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amqp.node's Introduction

AMQP 0-9-1 library and client for Node.JS

Build Status

npm install amqplib

A library for making AMQP 0-9-1 clients for Node.JS, and an AMQP 0-9-1 client for Node.JS v0.8, v0.9, v0.10, v0.11, v0.12, and io.js v1.x.

This library does not implement AMQP 1.0 or AMQP 0-10.

Project status:

  • Expected to work
  • Complete high-level and low-level APIs (i.e., all bits of the protocol)
  • A fair few tests
  • Measured test coverage
  • Ports of the RabbitMQ tutorials as examples
  • Used in production

Still working on:

  • Getting to 100% (or very close to 100%) test coverage
  • Settling on completely stable APIs

Callback API example

var q = 'tasks';

function bail(err) {
  console.error(err);
  process.exit(1);
}

// Publisher
function publisher(conn) {
  conn.createChannel(on_open);
  function on_open(err, ch) {
    if (err != null) bail(err);
    ch.assertQueue(q);
    ch.sendToQueue(q, new Buffer('something to do'));
  }
}

// Consumer
function consumer(conn) {
  var ok = conn.createChannel(on_open);
  function on_open(err, ch) {
    if (err != null) bail(err);
    ch.assertQueue(q);
    ch.consume(q, function(msg) {
      if (msg !== null) {
        console.log(msg.content.toString());
        ch.ack(msg);
      }
    });
  }
}

require('amqplib/callback_api')
  .connect('amqp://localhost', function(err, conn) {
    if (err != null) bail(err);
    consumer(conn);
    publisher(conn);        
  });

Promise API example

var q = 'tasks';

var open = require('amqplib').connect('amqp://localhost');

// Publisher
open.then(function(conn) {
  var ok = conn.createChannel();
  ok = ok.then(function(ch) {
    ch.assertQueue(q);
    ch.sendToQueue(q, new Buffer('something to do'));
  });
  return ok;
}).then(null, console.warn);

// Consumer
open.then(function(conn) {
  var ok = conn.createChannel();
  ok = ok.then(function(ch) {
    ch.assertQueue(q);
    ch.consume(q, function(msg) {
      if (msg !== null) {
        console.log(msg.content.toString());
        ch.ack(msg);
      }
    });
  });
  return ok;
}).then(null, console.warn);

Running tests

npm test

Best run with a locally-installed RabbitMQ, but you can point it at another using the environment variable URL; e.g.,

URL=amqp://dev.rabbitmq.com npm test

NB You may experience test failures due to timeouts if using the dev.rabbitmq.com instance.

You can run it under different versions of Node.JS using nave:

nave use 0.8 npm test

or run the tests on all supported versions of Node.JS in one go:

make test-all-nodejs

(which also needs nave installed, of course).

Lastly, setting the environment variable LOG_ERRORS will cause the tests to output error messages encountered, to the console; this is really only useful for checking the kind and formatting of the errors.

LOG_ERRORS=true npm test

Test coverage

make coverage
open file://`pwd`/coverage/lcov-report/index.html

amqp.node's People

Contributors

squaremo avatar rexxars avatar jcrugzz avatar carlhoerberg avatar djhojd avatar esk525 avatar skeggse avatar ikr avatar jcready avatar olegabr avatar oronnadiv avatar hippich avatar

Watchers

James Cloos avatar Prabhjot Singh Lamba avatar

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