ON demand, we can handle the ad server setup, once you provided us with API access to GAM.
"hb_env": "mobile-app",
"hb_cache_id": "e18e97c5-dbba-416c-8df6-2c082b113f25",
"hb_pb": "1.78",
"hb_cache_path": "/cache",
"hb_size": "320x480",
"hb_bidder": "triplelift",
"hb_partner": "nexx360",
"hb_cache_host": "fast.nexx360.io",
"hb_format": "banner"
As per Prebid documentation, you need to use the following creative (which includes mobileResize)
<script src="https://cdn.jsdelivr.net/npm/prebid-universal-creative@latest/dist/creative.js"></script>
<script>
var ucTagData = {};
ucTagData.adServerDomain = "";
ucTagData.pubUrl = "%%PATTERN:url%%";
ucTagData.adId = "%%PATTERN:hb_adid%%";
ucTagData.cacheHost = "%%PATTERN:hb_cache_host%%";
ucTagData.cachePath = "%%PATTERN:hb_cache_path%%";
ucTagData.uuid = "%%PATTERN:hb_cache_id%%";
ucTagData.mediaType = "%%PATTERN:hb_format%%";
ucTagData.env = "%%PATTERN:hb_env%%";
ucTagData.size = "%%PATTERN:hb_size%%";
ucTagData.hbPb = "%%PATTERN:hb_pb%%";
ucTagData.mobileResize = "hb_size:%%PATTERN:hb_size%%";
try {
ucTag.renderAd(document, ucTagData);
} catch (e) {
console.log(e);
}
</script>