Question

Overview

I am working on building a Kynetx ruleset that will find a bunch of Facebook ids that are on the page and then use the Kynetx Facebook module to get the Facebook avatar associated with that Facebook id. I have the JS that creates an array of Facebook ids on the page and I can process an array in KRL to retrieve Facebook avatars. What I don’t have is how to get an array from the client side to the server side in KRL.

How can I get the array from the client side to the server side of KRL?

Answer 1

You can take a JavaScript array and convert it into a string and it will work if you decode it on the server side of KRL.

Example app code => https://gist.github.com/722536

Example app bookmarklet => http://mikegrace.s3.amazonaws.com/forums/stack-overflow/send-array-to-kns-dev-bookmarklet.html

ruleset a60x442 {
  meta {
    name "array-passing-test"
    description <<
      array-passing-test
    >>
    author "Mike Grace"
    logging on
  }

  rule start_your_engines {
    select when pageview ".*"
    {
      notify("Running","...sending array to KNS") with sticky = true;
      emit <|
        app = KOBJ.get_application("a60x442");
        var numbers = [1,2,3,4,5];
        nums = JSON.stringify(numbers);
        app.raise_event("process_array", {"numbers":nums});
        $K("div.KOBJ_message").append("<br/>"+nums);
      |>;
    }
  }

  rule process_array {
    select when web process_array
    foreach event:param("numbers").decode() setting (number)
    {
      notify("number",number) with sticky = true;
    }
  }
}

Results of running app from bookmarklet on http://example.com/