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

iwallet.js

const shell = require('shelljs')
const fs = require('fs')

const iwallet = 'iwallet --amount_limit "*:unlimited|ram:10000" --gas_limit 3000000 '

// compile js contract to abi
const compile = (path) => {
    let cmd = 'iwallet compile ' + path
    console.log("👉", cmd)
    shell.exec(cmd)
    console.log("⛱ compile done")
}

// set amountLimit to unlimited in abi for easy test 
const updateABI = (abiPath) => {
    let abi = fs.readFileSync(abiPath, 'utf8')
    let regex = /"amountLimit"\: \[\],/gi;
    let replaced = abi.replace(regex, '"amountLimit": [{"token": "*","val": "unlimited"},{"token": "ram","val": "10000"}],')
    fs.writeFileSync(abiPath, replaced, 'utf8')
    console.log("⛱ update abi done")
}

// publish and get contract id
const publish = (jsPath, abiPath, account) => {
    let cmd = iwallet + 'publish ' + jsPath + ' ' + abiPath + ' --account ' + account
    console.log("👉", cmd)
    let result = shell.exec(cmd)
    let contractId = result.split("The contract id is: ")[1].trim()
    console.log("⛱ publish done: ", contractId)
    return contractId
}

// update contract 
const updateContract = (jsPath, abiPath, contractId, account) => {
    let cmd = iwallet + 'publish ' + jsPath + ' ' + abiPath + ' -u ' + contractId + ' --account ' + account
    console.log("👉", cmd)
    let result = shell.exec(cmd)
    let txId = result.split("The transaction hash is: ")[1].substring(0, 44)
    console.log("⛱ update contract done: ", txId)
    return txId
}

// call abi function
const icall = (contractId, actionName, params, account) => {
    let cmd = iwallet + 'call "' + contractId + '" "' + actionName + '" ' + '\'' + params + '\'' + ' --account ' + account
    console.log("👉", cmd)
    let result = shell.exec(cmd)
    let txId = result.split("The transaction hash is: ")[1].substring(0, 44)
    console.log("⛱ icall done: ", txId)
    return txId
}

// get receipt by tx id
const receipt = (txId) => {
    let cmd = 'iwallet receipt ' + txId
    console.log("👉", cmd)
    shell.exec(cmd)
}

// transfer token
const transfer = (sym, from, to, amount) => {
    const tx = iost.callABI("token.iost", "transfer", [sym, from, to, amount, ""]);
    iost.signAndSend(tx)
        .on('pending', (response) => {
            console.log("transfer pending ===> " + response)
        })
        .on('success', (response) => {
            console.log("transfer success ===> " + response)
        })
        .on('failed', (response) => {
            console.log("transfer failed ===> " + response)
        })
}

module.exports = {
    compile,
    updateABI,
    publish,
    updateContract,    
    icall,
    receipt,
    
    transfer
}