Intervals on a server - angularjs

Question

I have recently bought a lifx lamp (a light you can control with http request to change the color) and I would like to make a website as a remote to make a cycle color.
For example, I am on the website, I click on the button cycle 1, each seconds, with a $interval() (setInterval()), Angular send a HTTP request to the lamp and that work.
However, I'd like to know how can a make this job (send a request each seconds) on the server with a back-end language.
I wonder if angular send a request to a PHP page with the intervals will work.
Otherwise, (I'm a newbie in AngularJS) is there a way to to this job with angular but in server side.
If I really want to do that in server side, it's because I would like that the cycle continues even if I shut down the computer (client side)
Ask if you need more information
Thank you and sorry for my aweful English

Answer 1

If you just want to write a server-side script for this, you don't need Angular. Consider using NodeJS and the request module.
Something like this should work:
var request = require('request');
var interval = 1000; // 1 second, in milliseconds
function changeColor() {
/* some code to pick a random color */
request('http://url-for-lifx-api.com', function (error, response, body) {
if (!error && response.statusCode === 200) {
setTimeout(changeColor, interval);
} else {
/* handle error */
}
});
}
changeColor();
NOTE: You will need to modify the request to use the proper HTTP method (GET, PUT, POST) and, if necessary, pass headers or a body with the request.