How to create html on the fly for Facebook Instant Article

I want to create html on the fly by replacing some links in a HTML template. I will get these links from DB and publish facebook instant articles in bulk.

`

FB.api('599265696800679/instant_articles', 'post', { html_source:html_source , development_mode:true }, function (res) {
    if(!res || res.error) {
      console.log(!res ? 'error occurred' : res.error);
      return;
    }
    console.log('Post Id: ' + res.id);
  });

`

Any ideas on how should I approach to create html_source automatically with new link ?