This script is a demo of how to use the ContractKit to send a transaction on the Celo network (https://celo.org)

index.js

#!/usr/bin/env node

/* 
  This script is a demo of how to use the ContractKit to send a transaction on the Celo network (https://celo.org)
  With npm installed, run this script with the command:
  npx https://gist.github.com/critesjosh/7dd9cdb3076d9d5874c061612af8057e
*/

// Import ContractKit
const ContractKit = require('@celo/contractkit')

// Create a new instance of ContractKit, connecting to Celo via the public API
const contractKit = ContractKit.newKit('https://alfajores-forno.celo-testnet.org')

// Specify an arbitrary recipient of the transaction
const recipient = '0xB9727f7f1e1f4a5229a49E260fBBBD410d10f2Ff'

// Specify an amount to trasnfer, and convert it to the appropriate units
const transferAmount = '0.10' 
const weiTransferAmount = contractKit.web3.utils.toWei(transferAmount, 'ether')

// If you want to create a new account: const account = kit.web3.eth.accounts.create();
// You can faucet an account here: https://celo.org/build/faucet

// Import an existing, funded account
const bankAccount = {
  privateKey: '0x51788d6e1eae7c73e1663d63404f8633ceffb3543005e6ab3509129caeb483d7',
  address: '0xFAfD7d820bf9294d344393A43cDB0F693e91Cfab'
}

// Add the account private key to contractKit so it can sign transactions
contractKit.addAccount(bankAccount.privateKey)

async function transferStableToken() {
  
  // Get the stable token (cUSD) contract
  const stableToken = await contractKit.contracts.getStableToken()
  
  // Get + print the balance of the bank account
  const balance = await stableToken.balanceOf(bankAccount.address)
  console.log(`Stable Token balance of ${bankAccount.address}: ${balance}`)
  
  // Transfer the specified amount to the specified recipient
  const tx = await stableToken.transfer(recipient, weiTransferAmount).send({
    from: bankAccount.address,
  })
  
  // Get + print the transaction hash
  const hash = await tx.getHash()
  console.log(`Transaction hash`,hash)
  
  // Get + print the transaction receipt
  const receipt = await tx.waitReceipt()
  console.log(`Tranaction receipt`, receipt)
  
  // Get + print the new account balance
  const newBalance = await stableToken.balanceOf(bankAccount.address);
  console.log(`Stable Token balance of ${bankAccount.address}: ${newBalance}`)
}

transferStableToken()

package.json

{
  "name": "contractkit-example",
  "version": "0.0.0",
  "bin": "./index.js",
  "dependencies": {
    "@celo/contractkit": "latest"
  }
}