Ipasa ang sarili mong User ID, Wallet ID, Transaction ID, o click reference sa aming tracking URL upang ang parehong halaga ay bumalik sa iyo sa ibang pagkakataon sa postback..

Para sa mga daloy ng mobile app, maaari mo ring ipasa ang IDFA (Apple) o GAID (Google) kasama ng iyong mga subid:

Sa loob ng Postback Configuration, i-save ang URL na dapat tumanggap ng iyong mga abiso ng conversion. Magsimula sa pinakamababang macro na talagang kailangan mo, pagkatapos ay magdagdag pa ng mga field lamang kung ginagamit ito ng iyong sistema.:

Kung gusto mo ang lahat ng kasalukuyang sinusuportahang canonical na field, maaaring ganito ang hitsura ng iyong postback URL:

Maaaring magpadala ang CPAlead ng mga postback ng publisher sa parehong HTTP at HTTPS na endpoint.

Start with {subid}, {lead_id}, {campaign_id}, {campaign_name}, and {payout}. In the current publisher postback flow, {virtual_currency} is typically 0.

Ito ang mga pangunahing macro ng CPAlead na maaari mong ilagay sa iyong URL. Papalitan ang mga ito ng aktuwal na halaga ng conversion kapag naipadala ang iyong postback:

Kung nililimitahan ng iyong endpoint ang papasok na trapiko, i-whitelist ang IPA ng relay ng CPAlead na ipinapakita sa ibaba upang tanggapin ng iyong server ang paghahatid ng postback.

Ipinapakita ng halimbawang ito ang mas ligtas na panimulang punto para sa pasadyang integrasyon: beripikahin ang password, gamitin ang lead_id para sa idempotency, iimbak ang hilaw na payload, at gantimpalaan lamang ang user nang isang beses.

<?php
declare(strict_types=1);

/*
 * CPAlead publisher postback example.
 *
 * Recommended CPAlead URL:
 * https://example.com/postback/cpalead.php?subid={subid}&lead_id={lead_id}&campaign_id={campaign_id}&campaign_name={campaign_name}&payout={payout}&password={password}
 *
 * Notes:
 * - {subid} should usually be your internal user ID or click/reference ID.
 * - {lead_id} should be stored uniquely so retries do not double-credit a user.
 * - {payout} is the most reliable reward input in the current publisher flow.
 * - {virtual_currency} is currently sent as 0 in the standard publisher postback flow.
 */

const DB_HOST = '127.0.0.1';
const DB_PORT = '3306';
const DB_NAME = 'your_database';
const DB_USER = 'your_user';
const DB_PASS = 'your_password';
const POSTBACK_PASSWORD = 'replace_with_your_secret';

$subid = trim((string) ($_GET['subid'] ?? ''));
$leadId = (int) ($_GET['lead_id'] ?? 0);
$campaignId = (int) ($_GET['campaign_id'] ?? 0);
$campaignName = trim((string) ($_GET['campaign_name'] ?? ''));
$payout = (float) ($_GET['payout'] ?? 0);
$countryIso = strtoupper(substr((string) ($_GET['country_iso'] ?? ''), 0, 2));
$ipAddress = trim((string) ($_GET['ip_address'] ?? ''));
$password = (string) ($_GET['password'] ?? '');

if (POSTBACK_PASSWORD !== '' && !hash_equals(POSTBACK_PASSWORD, $password)) {
    http_response_code(403);
    exit('Invalid postback password.');
}

if ($subid === '' || $leadId <= 0) {
    http_response_code(400);
    exit('Missing subid or lead_id.');
}

$dsn = sprintf('mysql:host=%s;port=%s;dbname=%s;charset=utf8mb4', DB_HOST, DB_PORT, DB_NAME);
$pdo = new PDO($dsn, DB_USER, DB_PASS, [
    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
]);

$pdo->beginTransaction();

try {
    /*
     * Create a table like:
     * CREATE TABLE cpalead_postbacks (
     *   id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
     *   lead_id BIGINT UNSIGNED NOT NULL UNIQUE,
     *   user_id VARCHAR(100) NOT NULL,
     *   campaign_id BIGINT UNSIGNED NOT NULL,
     *   campaign_name VARCHAR(255) NOT NULL,
     *   payout DECIMAL(10,4) NOT NULL DEFAULT 0,
     *   country_iso CHAR(2) NULL,
     *   ip_address VARCHAR(45) NULL,
     *   raw_query TEXT NULL,
     *   created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
     * );
     */
    $insert = $pdo->prepare(
        'INSERT INTO cpalead_postbacks
            (lead_id, user_id, campaign_id, campaign_name, payout, country_iso, ip_address, raw_query, created_at)
         VALUES
            (:lead_id, :user_id, :campaign_id, :campaign_name, :payout, :country_iso, :ip_address, :raw_query, NOW())'
    );
    $insert->execute([
        ':lead_id' => $leadId,
        ':user_id' => $subid,
        ':campaign_id' => $campaignId,
        ':campaign_name' => $campaignName,
        ':payout' => $payout,
        ':country_iso' => $countryIso ?: null,
        ':ip_address' => $ipAddress ?: null,
        ':raw_query' => json_encode($_GET, JSON_UNESCAPED_SLASHES),
    ]);
} catch (PDOException $e) {
    // MySQL duplicate-key error: the lead was already processed.
    if (($e->errorInfo[1] ?? null) === 1062) {
        $pdo->rollBack();
        http_response_code(200);
        exit('Duplicate lead ignored.');
    }

    $pdo->rollBack();
    throw $e;
}

/*
 * Example reward logic:
 * - If you run a cash-back system, you may choose to credit $payout directly.
 * - If you run a points system, convert $payout to your own point value here.
 */
$rewardAmount = $payout;

$updateUser = $pdo->prepare('UPDATE users SET balance = balance + :amount WHERE id = :user_id');
$updateUser->execute([
    ':amount' => $rewardAmount,
    ':user_id' => $subid,
]);

if ($updateUser->rowCount() !== 1) {
    $pdo->rollBack();
    http_response_code(404);
    exit('User not found.');
}

$pdo->commit();

http_response_code(200);
echo sprintf(
    'OK lead_id=%d user=%s campaign_id=%d payout=%.4f',
    $leadId,
    $subid,
    $campaignId,
    $payout
);