celo_deploy.js

const Web3 = require('web3')
const ContractKit = require('@celo/contractkit')
const web3 = new Web3('https://alfajores-forno.celo-testnet.org')
const privateKeyToAddress = require('@celo/utils/lib/address').privateKeyToAddress
const kit = ContractKit.newKitFromWeb3(web3)
require('dotenv').config()
const HelloWorld = require('./build/contracts/HelloWorld.json')

async function awaitWrapper(){    
    kit.connection.addAccount(process.env.PRIVATE_KEY) // this account must have a CELO balance to pay transaction fees

    // This account must have a CELO balance to pay tx fees 
    // get some testnet funds at https://celo.org/build/faucet
    const address = privateKeyToAddress(process.env.PRIVATE_KEY)
    console.log(address)

    let tx = await kit.connection.sendTransaction({
        from: address,
        data: HelloWorld.bytecode
    })

    const receipt = await tx.waitReceipt()
    console.log(receipt)
}

awaitWrapper()