pyth-network_pyth-crosschain/terra/tools/migrate_testnet.js

import { LCDClient, MnemonicKey } from "@terra-money/terra.js";
import {
  MsgMigrateContract,
} from "@terra-money/terra.js";
import axios from "axios";
import yargs from "yargs";
import { hideBin } from "yargs/helpers";

export const TERRA_GAS_PRICES_URL = "https://fcd.terra.dev/v1/txs/gas_prices";

const argv = yargs(hideBin(process.argv))
  .option('code_id', {
    description: 'Which code id to upgrade to',
    type: 'number',
  })
  .option('mnemonic', {
    description: 'Mnemonic (private key)',
    type: 'string',
    required: true
  })
  .option('contract', {
    description: 'Contract to upgrade',
    type: 'string',
    required: true
  })
  .help()
  .alias('help', 'h').argv;

/* Set up terra client & wallet */

const terra_host = {
  URL: "https://bombay-lcd.terra.dev",
  chainID: "bombay-12",
  name: "testnet",
};

const lcd = new LCDClient(terra_host);

const feeDenoms = ["uluna"];

const gasPrices = await axios
  .get(TERRA_GAS_PRICES_URL)
  .then((result) => result.data);

const wallet = lcd.wallet(
  new MnemonicKey({
    mnemonic: argv.mnemonic
  })
);

await wallet.sequence();

/* Do upgrade */

const tx = await wallet.createAndSignTx({
  msgs: [
    new MsgMigrateContract(
      wallet.key.accAddress,
      argv.contract,
      argv.code_id,
      {
        "action": ""
      },
      { uluna: 1000 }
    ),
  ],
  memo: "",
  feeDenoms,
  gasPrices,
});

const rs = await lcd.tx.broadcast(tx);
console.log(rs);