@living-room/service-js

service-js

Creates a living room that you can connect to over HTTP, socket.io, and osc!

You can test it out by running npm start after installing the dependencies with npm install

For motivations, context, and philosophy, check out https://github.com/living-room/living-room

For a nice javascript client, check out https://github.com/living-room/client-js

installing

There is a git post-receive hook which we setup like so:

# on remote machine
git clone --bare https://github.com/living-room/service-js.git service-js.git
mkdir service-js
# on local machine
git remote add my-remote-machine ssh://my-remote-machine/home/livingroom/service-js.git

After deploying the default branch, the post-receive hook checks it out and restarts the system service. neat.

example http

$ curl -d 'facts=curl is an app at (20, 30)' localhost:3000/assert
OK

$ curl -d 'facts=$who is an app at ($x, $y)' localhost:3000/select
{"assertions":[{"who":{"word":"curl"},"x":{"value":20},"y":{"value":30}}]}%

example socket.io

npm run serve:examples && open http://localhost:5000

from examples/browser.html

const socket = io.connect(`http://localhost:3000`)

// The pattern we want to match on
const pattern = 'ping $number'

let pong = 0

// To subscribe pass in the JSON of an array of patterns
const patternsString = JSON.stringify([pattern])

// We will get back an object, we just care about new assertions
socket.on(patternsString, ({assertions}) => {
  assertions.forEach(({number}) => {
    const value = parseInt(number.value)
    if (value > pong) pong = value
    console.log(`<- pong ${pong}`)
    pong++
  })
})
socket.emit('subscribe', patternsString)

// Start pinging from highest previous ping
setInterval(() => {
  socket.emit('assert', `ping ${pong}`, data => {
    console.log(`-> ${data[0]}`)
  })
}, 1500)

example opensoundcontrol

from examples/osc/osc.pde

/**
 * based off of oscP5message by andreas schlegel
 * oscP5 website at http://www.sojamo.de/oscP5
 */

import oscP5.*;
import netP5.*;

OscP5 oscP5;
NetAddress myRemoteLocation;

void setup() {
  size(400,400);
  frameRate(25);
  oscP5 = new OscP5(this, 12000);

  myRemoteLocation = new NetAddress("127.0.0.1",41234);
}


void draw() {
  background(0);
}

void mousePressed() {
  OscMessage assertMessage = new OscMessage("/assert");
  assertMessage.add("processing is a program at (0.2, 0.3)");
  oscP5.send(assertMessage, myRemoteLocation);

  OscMessage assert2Message = new OscMessage("/assert");
  assert2Message.add("coolprocessing is a notherprogram at (0.4, 0.4)");
  oscP5.send(assert2Message, myRemoteLocation);

  OscMessage selectMessage = new OscMessage("/select");
  selectMessage.add("$name is a $type at ($x, $y)");
  oscP5.send(selectMessage, myRemoteLocation);
}