public async Task <Result <Contracts.Image, Contracts.Error> > ReplaceAsync(string galleryName, string imageId, byte[] data, byte[] meta)
{
var result = await Name.FromString(galleryName)
.AndThenAsync(name => Id.FromString(imageId)
.AndThenAsync(id => _uploadService.ReplaceAsync(name, id, data, meta?.Length > 0 ? Option.Some(meta) : Option.None())));
return(result.Map(ToContract, ErrorExtensions.ToContract));
}