Інтеграція REANE ID у ваш Сервіс

# Python FastAPI Implementation
import requests
from fastapi import FastAPI, Request
from fastapi.responses import RedirectResponse

app = FastAPI()

CLIENT_ID = "your_client_id"
CLIENT_SECRET = "your_client_secret"
REDIRECT_URI = "https://your-site.com/auth/callback"

@app.get("/login")
def login():
    gateway_url = f"https://id.reane.com.ua/oauth/authorize?client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&response_type=code&state=secure_state"
    return RedirectResponse(gateway_url)

@app.get("/auth/callback")
def callback(code: str, state: str):
    # Exchange single-use authorization code
    token_resp = requests.post("https://id.reane.com.ua/oauth/v2/token", json={
        "grant_type": "authorization_code",
        "code": code,
        "client_id": CLIENT_ID,
        "client_secret": CLIENT_SECRET,
        "redirect_uri": REDIRECT_URI
    }).json()

    # Fetch resident claims
    userinfo = requests.get("https://id.reane.com.ua/oauth/v2/userinfo", headers={
        "Authorization": f"Bearer {token_resp['access_token']}"
    }).json()

    return {
        "status": "AUTHENTICATED",
        "resident_name": userinfo.get("name"),
        "tax_id": userinfo.get("tax_id"),
        "email": userinfo.get("email"),
        "kyc_status": userinfo.get("reane_kyc_status")
    }

<?php
// PHP OAuth 2.1 Callback Handler
$clientId = 'your_client_id';
$clientSecret = 'your_client_secret';
$code = $_GET['code'] ?? null;

if (!$code) {
    // Redirect to REANE ID Gateway
    $authUrl = "https://id.reane.com.ua/oauth/authorize?client_id={$clientId}&redirect_uri=" . urlencode("https://your-site.com/callback.php") . "&response_type=code";
    header("Location: $authUrl");
    exit;
}

// Exchange Code for Access Token
$ch = curl_init('https://id.reane.com.ua/oauth/v2/token');
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
    'grant_type' => 'authorization_code',
    'code' => $code,
    'client_id' => $clientId,
    'client_secret' => $clientSecret
]));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$tokens = json_decode(curl_exec($ch), true);
curl_close($ch);

// Fetch User Profile
$ch2 = curl_init('https://id.reane.com.ua/oauth/v2/userinfo');
curl_setopt($ch2, CURLOPT_HTTPHEADER, ["Authorization: Bearer {$tokens['access_token']}"]);
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, true);
$resident = json_decode(curl_exec($ch2), true);
curl_close($ch2);

echo "Вітаємо, " . htmlspecialchars($resident['name']) . "! РНОКПП: " . htmlspecialchars($resident['tax_id']);
?>