wolkd/lib/server.js

Server and user interface to control WS2801 RGB LED strips via SPI

var express = require('express');
var app = express();
var WebSocketServer = require('ws').Server;

module.exports.start = function(config, patterns, modifiers, callback) {
  var wss = new WebSocketServer({
    port: config.websocket.port
  });

  app.use(express.static('public'));

  wss.on('connection', function connection(ws) {
    ws.on('message', function incoming(data) {
      var event = JSON.parse(data);
      callback(event);
    });
  });

  app.get('/config', function(req, res) {
    res.send({
      hostname: config.hostname,
      websocket: config.websocket
    });
  });

  app.get('/patterns', function(req, res) {
    var result = Object.keys(patterns)
      .map(function(name) {
        return {
          name: name,
          title: patterns[name].title,
          value: patterns[name].value
        };
      })
      .sort(function(a, b) {
        return a.title > b.title;
      });

    res.send(result);
  });

  app.get('/modifiers', function(req, res) {
    var result = Object.keys(modifiers)
      .filter(function(name) {
        return modifiers[name].published === undefined || modifiers[name].published === true;
      })
      .map(function(name) {
        return {
          name: name,
          title: modifiers[name].title,
          value: modifiers[name].value
        };
      })
      .sort(function(a, b) {
        return a.title > b.title;
      });

    res.send(result);
  });

  app.listen(config.http.port, function() {
    console.log('wolkd started!');
  });
};