Fingerprint Pro React Native

Fingerprint is a device intelligence platform offering 99.5% accurate visitor identification. Fingerprint Pro React Native SDK is an easy way to integrate Fingerprint Pro into your React Native application to call the native Fingerprint Pro libraries (Android and iOS) and identify devices.

Table of contents

• Requirements and limitations
• Dependencies
• How to install
• Usage
  • Hooks approach
  • API Client approach
  • extendedResponseFormat
  • Linking and tagging information
• API Reference
• Additional Resources
• Support and feedback
• License

Requirements and limitations

• React Native 0.73 or higher

• Android 5.0 (API level 21+) or higher

• iOS 13+/tvOS 15+, Swift 5.7 or higher (stable releases)

• Fingerprint Pro request filtering is not supported right now. Allowed and forbidden origins cannot be used.

• Usage inside the Expo environment is not supported right now.

Dependencies

• Fingerprint Pro iOS
• Fingerprint Pro Android

How to install

1. Install the package using your favorite package manager:

• NPM:

  npm install @fingerprintjs/fingerprintjs-pro-react-native --save

• Yarn:

  yarn add @fingerprintjs/fingerprintjs-pro-react-native

• PNPM:

  pnpm add @fingerprintjs/fingerprintjs-pro-react-native

2. Configure native dependencies

• iOS

  cd ios && pod install

• Android

  Add a declaration of the Fingerprint Android repository to your app main build.gradle file to the allprojects section:

  maven {
    url("https://maven.fpregistry.io/releases")
  }
  maven {
    url("https://www.jitpack.io")
  }

  The file location is {rootDir}/android/build.gradle. After the changes the build.gradle file should look as following:

  allprojects {
   repositories {
     mavenCentral()
     mavenLocal()
     maven {
       // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
       url("$rootDir/../node_modules/react-native/android")
     }
     maven {
       // Android JSC is installed from npm
       url("$rootDir/../node_modules/jsc-android/dist")
     }
     maven {
       url("https://maven.fpregistry.io/releases")
     }
     maven {
       url("https://www.jitpack.io")
     }
     google()
   }
  }

Usage

To identify visitors, you need a Fingerprint Pro account (you can sign up for free).

• Go to the Fingerprint Pro dashboard.
• Open App Settings > API Keys to find your Public API key.

Hooks approach

Configure the SDK by wrapping your application in FingerprintJsProProvider.

// src/index.js
import React from 'react';
import { AppRegistry } from 'react-native';
import { FingerprintJsProProvider } from '@fingerprintjs/fingerprintjs-pro-react-native';
import App from './App';

const WrappedApp = () => (
    <FingerprintJsProProvider
        apiKey={'your-fpjs-public-api-key'}
        region={'eu'}
    >
        <App />
    </FingerprintJsProProvider>
);

AppRegistry.registerComponent('AppName', () => WrappedApp);

Use the useVisitorData hook in your components to perform visitor identification and get the data.

// src/App.js
import React, { useEffect } from 'react';
import { Text } from 'react-native';
import { useVisitorData } from '@fingerprintjs/fingerprintjs-pro-react-native';

function App() {
  const {
    isLoading,
    error,
    data,
    getData,
  } = useVisitorData();

  useEffect(() => {
    getData();
  }, []);

  if (isLoading) {
    return <Text>Loading...</Text>;
  }
  if (error) {
    return <Text>An error occured: {error.message}</Text>;
  }

  if (data) {
    // perform some logic based on the visitor data
    return (
      <Text>
        Visitor id is {data.visitorId}
      </Text>
    );
  } else {
    return null;
  }
}

export default App;

API Client approach

import React, { useEffect } from 'react';
import { FingerprintJsProAgent } from '@fingerprintjs/fingerprintjs-pro-react-native';

// ... 

useEffect(() => {
  async function getVisitorInfo() {
    try {
      const FingerprintClient = new FingerprintJsProAgent({ apiKey: 'PUBLIC_API_KEY', region: 'eu' }); // Region may be 'us', 'eu', or 'ap'
      const visitorId = await FingerprintClient.getVisitorId(); // Use this method if you need only visitorId
      const visitorData = await FingerprintClient.getVisitorData(); // Use this method if you need additional information about visitor
      // use visitor data in your code
    } catch (e) {
      console.error('Error: ', e);
    }
  }
  getVisitorInfo();
}, []);

extendedResponseFormat

Two types of responses are supported: "default" and "extended". You don't need to pass any parameters to get the "default" response. "Extended" is an extended result format that includes geolocation, incognito mode and other information. It can be requested using the extendedResponseFormat: true parameter. See more details about the responses in the documentation.

Providing extendedResponseFormat with hooks approach

  return (
    <FingerprintJsProProvider apiKey={PUBLIC_API_KEY} extendedResponseFormat={true}>
      <App />
    </FingerprintJsProProvider>
  )

Providing extendedResponseFormat with API Client approach

const FingerprintClient = new FingerprintJsProAgent({ apiKey: 'PUBLIC_API_KEY', region: 'eu', extendedResponseFormat: true }); // Region may be 'us', 'eu', or 'ap'
// =================================================================================================^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Linking and tagging information

The visitorId provided by Fingerprint Identification is especially useful when combined with information you already know about your users, for example, account IDs, order IDs, etc. To learn more about various applications of the linkedId and tag, see Linking and tagging information.

const tag = {
  userAction: 'login',
  analyticsId: 'UA-5555-1111-1'
};
const linkedId = 'user_1234';

// Using hooks
const { getData } = useVisitorData();
const visitorData = await getData(tag, linkedId);

// Using the client
const FingerprintClient = new FingerprintJsProAgent({ apiKey: 'PUBLIC_API_KEY'});
const visitorId = await FingerprintClient.getVisitorId(tag, linkedId);
const visitor = await FingerprintClient.getVisitorData(tag, linkedId); 

API Reference

See the full generated API Reference.

Additional Resources

• Server-to-Server API
• Fingerprint Pro documentation

Support and feedback

To report problems, ask questions or provide feedback, please use Issues. If you need private support, please email us at oss-support@fingerprint.com.

License

This project is licensed under the MIT license.