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| --- | |
| title: How to optimize third-party libraries | |
| nav_title: Third Party Libraries | |
| description: Optimize the performance of third-party libraries in your application with the `/third-parties` package. | |
| --- | |
| {/* The content of this doc is shared between the app and pages router. You can use the `<PagesOnly>Content</PagesOnly>` component to add content that is specific to the Pages Router. Any shared content should not be wrapped in a component. */} | |
| **`/third-parties`** is a library that provides a collection of components and utilities that improve the performance and developer experience of loading popular third-party libraries in your Next.js application. | |
| All third-party integrations provided by `/third-parties` have been optimized for performance and ease of use. | |
| ## Getting Started | |
| To get started, install the `/third-parties` library: | |
| ```bash filename="Terminal" | |
| npm install /third-parties next | |
| ``` | |
| {/* To do: Remove this paragraph once package becomes stable */} | |
| `/third-parties` is currently an **experimental** library under active development. We recommend installing it with the **latest** or **canary** flags while we work on adding more third-party integrations. | |
| ## Google Third-Parties | |
| All supported third-party libraries from Google can be imported from `/third-parties/google`. | |
| ### Google Tag Manager | |
| The `GoogleTagManager` component can be used to instantiate a [Google Tag Manager](https://developers.google.com/tag-platform/tag-manager) container to your page. By default, it fetches the original inline script after hydration occurs on the page. | |
| <AppOnly> | |
| To load Google Tag Manager for all routes, include the component directly in your root layout and pass in your GTM container ID: | |
| ```tsx filename="app/layout.tsx" switcher | |
| import { GoogleTagManager } from '@next/third-parties/google' | |
| export default function RootLayout({ | |
| children, | |
| }: { | |
| children: React.ReactNode | |
| }) { | |
| return ( | |
| <html lang="en"> | |
| <GoogleTagManager gtmId="GTM-XYZ" /> | |
| <body>{children}</body> | |
| </html> | |
| ) | |
| } | |
| ``` | |
| ```jsx filename="app/layout.js" switcher | |
| import { GoogleTagManager } from '@next/third-parties/google' | |
| export default function RootLayout({ children }) { | |
| return ( | |
| <html lang="en"> | |
| <GoogleTagManager gtmId="GTM-XYZ" /> | |
| <body>{children}</body> | |
| </html> | |
| ) | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| To load Google Tag Manager for all routes, include the component directly in your custom `_app` and | |
| pass in your GTM container ID: | |
| ```jsx filename="pages/_app.js" | |
| import { GoogleTagManager } from '@next/third-parties/google' | |
| export default function MyApp({ Component, pageProps }) { | |
| return ( | |
| <> | |
| <Component {...pageProps} /> | |
| <GoogleTagManager gtmId="GTM-XYZ" /> | |
| </> | |
| ) | |
| } | |
| ``` | |
| </PagesOnly> | |
| To load Google Tag Manager for a single route, include the component in your page file: | |
| <AppOnly> | |
| ```jsx filename="app/page.js" | |
| import { GoogleTagManager } from '@next/third-parties/google' | |
| export default function Page() { | |
| return <GoogleTagManager gtmId="GTM-XYZ" /> | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| ```jsx filename="pages/index.js" | |
| import { GoogleTagManager } from '@next/third-parties/google' | |
| export default function Page() { | |
| return <GoogleTagManager gtmId="GTM-XYZ" /> | |
| } | |
| ``` | |
| </PagesOnly> | |
| #### Sending Events | |
| The `sendGTMEvent` function can be used to track user interactions on your page by sending events | |
| using the `dataLayer` object. For this function to work, the `<GoogleTagManager />` component must be | |
| included in either a parent layout, page, or component, or directly in the same file. | |
| <AppOnly> | |
| ```jsx filename="app/page.js" | |
| 'use client' | |
| import { sendGTMEvent } from '@next/third-parties/google' | |
| export function EventButton() { | |
| return ( | |
| <div> | |
| <button | |
| onClick={() => sendGTMEvent({ event: 'buttonClicked', value: 'xyz' })} | |
| > | |
| Send Event | |
| </button> | |
| </div> | |
| ) | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| ```jsx filename="pages/index.js" | |
| import { sendGTMEvent } from '@next/third-parties/google' | |
| export function EventButton() { | |
| return ( | |
| <div> | |
| <button | |
| onClick={() => sendGTMEvent({ event: 'buttonClicked', value: 'xyz' })} | |
| > | |
| Send Event | |
| </button> | |
| </div> | |
| ) | |
| } | |
| ``` | |
| </PagesOnly> | |
| Refer to the Tag Manager [developer | |
| documentation](https://developers.google.com/tag-platform/tag-manager/datalayer) to learn about the | |
| different variables and events that can be passed into the function. | |
| #### Server-side Tagging | |
| If you're using a server-side tag manager and serving `gtm.js` scripts from your tagging server you can | |
| use `gtmScriptUrl` option to specify the URL of the script. | |
