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Cylon.js API plugin for HTTP

Cylon.js ( is a JavaScript framework for robotics, physical computing, and the Internet of Things (IoT).

API plugins are separate from the Cylon.js main module, to allow for greater modularization of Cylon robots.

This repository contains the Cylon API plugin for HTTP.

For more information about Cylon, check out the repo at

Build Status Code Climate Test Coverage

How To Install

$ npm install cylon cylon-api-http

How To Use

With both of these modules installed, you can make your robots accessible over HTTP:

"use strict";

var Cylon = require("cylon");

Cylon.api("http", {
  ssl: false // serve unsecured, over HTTP

  // optional configuration here.
  // for details see 'Configuration' section.

  name: "Maria",

  connections: {
    arduino: { adaptor: 'firmata', port: '/dev/ttyACM0' }

  devices: {
    led: { driver: 'led', pin: 13 }

  work: function() {
    // we'll interact with this robot through the API

How To Connect

Once you've got a Cylon instance with the API configured and running, you can use cURL to test it out:

  $ curl
  { "robot": { "name": "Maria" /* ... */ } }


This plugin follows the CPPP-IO specification.

To get started, you can visit the /api route in your browser to get an overview of the Cylon Master Control Program (MCP). This provides a high level overview of your program:

  $ curl | python -m json.tool
      "MCP": {
          "commands": [ ],
          "events": [ ],
          "robots": [
                  "name": "Maria",
                  "connections": [
                          "name": "arduino",
                          "adaptor": "firmata",
                          "details": { "port": "/dev/ttyACM0" }
                  "devices": [
                          "name": "led",
                          "commands": [ "toggle" ],
                          "connection": "arduino",
                          "details": { "pin": "13" },
                          "driver": "LED"
                  "commands": [ ],
                  "events": [ ]

For details on other available routes in the API and expected responses, please see the [specification document][spec].


This plugin includes a default front-end in Robeaux.

Robeaux is a simple tool to use against the HTTP API, and explore your robots visually, while also able to issue commands to robots and listen for events.


Option Description
host What HTTP host to serve from. Defaults to
port What HTTP port to serve on. Defaults to 3000.
auth What authorization scheme to use. e.g. { type: "basic", user: "username", pass: "password"}. Defaults to false.
CORS Cross-Origin Resource Sharing option (HTTP Header: "Access-Control-Allow-Origin"). Defaults to "*".
serveDir Directory to serve as static assets. Defaults to the included Robeaux installation.
ssl SSL key and cert options, wrapped as an object. Set to false for an unsecured API. Defaults to included self-signed certs.


We're busy adding documentation to Please check there as we continue to work on Cylon.js.

Thank you!


For our contribution guidelines, please go to

Release History

For the release history, please go to


Copyright (c) 2014-2016 The Hybrid Group. Licensed under the Apache 2.0 license.


Cylon.js API plugin for http/https




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