Create and sends a raw ether transaction with ether.js and Infura

sendRawEtherTransaction.js

const ethers = require('ethers');

const provider = new ethers.providers.JsonRpcProvider('https://ropsten.infura.io/v2/INFURA_PROJECT_ID');
const addressFrom = 'SENDER_ADDRESS';
const privateKey = 'SENDER_ADDRESS_PRIVATE_KEY';
const wallet = new ethers.Wallet(privateKey, provider);

const addressTo = 'RECEIVER_ADDRESS';


provider.getTransactionCount(addressFrom)
  .then((txCount) => {
    // construct the transaction data
    const txData = {
       nonce: txCount,
       gasLimit: 25000,
       gasPrice: 10e9, // 10 Gwei
       to: addressTo,
       value: ethers.utils.parseEther('0.1'), // 0.1 ether
     }
    const serializedTx = ethers.utils.serializeTransaction(txData);
    //console.log('serialized Tx: ', serializedTx);
    //console.log('parsed serialized tx: ', ethers.utils.parseTransaction(serializedTx));
    // parse unsigned serialized transaction and sign it
    wallet.sign(ethers.utils.parseTransaction(serializedTx))
      .then((signedSerializedTx) => {
        //console.log('signed serialized tx: ', signedSerializedTx);
        // broadcast signed serialized tx
        provider.sendTransaction(signedSerializedTx)
          .then((response) => {
            console.log('tx response: ', response);
          });
      });
  });