| #### Options | |
| Options to pass to the Google Tag Manager. For a full list of options, read the [Google Tag Manager | |
| docs](https://developers.google.com/tag-platform/tag-manager/datalayer). | |
| | Name | Type | Description | | |
| | --------------- | -------- | ------------------------------------------------------------------------ | | |
| | `gtmId` | Required | Your GTM container ID. Usually starts with `GTM-`. | | |
| | `gtmScriptUrl` | Optional | GTM script URL. Defaults to `https://www.googletagmanager.com/gtm.js`. | | |
| | `dataLayer` | Optional | Data layer object to instantiate the container with. | | |
| | `dataLayerName` | Optional | Name of the data layer. Defaults to `dataLayer`. | | |
| | `auth` | Optional | Value of authentication parameter (`gtm_auth`) for environment snippets. | | |
| | `preview` | Optional | Value of preview parameter (`gtm_preview`) for environment snippets. | | |
| ### Google Analytics | |
| The `GoogleAnalytics` component can be used to include [Google Analytics | |
| 4](https://developers.google.com/analytics/devguides/collection/ga4) to your page via the Google tag | |
| (`gtag.js`). By default, it fetches the original scripts after hydration occurs on the page. | |
| > **Recommendation**: If Google Tag Manager is already included in your application, you can | |
| > configure Google Analytics directly using it, rather than including Google Analytics as a separate | |
| > component. Refer to the | |
| > [documentation](https://developers.google.com/analytics/devguides/collection/ga4/tag-options#what-is-gtm) | |
| > to learn more about the differences between Tag Manager and `gtag.js`. | |
| <AppOnly> | |
| To load Google Analytics for all routes, include the component directly in your root layout and pass | |
| in your measurement ID: | |
| ```tsx filename="app/layout.tsx" switcher | |
| import { GoogleAnalytics } from '/third-parties/google' | |
| export default function RootLayout({ | |
| children, | |
| }: { | |
| children: React.ReactNode | |
| }) { | |
| return ( | |
| <html lang="en"> | |
| <body>{children}</body> | |
| <GoogleAnalytics gaId="G-XYZ" /> | |
| </html> | |
| ) | |
| } | |
| ``` | |
| ```jsx filename="app/layout.js" switcher | |
| import { GoogleAnalytics } from '/third-parties/google' | |
| export default function RootLayout({ children }) { | |
| return ( | |
| <html lang="en"> | |
| <body>{children}</body> | |
| <GoogleAnalytics gaId="G-XYZ" /> | |
| </html> | |
| ) | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| To load Google Analytics for all routes, include the component directly in your custom `_app` and | |
| pass in your measurement ID: | |
| ```jsx filename="pages/_app.js" | |
| import { GoogleAnalytics } from '/third-parties/google' | |
| export default function MyApp({ Component, pageProps }) { | |
| return ( | |
| <> | |
| <Component {...pageProps} /> | |
| <GoogleAnalytics gaId="G-XYZ" /> | |
| </> | |
| ) | |
| } | |
| ``` | |
| </PagesOnly> | |
| To load Google Analytics for a single route, include the component in your page file: | |
| <AppOnly> | |
| ```jsx filename="app/page.js" | |
| import { GoogleAnalytics } from '/third-parties/google' | |
| export default function Page() { | |
| return <GoogleAnalytics gaId="G-XYZ" /> | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| ```jsx filename="pages/index.js" | |
| import { GoogleAnalytics } from '/third-parties/google' | |
| export default function Page() { | |
| return <GoogleAnalytics gaId="G-XYZ" /> | |
| } | |
| ``` | |
| </PagesOnly> | |
| #### Sending Events | |
| The `sendGAEvent` function can be used to measure user interactions on your page by sending events | |
| using the `dataLayer` object. For this function to work, the `<GoogleAnalytics />` component must be | |
| included in either a parent layout, page, or component, or directly in the same file. | |
| <AppOnly> | |
| ```jsx filename="app/page.js" | |
| 'use client' | |
| import { sendGAEvent } from '/third-parties/google' | |
| export function EventButton() { | |
| return ( | |
| <div> | |
| <button | |
| onClick={() => sendGAEvent('event', 'buttonClicked', { value: 'xyz' })} | |
| > | |
| Send Event | |
| </button> | |
| </div> | |
| ) | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| ```jsx filename="pages/index.js" | |
| import { sendGAEvent } from '/third-parties/google' | |
| export function EventButton() { | |
| return ( | |
| <div> | |
| <button | |
| onClick={() => sendGAEvent('event', 'buttonClicked', { value: 'xyz' })} | |
| > | |
| Send Event | |
| </button> | |
| </div> | |
| ) | |
| } | |
| ``` | |
| </PagesOnly> | |
| Refer to the Google Analytics [developer | |
| documentation](https://developers.google.com/analytics/devguides/collection/ga4/event-parameters) to learn | |
| more about event parameters. | |
| #### Tracking Pageviews | |
| Google Analytics automatically tracks pageviews when the browser history state changes. This means | |
| that client-side navigations between Next.js routes will send pageview data without any configuration. | |
| To ensure that client-side navigations are being measured correctly, verify that the [_“Enhanced | |
