To get back an XML document containing the "VAST2" ad response, call the URL provided in the video feed's JSON data at meta->url_vast2 ( http://www.cfl.ca/?feed=feed-youi-videos&page[number]=1&page[size]=20 ), which will look like:
https://pubads.g.doubleclick.net/gampad/ads?sz=1280x720&iu=/103711331/CFL_Mobile_App_Video&cust_params=[key_values]&impl=s&gdfp_req=1&env=vp&output=xml_vast2&unviewed_position_start=1&correlator=[timestamp]
A few quick notes:
- The string "[ad_category_params]" (without quotes) needs to be URL encoded (see https://support.google.com/dfp_premium/answer/1080597 ). It should have the form of app_section=val, and where val is should be the name of the Video Category of the video being viewed. Some examples:
- app_section%3D103rd%20Grey%20Cup
- app_section%3D2015%20Game%20Recaps
- app_section%3D%23KegSize%20Plays%20of%20the%20Week
And so on (I pulled those Video Category names from the feed at http://www.cfl.ca/?feed=feed-youi-videocategories ).
- The string "[timestamp]" (without quotes) should be swapped out before being called with the current UNIX timestamp; this is to keep all calls unique/un-cached.