get_btc_address.js

//Run node get_btc_address.js
const prompts = require("prompts");
const ecc = require("tiny-secp256k1");
const ecpair = require("ecpair");
const ECPair = ecpair.ECPairFactory(ecc);


async function run() {

  const cliPrompts = [
    {
      type: "text",
      name: "publicKey",
      message:
        "Generic public key from turnkey (hex-encoded, starts with 04, 66 characters long)",
    },
  ];


  const { publicKey } = await prompts(cliPrompts);
  const pair = ECPair.fromPublicKey(Buffer.from(publicKey, "hex"));

  const compressedPublicKey = pair.publicKey.toString("hex");
  console.log("Compressed public key: " + compressedPublicKey);


  const p2shAddress = bitcoin.payments.p2sh({
    redeem: bitcoin.payments.p2wpkh({
      pubkey: pair.publicKey,
      network: bitcoin.networks.testnet,
    }),
  }).address;


  console.log("Testnet P2SH address: " + p2shAddress);

  // here's how can derive a P2PKH address (Pay-to-Public-Key-Hash)
  // P2PKH addresses are still in use in the Bitcoin ecosystem, but are
  // being phased out in favor of P2SH or native SegWit addresses.
  // ----
  // let p2pkhAddress = bitcoin.payments.p2pkh({
  //   pubkey: pair.publicKey,
  //   network: bitcoin.networks.testnet,
  // }).address;
  // console.log("Testnet P2PKH address: " + p2pkhAddress);

}

run().then((res) => console.log("...done!"));