redis-jwt

redis-jwt

Management of sessions by Redis and JWT for horizontal scalability, with the possibility of having one session at a time or multiple for the same user

Requirements

• Nodejs >= 6.x.x (Recommended 8.x.x)
• Redis >= 3.x.x (Recommended 4.x.x)

Installation

Npm

npm install redis-jwt --save

Yarn

yarn add redis-jwt

Usage

import RedisJwt from 'redis-jwt';

const r = new RedisJwt({
    //host: '/tmp/redis.sock', //unix domain
    host: '127.0.0.1', //can be IP or hostname
    port: 6379, // port
    maxretries: 10, //reconnect retries, default 10
    //auth: '123', //optional password, if needed
    db: 0, //optional db selection
    secret: 'secret_key', // secret key for Tokens!
    multiple: false, // single or multiple sessions by user
    kea: false // Enable notify-keyspace-events KEA
});

r.sign('507f191e810c19729de860ea').then(token => {
    r.verify(token).then(decode => {
    // [Object]
    }).catch(err => {
    // Wrong token
    });
});

Example Redis-jwt with Express

import RedisJwt from 'redis-jwt';
import express from 'express';
const r = new RedisJwt();
const app = express();

// Login
app.get('/login', (req, res) => {
    r.sign('507f191e810c19729de860ea', {
          ttl: '15 minutes',
          dataToken: { // Public
              hello: 'world'
          },
          dataSession: { // Private
              hello: 'world',
              headers : req.headers
          }
        }
    }).then(token => {
        res.json({token});
    });
});

// Me
app.get('/me', mw(), (req, res) => {
    res.json(req.user);
});

// Middleware
function mw() {
  return (req, res, next) => {
     const token = req.headers['authorization'];
     r.verify(token).then(decode =>
         // here you can get user from DB by id (decode.id)
         req.user = decode;
         next();
     }).catch(err => {
        res.status(401).json({err})
     })
  }
}

app.listen(3000, () => console.log('Server listening on port 3000!'));

Options

Sign

// Basic
r.sign('507f191e810c19729de860ea').then..

// TTL : 50 seconds, 10 minutes, 5 hours, 3 days, 1 year ...
r.sign('507f191e810c19729de860ea', {
      ttl: '15 minutes'
}).then...

// Save data in token : Object are saved in token
r.sign('507f191e810c19729de860ea', {
      dataToken: {world: 'hello'}
}).then...

// Save data in redis : Object are saved in redis-jwt
r.sign('507f191e810c19729de860ea', {
      dataSession: {hello: 'world'}
}).then...

// Example TTL + dataToken + dataSession
r.sign('507f191e810c19729de860ea', {
      ttl: '15 minutes',
      dataToken: {world: 'hello'},
      dataSession: {hello: 'world'}
}).then...

Verify

// Basic
r.verify(token).then(decode => {
/*
{
 "rjwt": "507f191e810c19729de860ea:ZYYlwOGqTmx",
 "dataToken": [Object]
 "iat": 1504334208,
 "id": "507f191e810c19729de860ea",
 "ttl": 60
}
*/
}).catch(err => {
    // Wrong token
})

// Get data from redis
r.verify(token, true).then(decode => {
/*
{
 "rjwt": "507f191e810c19729de860ea:ZYYlwOGqTmx",
 "dataToken": [Object]
 "dataSession": [Object]  ----> get data session
 "iat": 1504334208,
 "id": "507f191e810c19729de860ea",
 "ttl": 60
}
*/
}).catch(err => {
    // Wrong token
})

Exec

// Execute Redis comands
const exec = r.exec();

exec.rawCall(['keys', `507f191e810c19729de860ea:*`], (err, result) => {
/*
 [
  "507f191e810c19729de860ea:ZYYlwOGqTmx",
  "507f191e810c19729de860ea:d39K8J249Hd",
 ]
*/
});

Call

// Method's redis-jwt
const call = r.call();

// Test Ping
call.ping().then..

// Create
call.create(key, value, ttl).then..

// exits by key
call.exists(key).then..

// Get ttl by Key
call.ttl(key).then..

// Get values by key
call.getValueByKey(key).then..

// Get values by Pattern
call.getValuesByPattern(pattern).then..

// Get count by Pattern
call.getCountByPattern(pattern).then..

// Get info
call.getInfo(section).then..

// Destroy by key
call.destroy(key).then..

// Destroy multiple by key
call.destroyMultiple(key).then..

Events

// Ready
r.on('ready', () => {
    console.log('redis-jwt-> ready!');
});

// connected
r.on('connected', () => {
    console.log('redis-jwt-> connected!');
});

// disconnected
r.on('disconnected', () => {
    console.log('redis-jwt-> disconnected!');
});

// error
r.on('error', (err) => {
    console.log('redis-jwt-> error!', err);
});

Development

Start

npm start

Compile

npm run compile

Test

npm test

License

MIT © Leonardo Rico