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next-plausible

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next-plausible

Simple integration for https://nextjs.org and https://plausible.io analytics.

3.6.5
Source
npm

Version published: 2 years ago

Weekly downloads: 0

Maintainers: 1

Weekly downloads

Created: 4 years ago

Source

Next-Plausible ·

Simple integration for https://nextjs.org and https://plausible.io analytics.

See it in action at https://next-plausible.vercel.app, and this commit for a real world example.

Important: If you're using a version of next lower than 11.1.0 please use next-plausible@2 to avoid type checking errors (see https://github.com/4lejandrito/next-plausible/issues/25).

Usage

Include the Analytics Script

To enable Plausible analytics in your Next.js app you'll need to expose the Plausible context, <PlausibleProvider />, at the top level of your application inside _app.js:

// pages/_app.js
import PlausibleProvider from 'next-plausible'

export default function MyApp({ Component, pageProps }) {
  return (
    <PlausibleProvider domain="example.com">
      <Component {...pageProps} />
    </PlausibleProvider>
  )
}

If you want to enable Plausible analytics only on a single page you can wrap the page in a PlausibleProvider component:

// pages/home.js
import PlausibleProvider from 'next-plausible'

export default Home() {
  return (
    <PlausibleProvider domain="example.com">
      <h1>My Site</h1>
      {/* ... */}
    </PlausibleProvider>
  )
}

If are using the app directory include PlausibleProvider inside the root layout:

// app/layout.js
import PlausibleProvider from 'next-plausible'

export default function RootLayout({ children }) {
  return (
    <html>
      <head>
        <PlausibleProvider domain="example.com" />
      </head>
      <body>{children}</body>
    </html>
  )
}

`PlausibleProvider` Props

Name	Description
`domain`	The domain of the site you want to monitor.
`customDomain`	Set this if you use a custom domain to serve the analytics script. Defaults to https://plausible.io. See https://plausible.io/docs/custom-domain for more details.
`trackOutboundLinks`	Set this to `true` if you want to enable outbound link click tracking.
`trackFileDownloads`	Set this to `true` if you want to enable file download tracking.
`trackLocalhost`	Set this to `true` if you want to enable localhost tracking as described here.
`manualPageviews`	Set this to `true` if you want to disable automatic pageview events as described here.
`exclude`	Set this if you want to exclude a set of pages from being tracked. See https://plausible.io/docs/excluding-pages for more details.
`selfHosted`	Set this to `true` if you are self hosting your Plausible instance. Otherwise you will get a 404 when requesting the script.
`enabled`	Use this to explicitly decide whether or not to render script. If not passed the script will be rendered in production environments.
`integrity`	Optionally define the subresource integrity attribute for extra security.
`scriptProps`	Optionally override any of the props passed to the script element. See example.

Proxy the Analytics Script

To avoid being blocked by adblockers plausible recommends proxying the script. To do this you need to wrap your next.config.js with the withPlausibleProxy function:

const { withPlausibleProxy } = require('next-plausible')

module.exports = withPlausibleProxy()({
  // ...your next js config, if any
  // Important! it is mandatory to pass a config object, even if empty
})

This will set up the necessary rewrites as described here and configure PlausibleProvider to use the local URLs so you can keep using it like this:

  <PlausibleProvider domain="example.com">
    ...
  </PlausibleProvider>
}

Optionally you can overwrite the proxied script subdirectory and name, as well as the custom domain for the original script:

const { withPlausibleProxy } = require('next-plausible')

module.exports = withPlausibleProxy({
  subdirectory: 'yoursubdirectory',
  scriptName: 'scriptName',
  customDomain: 'http://example.com',
})({
  // ...your next js config, if any
  // Important! it is mandatory to pass a config object, even if empty
})

This will load the script from /yoursubdirectory/js/scriptName.js and fetch it from http://example.com/js/script.js.

Notes:

Proxying will only work if you serve your site using next start. Statically generated sites won't be able to rewrite the requests.
If you are self hosting plausible, you need to set customDomain to your instance otherwise no data will be sent.

Bear in mind that tracking requests will be made to the same domain, so cookies will be forwarded. See https://github.com/4lejandrito/next-plausible/issues/67. If this is an issue for you, from next@13.0.0 you can use middleware to strip the cookies like this:

import { NextResponse } from 'next/server'

export function middleware(request) {
  const requestHeaders = new Headers(request.headers)
  requestHeaders.set('cookie', '')
  return NextResponse.next({
    request: {
      headers: requestHeaders,
    },
  })
}

export const config = {
  matcher: '/proxy/api/event',
}

Send Custom Events

Plausible supports custom events as described at https://plausible.io/docs/custom-event-goals. This package provides the usePlausible hook to safely access the plausible function like this:

import { usePlausible } from 'next-plausible'

export default function PlausibleButton() {
  const plausible = usePlausible()

  return (
    <>
      <button onClick={() => plausible('customEventName')}>Send</button>

      <button
        id="foo"
        onClick={() =>
          plausible('customEventName', {
            props: {
              buttonId: 'foo',
            },
          })
        }
      >
        Send with props
      </button>
    </>
  )
}

If you use Typescript you can type check your custom events like this:

import { usePlausible } from 'next-plausible'

type MyEvents = {
  event1: { prop1: string }
  event2: { prop2: string }
  event3: never
}

const plausible = usePlausible<MyEvents>()

Only those events with the right props will be allowed to be sent using the plausible function.

Developing

npm run build will generate the production scripts under the dist folder.

v3.6.5 (2022-12-06)

Full Changelog

Closed issues:

Add usePlausibleEvent #73
Request Header Fields Too Large when using combined with auth0/next-auth #67
The root value has an unexpected property #65

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Package last updated on 06 Dec 2022

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