExist(dbContext, request), await ValidateMusicVideo(dbContext, request))
