How to Integrate Fingerprinting with Laravel

Introduction

Laravel is a powerful PHP framework. We’ll create a controller and route to fetch visitor fingerprints.

Prerequisites

Laravel installed (composer create-project laravel/laravel fingerprinting-laravel)
API key from Fingerprinting API

Step 1: Create an API Service

Run the following command:

php artisan make:service FingerprintService

Modify app/Services/FingerprintService.php:

<?php

namespace App\Services;
use Illuminate\Support\Facades\Http;

class FingerprintService
{
    protected $apiKey;
    protected $apiUrl;

    public function __construct()
    {
        $this->apiKey = env('FINGERPRINT_API_KEY');
        $this->apiUrl = 'https://api.fingerprinting-api.com/visitors';
    }

    public function getFingerprint()
    {
        $response = Http

Step 2: Create a Controller

Run:

php artisan make:controller FingerprintController

Modify app/Http/Controllers/FingerprintController.php:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Services\FingerprintService;

class FingerprintController extends Controller
{
    protected $fingerprintService;

    public function __construct(FingerprintService $fingerprintService)
    {
        $this->fingerprintService = $fingerprintService;
    }

    public function show()
    {
        $fingerprintData = $this->fingerprintService->getFingerprint()

Step 3: Create a View

Modify resources/views/fingerprint.blade.php:

<!DOCTYPE html>
<html>
<head>
    <title>Fingerprinting API in Laravel</title>
</head>
  
<body>
    <h1>User Fingerprint Data</h1>
    <pre>{{ print_r($fingerprint, true) }}</pre>
</body>
</html>

Step 4: Define a Route

Modify routes/web.php:

use App\Http\Controllers\FingerprintController;

Route::get('/fingerprint', [FingerprintController::class, 'show']);

Step 5: Test the API

Run the Laravel server:

php artisan serve

Visit:

Eric Tremblay

Feb 25, 2025

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