@fingerprintjs/fingerprintjs-pro
    TypeScript icon, indicating that this package has built-in type declarations

    3.5.5 • Public • Published


    FingerprintJS

    Makes a website visitor identifier from a browser fingerprint. Unlike cookies and local storage, fingerprint stays the same in incognito/private mode and even when browser data is purged. Provides additional information and higher accuracy compared to Open Source FingerprintJS.

    Quick start

    Get a pro key:

    1. Register a new PRO account at dashboard.fingerprintjs.com/signup (there is a free trial)
    2. After registration go to the dashboard and select the created subscription
    3. Go the "Tokens" page in the navigation side bar on the left side of the page
    4. Copy a token with type "Browser"

    Install from CDN

    <script>
      // Initialize an agent at application startup.
      const fpPromise = new Promise((resolve, reject) => {
        const script = document.createElement('script')
        script.onload = resolve
        script.onerror = reject
        script.async = true
        script.src = 'https://cdn.jsdelivr.net/npm/'
          + '@fingerprintjs/fingerprintjs-pro@3/dist/fp.min.js'
        document.head.appendChild(script)
      })
        .then(() => FingerprintJS.load({ token: 'your-pro-key' }))
    
      // Get the visitor identifier when you need it.
      fpPromise
        .then(fp => fp.get())
        .then(result => {
          // This is the visitor identifier:
          const visitorId = result.visitorId
          console.log(visitorId)
        })
    </script>

    Run this code

    Alternatively you can install from NPM to use with Webpack/Rollup/Browserify

    npm i @fingerprintjs/fingerprintjs-pro
    # or
    yarn add @fingerprintjs/fingerprintjs-pro
    import FingerprintJS from '@fingerprintjs/fingerprintjs-pro'
    
    // Initialize an agent at application startup.
    const fpPromise = FingerprintJS.load({ token: 'your-pro-key' })
    
    ;(async () => {
      // Get the visitor identifier when you need it.
      const fp = await fpPromise
      const result = await fp.get()
    
      // This is the visitor identifier:
      const visitorId = result.visitorId
      console.log(visitorId)
    })()

    Run this code

    See also

    🍿 Live demo

    How to upgrade from Open Source to Pro in 30 seconds

    ⬆️ How to migrate from FingerprintJS Pro version 2

    📕 FingerprintJS Pro documentation

    ▶️ Video: use FingerprintJS Pro to prevent multiple signups

    Install

    npm i @fingerprintjs/fingerprintjs-pro

    DownloadsWeekly Downloads

    12,191

    Version

    3.5.5

    License

    none

    Unpacked Size

    317 kB

    Total Files

    9

    Last publish

    Collaborators

    • fp-pro
    • surgie