FingerprintJS Pro - Usage Guide

Introduction

This guide explains how to use fingerprintjs-pro to obtain a unique token with a single function call. Note that fingerprintjs-pro requires an API key and is restricted to specific domains.

Features

• Accurate Device Identification: Identify users across browsers and devices.
• Enhanced Security: Prevent fraud and unauthorized access.
• Easy Integration: Simple API for seamless integration.
• Fast & Reliable: Generates fingerprints in milliseconds.
• React Compatible: Works in React applications.
• Unique Browser ID: Generates a unique ID per browser instance.

Installation

Install fingerprintjs-pro using npm or yarn:

1npm install fingerprintjs-pro

or

1yarn add fingerprintjs-pro

Importing the Function

Import getFingerprint in your JavaScript/TypeScript file:

1import { getFingerprint } from 'fingerprintjs-pro';

Getting the Token

Call getFingerprint() with your API key:

1async function fetchToken(apiKey) {
2    try {
3        const response = await getFingerprint(apiKey);
4        console.log('API Response:', response);
5    } catch (error) {
6        console.error('Error fetching fingerprint:', error);
7    }
8}
9
10fetchToken('your-api-key-here');

API Response Format

1{
2    "status": 200,
3    "token": "e3fee4271f1c4f1552a2cfe15ac470162f7b7d8b97b65a6f7495cc65cff103a7"
4}

Response Fields

• status: HTTP status code (200 means success)
• token: Unique token

Error Handling

Handle potential errors like network issues or API failures:

1async function fetchToken(apiKey) {
2    try {
3        const response = await getFingerprint(apiKey);
4        if (response.status === 200) {
5            console.log('Token:', response.token);
6        } else {
7            console.warn('Unexpected response:', response);
8        }
9    } catch (error) {
10        console.error('Failed to fetch token:', error);
11    }
12}

Conclusion

Use fingerprintjs-pro to retrieve unique tokens securely. Ensure error handling and domain access validation.