@fingerprintjs/fingerprintjs-pro
v3.11.5
Published
Fingerprint Pro JavaScript agent
Downloads
421,348
Readme
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:
- Register a new PRO account at dashboard.fingerprint.com/signup (there is a free trial)
- After registration go to the dashboard and select the created subscription
- Go the "API Keys" page in the navigation side bar on the left side of the page
- Copy a key with type "Public"
Install from NPM
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({ apiKey: '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)
})()
Alternatively you can install from CDN
<script>
// Initialize the agent at application startup.
const fpPromise = import('https://fpjscdn.net/v3/your-pro-key')
.then(FingerprintJS => FingerprintJS.load())
// 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>
Note that you need to replace your-pro-key
with a public API key from the dashboard.
See also
⏱ How to upgrade from Open Source to Pro in 30 seconds
⬆️ How to migrate from Fingerprint Pro version 2