google analytics analytics next.js
do the following in _document.js or wherever you defined Head:
<Head>
<script
async
src="https://www.googletagmanager.com/gtag/js?id=[Tracking ID]"
/>
<script
dangerouslySetInnerHTML={{
__html: `
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', '[Tracking ID]');
`,
}}
/>
</Head>google analytics nextjs
npm i -D @types/gtag.jsgoogle analytics nextjs
export const GA_TRACKING_ID = "<INSERT_TAG_ID>";
// https://developers.google.com/analytics/devguides/collection/gtagjs/pages
export const pageview = (url: URL): void => {
window.gtag("config", GA_TRACKING_ID, {
page_path: url,
});
};
type GTagEvent = {
action: string;
category: string;
label: string;
value: number;
};
// https://developers.google.com/analytics/devguides/collection/gtagjs/events
export const event = ({ action, category, label, value }: GTagEvent): void => {
window.gtag("event", action, {
event_category: category,
event_label: label,
value,
});
};google analytics nextjs
import { AppProps } from "next/app";
import { useRouter } from "next/router";
import { useEffect } from "react";
import * as gtag from "../lib/gtag";
const isProduction = process.env.NODE_ENV === "production";
const App = ({ Component, pageProps }: AppProps): JSX.Element => {
const router = useRouter();
useEffect(() => {
const handleRouteChange = (url: URL) => {
/* invoke analytics function only for production */
if (isProduction) gtag.pageview(url);
};
router.events.on("routeChangeComplete", handleRouteChange);
return () => {
router.events.off("routeChangeComplete", handleRouteChange);
};
}, [router.events]);
// eslint-disable-next-line react/jsx-props-no-spreading
return <Component {...pageProps} />;
};
export default App;Copyright © 2021 Codeinu
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