public async Task <Result> Handle(Command request, CancellationToken cancellationToken)
{
var dbGuild = context.Guilds.FirstOrDefaultAsync(guild => guild.Id == request.GuildId);
if (dbGuild.IsNull())
{
throw new NotFoundException(request.GuildId, typeof(Guild));
}
var uploadRequest = mapper.Map <AudioFileDto>(request);
var audioUrl = await blobStorageService.UploadAudioFileForGuild(uploadRequest);
var dbSound = mapper.Map <Sound>(request);
dbSound.Url = audioUrl;
await context.AddAsync(dbSound);
await context.SaveChangesAsync();
var result = mapper.Map <Result>(dbSound);
return(result);
}