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_app.js
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_app.js
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import { useEffect } from 'react';
import Script from 'next/script';
import Head from 'next/head';
import { useRouter } from 'next/router';
import * as gtag from '../lib/gtag';
const App = ({ Component, pageProps }) => {
const router = useRouter()
useEffect(() => {
const handleRouteChange = (url) => {
gtag.pageview(url)
}
router.events.on('routeChangeComplete', handleRouteChange)
return () => {
router.events.off('routeChangeComplete', handleRouteChange)
}
}, [router.events])
return (
<>
<Head>
{/* Global Site Tag (gtag.js) - Google Analytics */}
<script
dangerouslySetInnerHTML={{
__html: `
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
// Disable any default-enabled advertising features (turn them on later when we get consent)
gtag('set', 'allow_google_signals', false);
gtag('config', '${gtag.GA_TRACKING_ID}', {
page_path: window.location.pathname,
});
`,
}}
/>
</Head>
<Script
strategy="afterInteractive"
src={`https://www.googletagmanager.com/gtag/js?id=${gtag.GA_TRACKING_ID}`}
/>
<Component {...pageProps} />;
</>
)
}
export default App