node.jwt

A lightweight library for encode and decode JSON Web Tokens (JWT).

Install

$ npm install node.jwt --save-dev

$ yarn add node.jwt

Usage

Symmetric encryption

const jwt = require('node.jwt')
const payload = {
  "sub": "aidandai@126.com",
  "iss": "https://aidandai.github.io",
  "exp": Date.now() / 1000 + (60 * 60 * 24 * 2),
  "nbf": Date.now() / 1000 - (60 * 5),
  "iat": Date.now() / 1000,
  "data": {
    "uid": "1sf72323rjsdfsdkl223434k",
    "name": "Aidan",
    "authority": "1001111010101110",
  }
}

// get secret, you can reload this method to create your secret
const secret = jwt.secret('I am Aidan')

// encode
var token = jwt.encode(payload, secret);

// decode
var result = jwt.decode(token, secret)
console.log(result)

// {
//   code: '000', // error code of verify, you can learn more from lib/jwt.js
//   message: 'successful', // error message of verify, , you can learn more from lib/jwt.js
//   payload: {
//     "sub": "aidandai@126.com",
//     "iss": "https://aidandai.github.io",
//     "exp": Date.now() / 1000 + (60 * 60 * 24 * 2),
//     "nbf": Date.now() / 1000 - (60 * 5),
//     "iat": Date.now() / 1000,
//     "data": {
//       "uid": "1sf72323rjsdfsdkl223434k",
//       "name": "Aidan",
//       "authority": "1001111010101110",
//     }
//   }
// }

Asymmetric encryption

const jwt = require('node.jwt')
const payload = {
  "sub": "aidandai@126.com",
  "iss": "https://aidandai.github.io",
  "exp": Date.now() / 1000 + (60 * 60 * 24 * 2),
  "nbf": Date.now() / 1000 - (60 * 5),
  "iat": Date.now() / 1000,
  "data": {
    "uid": "1sf72323rjsdfsdkl223434k",
    "name": "Aidan",
    "authority": "1001111010101110"
  }
}

const privateSecret = getYourPrivateSceret()
const publicSceret　＝　getYourPublicSecret()

// encode
var token = jwt.encode(payload, privateSecret, 'RS256')

// decode
var result = jwt.decode(token, publicSceret)
console.log(result)

// {
//   code: '000', // error code of verify, you can learn more from lib/jwt.js
//   message: 'successful', // error message of verify, , you can learn more from lib/jwt.js
//   payload: {
//     "sub": "aidandai@126.com",
//     "iss": "https://aidandai.github.io",
//     "exp": Date.now() / 1000 + (60 * 60 * 24 * 2),
//     "nbf": Date.now() / 1000 - (60 * 5),
//     "iat": Date.now() / 1000,
//     "data": {
//       "uid": "1sf72323rjsdfsdkl223434k",
//       "name": "Aidan",
//       "authority": "1001111010101110"
//     }
//   }
// }

Interface

/**
 * jwt encode
 * @param  {Object} payload   jwt payload
 * @param  {String} secret    sign secret
 * @param  {String} algorithm sign algorithm
 * @param  {Object} header    jwt header
 * @return {String}           jwt
 */
encode (payload, secret, algorithm = 'HS256', header = { type: 'JWT' })

/**
 * jwt decode
 * @param  {String}  token    verify token
 * @param  {String}  secret   verify secret
 * @param  {Boolean} noVerify is it verify
 * @return {Object}           decode result
 */
decode (token, secret, noVerify = false)

Algorithms

By default the algorithm to encode is HS256.

The supported algorithms for encoding and decoding are HS256, HS384, HS512 and RS256.

// encode using HS512
jwt.encode(payload, secret, 'HS512')

About JWT

• Introduction to JSON Web Tokens

• JWT(JSON Web Token)

Contributors

• stephenbeauchamp: https://github.com/stephenbeauchamp