Version: 5.3.0 - 5.3.1

addUpdateData

add memo to an unsigned transaction

Usage

tronWeb.transactionBuilder.addUpdateData(unsignedTransaction, memo, dataFormat, options);

Parameters

Argument	Description	Type
unsignedTransaction	unsigned transaction object	JSON
memo	memo info	string
dataFormat	`hex` or other type	string
options	options for addUpdateData, if txLocal is true, it will build locally	object

Returns

Object

Note

The Transaction hash(Transaction ID) will be changed after "addUpdateData" was executed as a new transaction object is generated. Please use the newly generated Transactions for subsequent processes like sign or broadcast. thanks.

Example

> 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"
}