Kunal Kumar KunalKumarSwift

To get the APPLE_PRIVATE_KEY for app attestation, you'll need to follow these steps in your Apple Developer account:

Go to Apple Developer Portal

Visit https://developer.apple.com Sign in with your Apple Developer account Click on "Certificates, Identifiers & Profiles"

Create a new key:

	import Foundation

	class APIManager {
	static let shared = APIManager()
	private let baseURL = "http://localhost:3000" // Replace with your server's URL

	/// Fetches a challenge from the server
	func fetchChallenge(completion: @escaping (Result<(String, String), Error>) -> Void) {
	guard let url = URL(string: "\(baseURL)/generate-challenge") else { return }

	const express = require('express');
	const bodyParser = require('body-parser');
	const crypto = require('crypto');
	const cbor = require('cbor');

	const app = express();
	app.use(bodyParser.json());

	// Apple's App Attest root certificate (replace with actual PEM format certificate)
	const APPLE_ROOT_CERT_PEM = `

	const cbor = require('cbor');

	// Example base64-encoded attestation object (replace with your actual data)
	const base64AttestationObject = "your_base64_encoded_attestation_object";

	// Decode the Base64 string into a buffer
	const attestationBuffer = Buffer.from(base64AttestationObject, 'base64');

	// Decode the CBOR object
	cbor.decodeFirst(attestationBuffer)

	const express = require("express");
	const fetch = require("node-fetch");
	const jwt = require("jsonwebtoken");
	const app = express();
	const port = 9000;

	// Apple's attestation API endpoint (using development endpoint)
	const APPLE_ATTESTATION_API =
	"https://api.development.devicecheck.apple.com/v1/validate_device_token";
	// For production use: https://api.devicecheck.apple.com/v1/validate_device_token

	import DeviceCheck
	import CryptoKit

	class AppAttestationService {
	private let dcAppAttestService = DCAppAttestService.shared
	// Update to your local machine's IP address - don't use localhost since iOS simulator/device
	// needs to reach your computer's actual IP
	private let serverURL = URL(string: "http://192.168.1.X:3000/verify-attestation")!

	func performAttestation() async throws {

	APPLE_TEAM_ID=your_team_id
	APPLE_KEY_ID=your_key_id
	APPLE_PRIVATE_KEY=-----BEGIN PRIVATE KEY-----\nYour Private Key Here\n-----END PRIVATE KEY-----

	{
	"public_identifier":"kunalkumar91",
	"profile_pic_url":"None",
	"background_cover_image_url":"https://media.licdn.com/dms/image/v2/D5616AQFZv7evcAE94A/profile-displaybackgroundimage-shrink_350_1400/profile-displaybackgroundimage-shrink_350_1400/0/1716177983373?e=1737590400&v=beta&t=SmnAGatxJRpbCRbSFhYCp5POxlxRE25CBX5iYWZTq2g",
	"first_name":"Kunal",
	"last_name":"Kumar",
	"full_name":"Kunal Kumar",
	"follower_count":1048,
	"occupation":"Software Architect at Scotiabank Digital Factory",
	"headline":"Software Architect at Scotiabank Digital Factory \| Ex-Accenture \| Transforming ideas into MVPs 💡📈",