Google DFP广告管理系统-刷新广告位，不增加新的展示次数

Question

I need to refresh all ad slots after 15 sec and load new ads to the slots without counting new impression. ** This works :

googletag.pubads().refresh([slot1], {changeCorrelator: false});

**but when I add the set interval 30 sec.. it is not refreshing-

setInterval(function(){googletag.pubads().refresh(null, {changeCorrelator: false}, 30000)});

Pls help..Tnx

Answer 1

The syntax is:

setInterval(function, milliseconds) 

The code bellow should work:

setInterval(function(){
    googletag.pubads().refresh(null, {changeCorrelator: false});
}, 30000);

Answer 2

The problem you have is due to the fact that the refresh() call should be pushed to googletag commands. So this should solve your issue:

setInterval(function(){
    googletag.cmd.push(function() {
         // refresh fetches a new ad for each slot, without changing the correlator.
        googletag.pubads().refresh(null, {changeCorrelator: false});
    });
}, 30000);

Please note this line in th example above: googletag.cmd.push(function() {...});