How to transfer ETH on Rinkeby using ethers.js

Question

Is there anybody who can help me with transfer ETH programmatically using ethers.js?

I have some ETH on Rinkeby and want to transfer it to any address programmatically.

Please let me know the address of ETH contract and how to transfer using ethers.js.

Answer 1

First, I suggest reading about the ethers.js library. This is a great library for working with evm networks.

Then let's consider two options:

1. sending with wallet like Metamask;
2. sending without wallet using private key.

Let's start with the wallet option. This example can be found on the ethers.js documentation site:

// A Web3Provider wraps a standard Web3 provider, which is
// what MetaMask injects as window.ethereum into each page
const provider = new ethers.providers.Web3Provider(window.ethereum)

// MetaMask requires requesting permission to connect users accounts
Await provider.send("eth_requestAccounts", []);

// The MetaMask plugin also allows signing transactions to
// send ether and pay to change state within the blockchain.
// For this, you need the account signer...
const signer = provider.getSigner()

// Sending 1 ETH
const tx = signer.sendTransaction({
    to: destAddress,
    value: ethers.utils.parseEther("1.0")
});

Now an option if we don't have a wallet like Metamask, but we have a private key:

// The JsonRpcProvider is a popular method for interacting with Ethereum
const provider = new ethers.providers.JsonRpcProvider("ADDRESS OF RINKEBY RPC");

// Create a new Wallet instance for privateKey and connected to the provider.
const wallet = new Wallet("TOP SECRET PRIVATE KEY", provider);

// Sending 1 ETH
wallet.sendTransaction({
    to: destAddress,
    value: ethers.utils.parseEther("1.0")
})