为一个未签名的交易，添加备注
用法
tronWeb.transactionBuilder.addUpdateData(unsignedTransaction,memo);
参数类型
| 参数 | 描述 | 类型 |
|---|---|---|
| unsignedTransaction | 未签名的交易对象 | JSON |
| memo | 要给交易添加的备注信息 | string |
返回类型
object
Note
“addUpdateData” 执行成功之后会生成新的Transaction对象，TransactionId 也会发生变化，后续签名请基于新的Transction 对象进行。
示例
>var txn = await tronWeb.transactionBuilder.sendTrx("TUoHaVjx7n5xz8LwPRDckgFrDWhMhuSuJM", 100, "TUznHJfHe6gdYY7gvWmf6bNZHuPHDZtowf");
>var nexTxn = await tronWeb.transactionBuilder.addUpdateData(txn,"test");
>var signedtxn = await tronWeb.trx.sign(nexTxn, privateKey);
>console.log(nexTxn)
> {
visible: false,
txID: "8c3a4b4c20cfdf8df340905949a8241aee639492e0c4d73f1bf18847346444f1",
raw_data: {
contract: [ [Object] ],
data: "74657374", // this is the HexString of memo.
expiration: 1628073045000,
ref_block_bytes: "7254",
ref_block_hash: "c45fff3a6a0347cc",
timestamp: 1628072986845
},
raw_data_hex: "0a0272542208c45fff3a6a0347cc4088d8dc85b12f5204746573745a65080112610a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412300a1541d0b69631440f0a494bb51f7eee68ff5c593c00f0121541ce8a0cf0c16d48bcf22825f6053248df653c89ca186470dd91d985b12f"
}