rsmq-promise

1.0.4 • Public • Published

rsmq-promise - Promise interface for RSMQ

npm version

A lightweight message queue for Node.js that requires no dedicated queue server. Just a Redis server.

RSMQ: Redis Simple Message Queue for Node.js

Usage

  • After creating a queue you can send messages to that queue.
  • The messages will be handled in a FIFO (first in first out) manner unless specified with a delay.
  • Every message has a unique id that you can use to delete the message.
  • The sendMessage method will return the id for a sent message.
  • The receiveMessage method will return an id along with the message and some stats.
  • Should you not delete the message it will be eligible to be received again after the visibility timeout is reached.
  • Please have a look at the createQueue and receiveMessage methods described below for optional parameters like visibility timeout and delay.

Install

npm install --save rsmq-promise

Quickstart

const RSMQPromise = require('rsmq-promise');
 
const rsmq = new RSMQPromise({
    host: "127.0.0.1", 
    port: 6379
});

Parameters for RedisSMQ via an options object:

  • host (String): optional (Default: "127.0.0.1") The Redis server
  • port (Number): optional (Default: 6379) The Redis port
  • options (Object): optional (Default: {}) The Redis options object.
  • client (RedisClient): optional A existing redis client instance. host and server will be ignored.
  • ns (String): optional (Default: "rsmq") The namespace prefix used for all keys created by RSMQ
  • realtime (Boolean): optional (Default: false) Enable realtime PUBLISH of new messages (see the Realtime section)

Create a Queue

rsmq.createQueue({qname: 'myqueue'})
    .then(done => console.log('Queue created!'))
    .catch(err => console.log(err));

Send Messages

rsmq.sendMessage({ qname: 'myqueue', message: 'my message!' })
    .then(result => console.log("Message sent. ID:", result))
    .catch(err => console.log(err));

Receive a message

rsmq.receiveMessage({qname: 'myqueue'})
    .then(message => console.log(message))
    .catch(err => console.log(err))

Delete a message

rsmq.deleteMessage({ qname: 'myqueue', id: 'dhoiwpiirm15ce77305a5c3a3b0f230c6e20f09b55'})
    .then(result => console.log("Message deleted."))
    .catch(err => console.log("Message not found."));

List Queues

rsmq.listQueues()
    .then(queues => console.log(queues))
    .catch(err => console.log(err));

Quit Connection

rsmq.quit()
    .then(success => console.log(success))
    .catch(err => console.log(err));

Thanks for: Patrick Liess

More info: https://github.com/smrchy/rsmq

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npm i rsmq-promise

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  • msfidelis