Rdbs

Rdbs is a robust redis pub/sub wrapper and redis request/reply es6 implementation

Quick Start

Install

npm i -S rdbs

Basic Usage

initiate the Rdbs instance

const Rdbs = require('rdbs')

Config

Use ioredis configuration

const redisConfig = {
  port: 6379, // default
  host: '127.0.0.1', // default
  password: 'auth',
  db: 0 // default
}

Redis client

const ioredis = Rdbs.createRedis(redisConfig)

Pub/Sub

Here is a simple example of the API for publish/subscribe. The following program opens two client connections. It subscribes to a channel with one connection and publishes to that channel with the other under the hood:

const Rdbs = require('rdbs')
const pubSub = Rdbs.createPubSub(redisConfig)

pubSub.on('foo', message => {
  console.log('first listener catch foo -> %s', message)
})

pubSub.on('foo', message => {
  console.log('second listener catch foo -> %s', message)
})

pubSub.emit('foo', 'bar')

// first listener catched foo -> bar
// second listener catched foo -> bar

Also you can send an object (command pattern)

const pubSub = rdbs.createPubSub(redisConfig);

pubSub.on('conect', () => {
  // handle connection
})

pubSub.on('error', error => {
  // handle error
})

pubSub.on('foo', data => {
  console.log('catch foo', data);
});

pubSub.emit('foo', {bar:'bar'});

// catched foo { bar: 'bar' }

Req/Rep

If you want to get response from another app, you have to use req/rep pattern

const reqRep = Rdbs.createReqRep(redisConfig);

reqRep.on('conect', () => {
  // handle connection
})

reqRep.on('error', error => {
  // handle error
})

reqRep.on('req', (data, cb) => {
  console.log('catch request', data);
  //simulate async data processing
  setTimeout(() => cb({ response: 'response' }), 2000);
});

reqRep.req('req', { request: 'request' })
  .then(response => {
    console.log('reply is', response);
  }).catch((err) => {
    // you own error handler
  });

// catch request { request: 'request' }
// reply is { response: 'response' }

Join in!

If you want to join this case by help maintaining something, please don't hesitate to contact.

I'm happy to receive bug reports, fixes, documentation enhancements, and any other improvements.

And since I'm not a native English speaker, if you find any grammar mistakes in the documentation, please also let me know. :)