Bandwidth measuring with Boomerang -> wait for the result

Question

I have a javascript (jQuery) method (function) which gets me the bandwidth vie Boomerang.

The function looks this:

this.getBandwidth = function() {
    var cookie = BOOMR.utils.getCookie('BA');
    if (cookie !== null) {
        return true;
    } else {
        return false;
    }
};

Now it takes a while to get the Cookie and cookie being no longer null. So if cookie is actually still null, I need to start over. If I just call getBandwidth() in the else part again I get a stack overflow. Already tried to use while loop for checking 'cookie' but it blocks the browser.

How can I simply repeat the assignment until cookie is ready? Pulling my hair out!

Thanks.

Answer 1

You should subscribe to the before_beacon event of the BOOMR object. See docs here: http://lognormal.github.io/boomerang/doc/api/BOOMR.html

BOOMR.subscribe("before_beacon", getBandwidth, null, this);

Put that somewhere after you define your getBandwidth function, and it will be called once boomerang has finished doing everything it needs to do.