public async Task <ActionResult <PaginationResponse <WalletBalanceContract> > > Get(int take, string continuation)
{
if (take <= 0)
{
return(BadRequest(BlockchainErrorResponse.Create("'take' must be grater than zero")));
}
if (!Validators.ValidateAzureContinuation(continuation))
{
return(BadRequest(BlockchainErrorResponse.Create("'continuation' must be null or valid Azure continuation token")));
}
IEnumerable <DepositWalletBalanceEntity> balances;
if (_api.CanGetBalances)
{
// to be able to enroll fake transfers properly
// we keep block number increased by one order of magnitude
var lastConfirmedBlock = await _api.GetLastConfirmedBlockNumberAsync() * 10;
var depositWallets = await _depositWallets.GetWalletsAsync(take, continuation);
var addresses = depositWallets.items.Select(w => w.Address).ToArray();
continuation = depositWallets.continuation;
balances = (await _api.GetBalancesAsync(addresses, async assetId => await _assets.GetAsync(assetId)))
.Select(b => new DepositWalletBalanceEntity(b.Address, b.AssetId)
{
Amount = b.Amount,
BlockNumber = lastConfirmedBlock
});
}
else
{
(balances, continuation) =
await _depositWallets.GetBalanceAsync(take, continuation);
}
var result = new List <WalletBalanceContract>();
foreach (var balance in balances)
{
// blockchain may return unknown assets,
// filter out such items
var accuracy = (await _assets.GetAsync(balance.AssetId))?.Accuracy;
if (accuracy == null)
{
continue;
}
result.Add(new WalletBalanceContract
{
Address = balance.Address,
AssetId = balance.AssetId,
Balance = Conversions.CoinsToContract(balance.Amount, accuracy.Value),
Block = balance.BlockNumber
});
}
return(PaginationResponse.From(continuation, result));
}
