Using Node.js modules for JWT

As we mentioned previously, jsonwebtoken can be used to generate JWTs on the server side. You can use this module synchronously or asynchronously in the following simplified steps:

1. Install jsonwebtoken via npm:

$ npm i jsonwebtoken

2. Import and sign a token on the server side:

import jwt from 'jsonwebtoken'
var token = jwt.sign({ name: 'john' }, 'secret', { expiresIn: '1h' })

3. Asynchronously verify the token coming from the client side:

try {
  var verified = jwt.verify(token, 'secret')
} catch(err) {
  // handle error
}

If you want to find out more information about this module, please visit https://github.com/brianloveswords/node-jws.

So, now you have a basic understanding of session-based and token-based authentication, we will guide you on how to apply them in server-side and client-side apps that use Koa and Nuxt. In this chapter, we will use token-based authentication to create two authentication options...