Nodejs Tutorial - Convert Async functions into Sync functions

deasyncify.js

const deasync = require('deasync')
const axios = require('axios')
const cp = require('child_process');

function promiseToSync(func) {
  let isDone = false;
  let resp
  func().then(data => {
    isDone = true;
    resp = data
  })
  deasync.loopWhile(() => !isDone)
  return resp;
}

function callbackToSync(func) {
  return deasync(func)
}

const log = console.log;

console.log = function () {
  log.apply(console, [new Date(), ...arguments]);
};

const getData = async () => {
  const { data } = await axios.get('https://jsonplaceholder.typicode.com/todos/1')
  return data
}

function myPromise(duration = 1) {
  // Use the new keyword when calling the Promise constructor
  return new Promise((resolve, reject) => {
    setTimeout(() => resolve("Promise resolved"), duration * 1000);
  });
}

const data = promiseToSync(myPromise)
console.log('🚀 ~ file: index.js:34 ~ data:', data);
const data2 = promiseToSync(getData)
console.log('🚀 ~ file: index.js:36 ~ data2:', data2);
const data3 = promiseToSync(() => myPromise(3))
console.log('🚀 ~ file: index.js:38 ~ data3:', data3);
const exec = callbackToSync(cp.exec)
const resp1 = exec('node -v')
console.info(resp1);
const resp2 = exec('ls -la')
console.info(resp2);
const resp3 = exec('curl https://httpstat.us/200')
console.info(resp3);