/// <summary>
/// Get an array of all AccountBalances for an AccountIdentifier and the BlockIdentifier at which the balance lookup was performed.
/// The BlockIdentifier must always be returned because some consumers of account balance data need to know specifically at which block
/// the balance was calculated to compare balances they compute from operations with the balance returned by the node.
/// It is important to note that making a balance request for an account without populating the SubAccountIdentifier should not
/// result in the balance of all possible SubAccountIdentifiers being returned.
/// Rather, it should result in the balance pertaining to no SubAccountIdentifiers being returned (sometimes called the liquid balance).
/// To get all balances associated with an account, it may be necessary to perform multiple balance requests with unique AccountIdentifiers.
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public JObject AccountBalance(AccountBalanceRequest request)
{
DataCache snapshot = system.StoreView;
BlockIdentifier respBlockIdentifier;
if (request.NetworkIdentifier?.Blockchain?.ToLower() != "neo n3")
{
return(Error.NETWORK_IDENTIFIER_INVALID.ToJson());
}
if (request.NetworkIdentifier?.Network?.ToLower() != network)
{
return(Error.NETWORK_IDENTIFIER_INVALID.ToJson());
}
if (request.AccountIdentifier is null)
{
return(Error.ACCOUNT_IDENTIFIER_INVALID.ToJson());
}
if (request.BlockIdentifier is null)
{
respBlockIdentifier = new(NativeContract.Ledger.CurrentIndex(system.StoreView), NativeContract.Ledger.CurrentHash(system.StoreView).ToString());
}
else if (request.BlockIdentifier.Index is null && request.BlockIdentifier.Hash is null)
{
return(Error.BLOCK_IDENTIFIER_INVALID.ToJson());
}
public JObject AccountBalance(AccountBalanceRequest request)
{
if (request.AccountIdentifier is null)
{
return(Error.ACCOUNT_IDENTIFIER_INVALID.ToJson());
}
UInt160 account;
try
{
account = request.AccountIdentifier.Address.ToScriptHash();
}
catch (Exception)
{
return(Error.ACCOUNT_ADDRESS_INVALID.ToJson());
}
// can only get current balance
Amount[] balances = GetUtxoBalance(account);
if (balances is null)
{
return(Error.ACCOUNT_NOT_FOUND.ToJson());
}
if (request.AccountIdentifier.SubAccountIdentifier != null) // then need to get the nep5 balance
{
if (!UInt160.TryParse(request.AccountIdentifier.SubAccountIdentifier.Address, out UInt160 scriptHash))
{
return(Error.CONTRACT_ADDRESS_INVALID.ToJson());
}
Amount[] nep5Balances = GetNep5Balance(scriptHash, account);
if (nep5Balances is null)
{
return(Error.VM_FAULT.ToJson());
}
balances = balances.Concat(nep5Balances).ToArray();
}
NeoBlock currentBlock = Blockchain.Singleton.GetBlock(Blockchain.Singleton.CurrentBlockHash);
BlockIdentifier blockIdentifier = new BlockIdentifier(currentBlock.Index, currentBlock.Hash.ToString());
AccountBalanceResponse response = new AccountBalanceResponse(blockIdentifier, balances);
return(response.ToJson());
}
