Web3data.js Send Raw Transaction

require('dotenv').config(); // Load your environment variables with 'dotenv' const EthereumTx = require('ethereumjs-tx').Transaction; const { privateToAddress } = require('ethereumjs-util'); const Web3Data = require("web3data-js"); const w3d = new Web3Data(process.env.API_KEY); const TO_ADDRESS = 'YOUR_ADDRESS'; const API_KEY = 'YOUR_API_KEY'; // Need one? see amberdata.io/onboarding const PRIV_KEY = Buffer.from('YOUR_PRIVATE_KEY', 'hex'); /** * Simple method that takes in a nonce and constructs the raw transaction * @param nonce the transaction nonce * @return {string} the raw transaction data */ const createTransactionObject = nonce => { // Create the transaction object const tx = new EthereumTx({ nonce: nonce, // <-- Set your nonce value here (should increment for every transaction) gasPrice: '0xF0E95B47', // 4041825095 Wei gasLimit: '0x5208', // 21000 Wei to: TO_ADDRESS, value: '0x38D7EA4C68000', // 0.0001Eth | the value to send }, {chain: 'rinkeby'}); // Sign the transaction with your private key (must set private key in .env file) tx.sign(PRIV_KEY); // Serialize the transaction (convert to raw data bits) and then convert to hex // This is the format that the transaction must be in to send a raw transaction. return `0x${tx.serialize().toString('hex')}`; }; // Derive the sender's public key (address) from the private key const sender = '0x' + privateToAddress(PRIV_KEY).toString('hex'); // Send the json rpc request to get the total number of transactions of // the sender address (this is used to select the correct nonce). // More info about the nonce: https://kb.myetherwallet.com/en/transactions/what-is-nonce/ const nonce = await w3d.eth.rpc("eth_getTransactionCount", [sender, "latest"]); // Convert nonce to an int, add 1 and then convert back to hex const rawTransaction = createTransactionObject('0x' + (parseInt(nonce) + 1).toString(16)); // Send the json rpc request to send a raw transaction with the object we just created const transactionHash = await w3d.eth.rpc("eth_sendRawTransaction", rawTransaction); // Log the link to where you can view that transaction on amberdata.io console.log(`https://ethereum-rinkeby.amberdata.io/transactions/0x${transactionHash}`);