DelegateDeploy.js

/*
I was doing this using the Klaytn network which is basically a centralised Ethereum clone. 
The following code would work on Ethereum with a bit of a change - i.e. Caver to Web3
*/

/*
Example contract artificat addition:

  "networks": {
    "8217": {
      "events": {},
      "links": {},
      "address": "0x3973e66b65b0BdE40aDC747921fc9e5A74D11c55",
      "transactionHash": "0x31195434ee44bb48e5209b6103a2cb1a68dfae3c49bb1cd32f7ea5eab9dfd957"
    }
  }

*/

const Caver = require('caver-js');                                    // Swap for Web3.js
const caver = new Caver('https://api.cypress.klaytn.net:8651');       // Swap for Infura or similar.
const fs = require('fs');
const HackVibeContract = JSON.parse(fs.readFileSync("./client/src/contracts/HackVibes.json"));  // Artifact

const sender = caver.klay.accounts.wallet.add(Address); 
const payer = caver.klay.accounts.wallet.add(Address, PrivateKey);

async function run() {
  // Main deploy actions.
  // make sure `data` starts with 0x
  const { rawTransaction: senderRawTransaction } = await caver.klay.accounts.signTransaction({
      type: 'FEE_DELEGATED_SMART_CONTRACT_DEPLOY',  // This wouldn't be used in Ethereum
      from: sender.address,
      data: HackVibeContract.bytecode,              // From artifact pre-compile, $ truffle compile
      gas: '3000000',
      value: 0,
  }, sender.privateKey);

  // signed raw transaction
  console.log("Raw TX:\n", senderRawTransaction);

  // send fee delegated transaction with fee payer information
  caver.klay.sendTransaction({
      senderRawTransaction: senderRawTransaction,
      feePayer: payer.address
  })
      .on('transactionHash', function (hash) {
          console.log(">>> tx_hash for deploy =", hash);      //
      })
      .on('receipt', function (receipt) {
          console.log(">>> receipt arrived: ", receipt);    // Note this output
      })
      .on('error', function (err) {
          console.error(">>> error: ", err);
      });
}


async function testContract(address) {
  // Useful for a test interaction
  console.log('Testing Contract...')
    // Reference to the deployed contract
    var contract = await new caver.klay.Contract(HackVibeContract.abi, HackVibeContract.networks['8217']);

    // Assert initial account balance, should be 100000
    const balance1 = await contract.noCommitments.call();

    console.log(balance1)

}

//run();
testContract();