send-transaction.js

const OverledgerSDK = require('@quantnetwork/overledger-bundle').default;

//  ---------------------------------------------------------
//  -------------- BEGIN VARIABLES TO UPDATE ----------------
//  ---------------------------------------------------------
const mappId = '<ENTER YOUR MAPPID>';
const bpiKey = '<ENTER YOUR BPIKEY>';

// Paste in your ethereum and ripple private keys.
// For Ethereum you can generate an account using `OverledgerSDK.dlts.ethereum.createAccount` then fund the address at the Ropsten Testnet Faucet.
const partyAEthereumPrivateKey = '0xe352ad01a835ec50ba301ed7ffb305555cbf3b635082af140b3864f8e3e443d3';
const partyAEthereumAddress = '0x650A87cfB9165C9F4Ccc7B971D971f50f753e761'
// For Ripple, you can go to the official Ripple Testnet Faucet to get an account already funded.
const partyARipplePrivateKey = 'sswERuW1KWEwMXF6VFpRY72PxfC9b';
const partyARippleAddress = 'rhTa8RGotyJQAW8sS2tFVVfvcHYXaps9hC'


const partyBEthereumAddress = '0x1a90dbb13861a29bFC2e464549D28bE44846Dbe4';
// Keep in mind that for Ripple, the minimum transfer amount is 20XRP (20,000,000 drops), if the address is not yet funded.
const partyBRippleAddress = 'rHVsZPVPjYJMR3Xa8YH7r7MapS7s5cyqgB';

//  ---------------------------------------------------------
//  -------------- END VARIABLES TO UPDATE ------------------
//  ---------------------------------------------------------

const overledger = new OverledgerSDK(mappId, bpiKey, {
  dlts: [{ dlt: 'ethereum' }, { dlt: 'ripple' }],
  provider: {
    network: 'testnet',
    timeout: 10000,
  },
});

const transactionMessage = 'Hello world!';

; (async () => {
  try {
    // SET partyA accounts for signing;
    overledger.dlts.ethereum.setAccount(partyAEthereumPrivateKey);
    overledger.dlts.ripple.setAccount(partyARipplePrivateKey);

    // Get the address sequences.
    const ethereumSequenceRequest = await overledger.dlts.ethereum.getSequence(partyAEthereumAddress);
    const rippleSequenceRequest = await overledger.dlts.ripple.getSequence(partyARippleAddress);
    const ethereumAccountSequence = ethereumSequenceRequest.data.dltData[0].sequence;
    const rippleAccountSequence = rippleSequenceRequest.data.dltData[0].sequence;

    console.log("The transaction sequence of our Ethereum account is: ", ethereumAccountSequence);
    console.log("The transaction sequence of our Ripple account is: ", rippleAccountSequence);


    // Sign the transactions.
    const signedTransactions = await overledger.sign([
    {
      // In order to prepare an ethereum transaction offline, we have to specify the sequence (nonce), a feePrice (gasPrice) and feeLimit (gasLimit).
      dlt: 'ethereum',
      toAddress: partyBEthereumAddress,
      message: transactionMessage,
      options: {
        amount: '0', // On Ethereum you can send 0 amount transactions. But you still pay network fees
        sequence: ethereumAccountSequence, // Sequence starts at 0 for newly created addresses
        feePrice: '1000', // Price for each individual gas unit this transaction will consume
        feeLimit: '80000', // The maximum fee that this transaction will use
      },
    },
    {
      // In order to prepare a ripple transaction offline, we have to specify a fee, sequence and maxLedgerVersion.
      dlt: 'ripple',
      toAddress: partyBRippleAddress,
      message: transactionMessage,
      options: {
        amount: '1', // Minimum allowed amount of drops is 1.
        sequence: rippleAccountSequence, // Sequence increases by 1 with each transaction and starts at 1 right after getting the address from the XRP testnet faucet.
        feePrice: '12', // Minimum feePrice on Ripple is 12 drops.
        maxLedgerVersion: '4294967295', // The maximum ledger version the transaction can be included in.
      },
    },]);

    // Send the transactions to Overledger.
    const result = (await overledger.send(signedTransactions)).data;

    // Log the result.
    console.log(JSON.stringify(result, null, 2));

  } catch (e) {
    console.error('error:', e);
  }
})();