Displaying live polling results from a website via Isadora

DusX

I spent an hour going thru some notes and doing a few test today.. looks like I will have the basics of a 'Retrieving data from webservices' in the very near future.. I might spend the evening putting this together.. its really as much for my own reference as it is for all of you... the TCP actors are powerful/tricky
A part 2 will have to deal with Oauth connections (Facebook and Twitter) as this requires server side scripting (at least this is the only way I have done it)

eight

node.js + osc server? https://github.com/TheAlphaNerd/node-osc

DusX

I took a first pass at this last night. see: http://dusxproductions.com/blog/web-apis-in-isadora-part-1/

The next ones will go faster and be more useful, but this puts the ground work in place I think.
If anyone catches any mistakes please let me know... I wasn't all awake while writing this.

@eight I will have to take a look at the node osc server... how have you tried to use it? I guess you could code via node to connect to any webservice, and then spit data out as OSC to Isadora.

djinoui

Brilliant! Thankx DusX, very understandable tutorial!

By the way, it made me realize how 'easy' the parser can be... Next time I won't write a plugin to just explode a string :-)

I'm eager to read the next parts as I still don't see precisely yet what kind of data it could be interesting to retreive...

eight

@DusX

I just played with this module. It took me about 10 min to setup a _Hello OSC_ app talking to Isadora starting from scratch. Here is the writeup for OSX.

1\. Install node.js by either building from source or downloading a current *.pkg file from _http://nodejs.org/dist/latest/_

2\. Install dependencies: in terminal execute consecutively

_npm install osc-min_

_npm install jspack_

_npm install node-osc_

3. Create a hello-osc.js file with the following content:

_var http = require("http");_

_var osc = require('node-osc');_

_var client = new osc.Client('127.0.0.1', 3333);_

_http.createServer(function(request, response) {_

_ ** client.send('/isadora/1', "Hello OSC");**_

_ response.writeHead(200, {"Content-Type": "text/plain"});_

_ response.write("Hello OSC");_

_ response.end();_

_}).listen(8888);_

4\. In terminal, run the _hello-osc.js_ in _node.js_ server like so:

_node hello-osc.js_

5. In Isadora patch add a OSC Listener actor, set the message type to text.

6\. Point your browser to http://localhost:8888

7\. Observe the _Hello OSC_ message both in browser and Isadora's _OSC Listener actor_.

--8

DusX

A organized listing of many available web API's: http://api-portal.anypoint.mulesoft.com/apis

djinoui

OK, now I think I'm starting to see the point. I also suppose an interesting thing to work on is building your own API on your own site, thus being able to display user posts with Izzy. Exciting!

dbini

i'm working on a project at the moment - by this time next month we should have a system that enables an audience to collaborate in the creation of a dance work, and then control the lighting, sound and video - all from a web app running in their phones' browsers. its some Javascript node library to OSC into Isadora.

Michel

@DusX
Thanks a lot for the tutorial.

Best
Michel

Skulpture

Thanks @DusX!!

rainbow

@DusX wait for part two, nice one.

Has anyone tried OSC PHP, and develop interactive Web browser control.html, unidirectional…. it works. :)

thx

DusX

I currently have been using a php Framework 'silverstripe', it allows the quick creation of a REST api, for any data types defined.
In this manner, Isadora has a mySQL backend. Moving to a node.js solution might be the way I go for future works though.

DusX

Another thing I want to test, but haven't yet, is using tcp as a method of launching other executables locally. I imaging the possibility to launch for instance OpenFrameWorks projects, via tcp (python script) and closing them when finished. Perhaps one scene uses Duration, and it needs to be opened. I am hoping to test this in the near future.

particlep

i'm interested in this, am going to attempt to have a play and see what i can do

@dbini how is your project progressing ?

dbini

Hi Andrew @particlep,

we tested the system in a performance a couple of weeks ago. we had the audience sending in stories that were moderated and then displayed in a custom web app using CSS, this was syphoned into Isadora via CEF. then later in the evening, we sent individual audience members a slider to control sound, light or video. this went through nodeJS and was converted to OSC, straight into Isadora for video, through LanBox actors for lighting and MIDI out to Ableton Live for sound manipulation.

the server crashed a couple of times, but he OSC stuff worked nicely. we're changing a lot of the structure of the event and testing again at the end of June.

hope you're well and keeping creative,

john