node-amqp-bus

node-amqb-bus

Implements a simple bus client to exchange JSON message on queues using AMQP server.

Install

npm install node-amqp-bus --save

Use

const bus = require('node-amqp-bus');

Examples

Create a client:

const client = yield bus.createBusClient(URL);

Publish an event to the bus:

client.publish('the-key', message);

Use the client to listen to the bus:

yield client.listen('the-queue', 'the-key', (message, callback) => {

  // ... process message ...

  callback();
});

If you need to pass additionnal options to AMQP:

yield client.listen('the-queue', 'the-key', options, (message, callback) => {

  // ... process message ...

  callback();
});

If you want to message to be reinjected in the queue because you failed:

yield client.listen('the-queue', 'the-key', options, (message, callback) => {

  // ... process message ...

  callback(new Error('Epic fail'));
});

Developement system dependencies

To run the tests, you need a local RabbitMQ. The simplest way to do this with the exact versions used in production is to use the Dockerfile available here: https://github.com/transcovo/environments-tech/tree/master/docker