Server-Side Development with Hapi.js — Tokens, JWT, and Secrets

Server-Side Development with Hapi.js — Tokens, JWT, and Secrets

Server-Side Development with Hapi.js — Tokens, JWT, and Secrets. Hapi.js is a small Node framework for developer back end web apps. We can create Tokens (JWT) with the @hapi/iron module. We can secret create various kinds of tokens and verify them with Hapi.js addons.

Hapi.js is a small Node framework for developing back end web apps.

In this article, we’ll look at how to create back end apps with Hapi.js.

Create Tokens

We can create tokens with the @hapi/iron module.

For example, we can write:

const Hapi = require('@hapi/hapi');
const iron = require('@hapi/iron')

const obj = {
  a: 1,
  b: 2,
  c: [3, 4, 5],
  d: {
      e: 'f'
const password = 'passwordpasswordpasswordpassword';
const init = async () => {  
  const server = new Hapi.Server({
    port: 3000,
    host: ''
    method: 'GET',
    path: '/',
    async handler(request, h) {    
      try {
        const sealed = await iron.seal(obj, password, iron.defaults);
        return sealed
      } catch (err) {
  await server.start();
  console.log('Server running at:',;

process.on('unhandledRejection', (err) => {

We call the iron.seal method with the object we want to encrypt, the password to access the encrypted object, and the settings, which is iron.defaults .

Them the sealed string is a scrambled version of the object in string form.

Then to unseal it, we call the iron.unseal method.

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