Installation of Required Libraries
- Install the PayPal PHP SDK via Composer, which will help you to work with PayPal REST APIs like Partner Referrals seamlessly.
- Execute the following command in your project directory:
composer require paypal/rest-api-sdk-php
Setting Up Authentication
- Utilize OAuth 2.0 for authentication. This will allow the API to authorize your requests securely.
- Begin by creating a credentials file to store your `clientId` and `clientSecret` obtained from your PayPal developer account:
$clientId = 'YOUR_CLIENT_ID';
$clientSecret = 'YOUR_CLIENT_SECRET';
Creating a PayPal API Context
- Set up an API context for making calls to PayPal. This context includes your credentials and environment settings.
- Write the following code to configure your API context:
use PayPal\Rest\ApiContext;
use PayPal\Auth\OAuthTokenCredential;
$apiContext = new ApiContext(
new OAuthTokenCredential(
$clientId,
$clientSecret
)
);
// Set to sandbox for testing
$apiContext->setConfig([
'mode' => 'sandbox'
]);
Making a Partner Referral Request
- Create a JSON payload that represents the partner referral details, including partner-specific information and tracking details.
- Prepare a request using the SDK, which sends this payload to PayPal:
use PayPal\Api\PartnerReferrals;
use PayPal\Api\RequestHeader;
// Create Request Headers
$requestHeaders = new RequestHeader();
$requestHeaders->setPartnerAttributionId('PARTNER_ID');
// Build the Partner Referral Payload
$partnerReferrals = new PartnerReferrals();
$partnerReferrals->setTrackingId('TRACKING_ID');
$partnerReferrals->setClientName('CLIENT_NAME');
// ... Add additional payload details here ...
try {
$response = $partnerReferrals->create($apiContext, $requestHeaders);
echo "Partner Referral Created Successfully! ID: " . $response->getReferralId();
} catch (Exception $ex) {
echo "Failed to create Partner Referral: " . $ex->getMessage();
}
Handling Responses and Errors
- Check the API response after creating a partner referral. A successful request will return the referral ID, which you can use for tracking purposes.
- Implement error handling using try-catch blocks to manage failures gracefully:
try {
//... API request code
} catch (\PayPal\Exception\PayPalConnectionException $ex) {
echo "Connection Error: " . $ex->getData();
} catch (Exception $ex) {
echo "Error occurred: " . $ex->getMessage();
}
Continuing Development and Testing
- Conduct testing in the PayPal sandbox environment to ensure your implementation is functional before moving to production.
- Log the API responses for audit and troubleshooting, especially when handling sensitive partner data.
- Further develop by exploring PayPal's comprehensive SDK documentation to understand additional features or other services you can integrate.
