Some snippets for self testing on local node of IOST blockchain. Feel free to use for testing, and feel free to star🌟if it's useful to you. 🚀

rpc.js

const IOST = require('iost')
const bs58 = require('bs58');
const config = require("./config.dev.json")
/* config.dev.json like this:
{
    "rpcURL": "http://localhost:30001",
    "privKey": "2yquS3ySrGWPEKywCPzX4RTJugqRh7kJSo5aehsLYPEWkUxBWA39oMrZ7ZxuM4fgyXYs2cPwh5n8aNNpH5x2VyK1"
}
*/

// init iost sdk
let iost = new IOST.IOST({ // will use default setting if not set
    gasPrice: 100,
    gasLimit: 2000000,
    delay: 0,
}, new IOST.HTTPProvider(config.rpcURL));

// use RPC
const rpc = new IOST.RPC(new IOST.HTTPProvider(config.rpcURL));
iost.setRPC(rpc);

// init admin account
const account = new IOST.Account("admin");
const kp = new IOST.KeyPair(bs58.decode(config.privKey));
account.addKeyPair(kp, "active");
iost.setAccount(account);

const getContractStorage = async (contractId, key, field) => {
    let result = await rpc.blockchain.getContractStorage(contractId, key, field, true);
    return result["data"]
}

module.exports = {
    getContractStorage
}