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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 { useRouter } from 'next/router'
import * as fbq from '../lib/fpixel'
function MyApp({ Component, pageProps }) {
const router = useRouter()
useEffect(() => {
// This pageview only triggers the first time (it's important for Pixel to have real information)
fbq.pageview()
const handleRouteChange = () => {
fbq.pageview()
}
router.events.on('routeChangeComplete', handleRouteChange)
return () => {
router.events.off('routeChangeComplete', handleRouteChange)
}
}, [router.events])
return (
<>
{/* Global Site Code Pixel - Facebook Pixel */}
<Script
id="fb-pixel"
strategy="afterInteractive"
dangerouslySetInnerHTML={{
__html: `
!function(f,b,e,v,n,t,s)
{if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};
if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';
n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];
s.parentNode.insertBefore(t,s)}(window, document,'script',
'https://connect.facebook.net/en_US/fbevents.js');
fbq('init', ${fbq.FB_PIXEL_ID});
`,
}}
/>
<Component {...pageProps} />
</>
)
}
export default MyApp