public async Task <DocumentData> Load(Address sender, Signature signature, Hash hash)
{
Verify(sender, signature, hash);
var document = await dataService.Load(hash);
if (document == null)
{
throw new NotFoundException();
}
bool canView = await blockChainService.CanViewDocument(sender, hash);
if (!canView)
{
throw new UnAuthorizedAccessException();
}
var stream = await storageService.Load(document.Hash);
return(new DocumentData(document.Name, stream, document.When, document.Hash));
}
