How to Get Transaction Record Receiver

[Cecil-cc]

Transaction Bean No recipient

How to Get Recipient According to TXHASH

[NashMiao]

Currently, we can think user have two kinds of asset - native asset and NEO vm contract asset.

Native Asset

Ontology uses a dual token (ONT and ONG) model. ONT is the coin and can be used for staking in consensus, whereas ONG is the utility token used for on-chain services.

Since the Ontology MainNet went live on June 30th, 2018, MainNet ONT has started to release ONG periodically.

Both ONT and ONG are based on native vm contract, you can find the code in here and here.

So, If you want to get the token's receiver, you need to do by following step:

1. Get the transaction in blockchain by TxHash .

String txHash = "f3c0f8bfb11531f534ac832b20865c60ea6eb41d7371c38b9a1e006871c56087";
String txJson = (String) ontSdk.getConnect().getTransactionJson(txHash);

2. Get the Payload in transaction.

JSONObject tx = JSON.parseObject(txJson);
System.out.println(tx.getString("Payload"));

3. Decode the invoke code in payload by hand.

payload: 00c66b6a14675e90df552510f7485cbb947472bbfb1ccef3d6c86a143a5f33fe68147164f2fbc523d18c5a065956fed0c86a55c86c51c1087472616e736665721400000000000000000000000000000000000000010068164f6e746f6c6f67792e4e61746976652e496e766f6b65

$ python
>>> from ontology.utils.contract_data import ContractDataParser
>>> ContractDataParser.to_int('14')
20
>>> ContractDataParser.to_b58_address('46b1a18af6b7c9f8a4602f9f73eeb3030f0c29b7')
'ANDfjwrUroaVtvBguDtrWKRMyxFwvVwnZD'
>>> ContractDataParser.to_int('14')
20
>>> ContractDataParser.to_b58_address('feec06b79ed299ea06fcb94abac41aaf3ead7658')
'Af1n2cZHhMZumNqKgw9sfCNoTWu9de4NDn'
>>> ContractDataParser.to_int('08')
8
>>> ContractDataParser.to_utf8_str('7472616e73666572')
'transfer'
>>> ContractDataParser.op_code_to_int('51')
1
>>> ContractDataParser.to_int('16')
22
>>> ContractDataParser.to_utf8_str('4f6e746f6c6f67792e4e61746976652e496e766f6b65')
'Ontology.Native.Invoke'
>>> len('Ontology.Native.Invoke')
22

For more information, you can visit here.

Neo Vm Contract Asset

All the Neo Vm contract assets are based on smart contract. If you want to get the token's receiver, you need to do by following step:

1. Get the transaction in blockchain by TxHash .

String txHash = "f3c0f8bfb11531f534ac832b20865c60ea6eb41d7371c38b9a1e006871c56087";
String txJson = (String) ontSdk.getConnect().getTransactionJson(txHash);

2. Get the Payload in transaction.

JSONObject tx = JSON.parseObject(txJson);
System.out.println(tx.getString("Payload"));

3. Decode the invoke code in payload by hand.

OEP-4, OEP-5 and OEP5 are more easier to decode, you can read the code structure in here.

$ python
>>> from ontology.utils.contract_data import ContractDataParser
>>> ContractDataParser.op_code_to_int('5a')
10
>>> ContractDataParser.to_int('14')
20
>>> ContractDataParser.to_b58_address('feec06b79ed299ea06fcb94abac41aaf3ead7658')
'Af1n2cZHhMZumNqKgw9sfCNoTWu9de4NDn'
>>> ContractDataParser.to_b58_address('46b1a18af6b7c9f8a4602f9f73eeb3030f0c29b7')
'ANDfjwrUroaVtvBguDtrWKRMyxFwvVwnZD'
>>> ContractDataParser.op_code_to_int('53')
3
>>> ContractDataParser.to_int('08')
8
>>> ContractDataParser.to_reserve_hex_str('e94e5c8c35a9979e41ff712b9e9d3e7482b6db1d')
'1ddbb682743e9d9e2b71ff419e97a9358c5c4ee9'