| Measurement”_](https://support.google.com/analytics/answer/9216061#enable_disable) property is | |
| enabled in your Admin panel and the _“Page changes based on browser history events”_ checkbox is | |
| selected. | |
| > **Note**: If you decide to manually send pageview events, make sure to disable the default | |
| > pageview measurement to avoid having duplicate data. Refer to the Google Analytics [developer | |
| > documentation](https://developers.google.com/analytics/devguides/collection/ga4/views?client_type=gtag#manual_pageviews) | |
| > to learn more. | |
| #### Options | |
| Options to pass to the `<GoogleAnalytics>` component. | |
| | Name | Type | Description | | |
| | --------------- | -------- | ------------------------------------------------------------------------------------------------------ | | |
| | `gaId` | Required | Your [measurement ID](https://support.google.com/analytics/answer/12270356). Usually starts with `G-`. | | |
| | `dataLayerName` | Optional | Name of the data layer. Defaults to `dataLayer`. | | |
| | `nonce` | Optional | A [nonce](/docs/app/guides/content-security-policy#nonces). | | |
| ### Google Maps Embed | |
| The `GoogleMapsEmbed` component can be used to add a [Google Maps | |
| Embed](https://developers.google.com/maps/documentation/embed/embedding-map) to your page. By | |
| default, it uses the `loading` attribute to lazy-load the embed below the fold. | |
| <AppOnly> | |
| ```jsx filename="app/page.js" | |
| import { GoogleMapsEmbed } from '/third-parties/google' | |
| export default function Page() { | |
| return ( | |
| <GoogleMapsEmbed | |
| apiKey="XYZ" | |
| height={200} | |
| width="100%" | |
| mode="place" | |
| q="Brooklyn+Bridge,New+York,NY" | |
| /> | |
| ) | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| ```jsx filename="pages/index.js" | |
| import { GoogleMapsEmbed } from '/third-parties/google' | |
| export default function Page() { | |
| return ( | |
| <GoogleMapsEmbed | |
| apiKey="XYZ" | |
| height={200} | |
| width="100%" | |
| mode="place" | |
| q="Brooklyn+Bridge,New+York,NY" | |
| /> | |
| ) | |
| } | |
| ``` | |
| </PagesOnly> | |
| #### Options | |
| Options to pass to the Google Maps Embed. For a full list of options, read the [Google Map Embed | |
| docs](https://developers.google.com/maps/documentation/embed/embedding-map). | |
| | Name | Type | Description | | |
| | ----------------- | -------- | --------------------------------------------------------------------------------------------------- | | |
| | `apiKey` | Required | Your api key. | | |
| | `mode` | Required | [Map mode](https://developers.google.com/maps/documentation/embed/embedding-map#choosing_map_modes) | | |
| | `height` | Optional | Height of the embed. Defaults to `auto`. | | |
| | `width` | Optional | Width of the embed. Defaults to `auto`. | | |
| | `style` | Optional | Pass styles to the iframe. | | |
| | `allowfullscreen` | Optional | Property to allow certain map parts to go full screen. | | |
| | `loading` | Optional | Defaults to lazy. Consider changing if you know your embed will be above the fold. | | |
| | `q` | Optional | Defines map marker location. _This may be required depending on the map mode_. | | |
| | `center` | Optional | Defines the center of the map view. | | |
| | `zoom` | Optional | Sets initial zoom level of the map. | | |
| | `maptype` | Optional | Defines type of map tiles to load. | | |
| | `language` | Optional | Defines the language to use for UI elements and for the display of labels on map tiles. | | |
| | `region` | Optional | Defines the appropriate borders and labels to display, based on geo-political sensitivities. | | |
| ### YouTube Embed | |
| The `YouTubeEmbed` component can be used to load and display a YouTube embed. This component loads | |
| faster by using [`lite-youtube-embed`](https://github.com/paulirish/lite-youtube-embed) under the | |
| hood. | |
| <AppOnly> | |
| ```jsx filename="app/page.js" | |
| import { YouTubeEmbed } from '/third-parties/google' | |
| export default function Page() { | |
| return <YouTubeEmbed videoid="ogfYd705cRs" height={400} params="controls=0" /> | |
| } | |
| ``` | |
| </AppOnly> | |
| <PagesOnly> | |
| ```jsx filename="pages/index.js" | |
| import { YouTubeEmbed } from '/third-parties/google' | |
| export default function Page() { | |
| return <YouTubeEmbed videoid="ogfYd705cRs" height={400} params="controls=0" /> | |
| } | |
| ``` | |
| </PagesOnly> | |
| #### Options | |
| | Name | Type | Description | | |
| | ----------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | |
| | `videoid` | Required | YouTube video id. | | |
| | `width` | Optional | Width of the video container. Defaults to `auto` | | |
| | `height` | Optional | Height of the video container. Defaults to `auto` | | |
| | `playlabel` | Optional | A visually hidden label for the play button for accessibility. | | |
| | `params` | Optional | The video player params defined [here](https://developers.google.com/youtube/player_parameters#Parameters). <br/> Params are passed as a query param string. <br/> Eg: `params="controls=0&start=10&end=30"` | | |
| | `style` | Optional | Used to apply styles to the video container. | | |