DannyWhyte

Phases of Node JS Event Loop Explained with examples

In this gist i will explain about the working of Phases in Event Loop, please refer below js file and run each example by uncommenting the code snippet one by one.

setImmediate(() => {
  console.log('set immediate 2')
})
setTimeout(() => {
  console.log('timeout 3')
})

process.nextTick(() => {

DannyWhyte

const crypto = require('crypto');

const generateMasterKey = function (bytes) {
    return crypto.randomBytes(bytes).toString('base64')
}

const encryptAes256Gcm = (text, cryptoConfigObject) => {
    try {
        // random initialization vector
        const iv = crypto.randomBytes(16);

DannyWhyte

This snippet is about cross-platform AES-GCM-256 encryption & decryption, Where payload is being encrypted using JAVA and decrypted using NODE

sample config :

{
    "masterKey": "sfcpnnjFG6dULJfo1BEGqczpfN0SmwZ6bgKO5FcDRfI=",
    "iterations": 2333,
    "keyLength": 32,

"digest": "sha512"