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PayPal PHP Merchant SDK

Overview

The merchant SDK can be used for integrating with the Express Checkout, Mass Pay, Web Payments Pro APIs.

Prerequisites

PayPal's PHP Merchant SDK requires

  • PHP 5.2 and above with curl/openssl extensions enabled

Installing the SDK

if not using composer

run installation script from merchant-sdk-php/samples directory

curl  https://raw.github.com/paypal/merchant-sdk-php/composer/samples/install.php | php

    or 
    
php install.php

if using composer

Run from merchant-sdk-php/samples directory and after the installation set the path to config file in PPBootStrap.php, config file is in vendor/paypal/merchant-sdk-php/config/

composer update

Using the SDK

To use the SDK,

  • Update the sdk_config.ini with your API credentials.
  • Require "PPBootStrap.php" in your application. [copy it from vendor/paypal/merchant-sdk-php/sample/ if using composer]
  • To run samples : copy samples in [vendor/paypal/merchant-sdk-php/] to root directory and run in browser
  • To build your own application:
  • Create a service wrapper object.
  • Create a request object as per your project's needs. All the API request and response classes are available in services\PayPalAPIInterfaceService\PayPalAPIInterfaceServiceService.php
  • Invoke the appropriate method on the service object.

For example,

//sets config file path and loads all the classes
require("PPBootStrap.php");

// Create request details
$itemAmount = new BasicAmountType($currencyId, $amount);
$setECReqType = new SetExpressCheckoutRequestType();
$setECReqType->SetExpressCheckoutRequestDetails = $setECReqDetails;

// Create request
$setECReq = new SetExpressCheckoutReq();
$setECReq->SetExpressCheckoutRequest = $setECReqType;
......

// Perform request
$paypalService = new PayPalAPIInterfaceServiceService();
$setECResponse = $paypalService->SetExpressCheckout($setECReq);

// Check results
$ack = strtoupper($setECResponse->Ack);
if($ack == 'SUCCESS') {
	// Success
}  

The SDK provides multiple ways to authenticate your API call.

$paypalService = new PayPalAPIInterfaceServiceService();

// Use the default account (the first account) configured in sdk_config.ini
$response = $paypalService->SetExpressCheckout($setECReq);

// Use a specific account configured in sdk_config.inig
$response = $paypalService->SetExpressCheckout($setECReq, 'jb-us-seller_api1.paypal.com');
 
// Pass in a dynamically created API credential object
$cred = new PPCertificateCredential("username", "password", "path-to-pem-file");
$cred->setThirdPartyAuthorization(new PPTokenAuthorization("accessToken", "tokenSecret"));
$response = $paypalService->SetExpressCheckout($setECReq, $cred);

SDK Configuration

Replace the API credential in config/sdk_config.ini . You can use the configuration file to configure

  • (Multiple) API account credentials.
  • Service endpoint and other HTTP connection parameters
  • Logging

Please refer to the sample config file provided with this bundle.

Using multiple SDKs together

*add the required sdk names to 'required' section of composer.json *add the service endpoint to 'config/sdk_config.ini', for the endpoints refer the list below

Endpoint Configuration

*The list below specifies endpoints for different services, in SANDBOX and PRODUCTION, with their property keys and end-point as property values.

------------------------------SANDBOX------------------------------

------------------------------PRODUCTION------------------------------

For additional information please refer to https://www.x.com/developers/paypal/documentation-tools/api

Instant Payment Notification (IPN)

refer to the IPN-README in 'samples/IPN' directory

Getting help

If you need help using the SDK, a new feature that you need or have a issue to report, please visit

https://github.com/paypal/merchant-sdk-php/issues 

OR

https://www.x.com/developers/paypal/forums/express-checkout