How to add google analytics in chrome extension with manifest 3

In Manifest v2 I was using GA - was working great. But with V3

var _gaq = _gaq || [];

_gaq.push(['_setAccount', 'UA-30398300-16']); _gaq.push(['_setCampSourceKey', 'chrome-extension']); // source

(function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = 'https://ssl.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })();

not working inside background script