Amazon Pay SDK (PHP)
Amazon Pay API Integration
Requirements
-
Amazon Pay account:
-
PHP 5.5 or higher
-
Curl 7.18 or higher
Support for PHP 5.3 and 5.4 is being deprecated. The SDK will work in these older environments, but future versions may not. We encourage merchants to move to a newer version of PHP at their earliest convenience.
Documentation
Integration steps can be found below:
Sample
- View the Amazon Pay SDK samples
Quick Start
The client takes in parameters in the following format:
- Associative array
- Path to the JSON file containing configuration information.
Installing using Composer
composer require amzn/amazon-pay-sdk-php
Directory Tree
.
├── composer.json - Configuration for composer
├── LICENSE.txt
├── NOTICE.txt
├── AmazonPay
│ ├── Client.php - Main class with the API calls
│ ├── ClientInterface.php - Shows the public function definitions in Client.php
│ ├── HttpCurl.php - Client class uses this file to execute the GET/POST
│ ├── HttpCurlInterface.php - Shows the public function definitions in the HttpCurl.php
│ ├── IpnHandler.php - Class handles verification of the IPN
│ ├── IpnHandlerInterface.php - Shows the public function definitions in the IpnHandler.php
│ ├── Regions.php - Defines the regions that is supported
│ ├── ResponseParser.php - Parses the API call response
│ └── ResponseInterface.php - Shows the public function definitions in the ResponseParser.php
├── README.md
└── UnitTests
├── ClientTest.php
├── config.json
├── coverage.txt
├── IpnHandlerTest.php
└── Signature.php
Parameters List
Mandatory Parameters
Parameter | variable name | Values |
---|---|---|
Merchant Id | merchant_id |
Default : null |
Access Key | access_key |
Default : null |
Secret Key | secret_key |
Default : null |
Region | region |
Default : null Other: us ,de ,uk ,jp |
Optional Parameters
Parameter | Variable name | Values |
---|---|---|
Currency Code | currency_code |
Default : null Other: USD ,EUR ,GBP ,JPY |
Environment | sandbox |
Default : false Other: true |
Platform ID | platform_id |
Default : null |
CA Bundle File | cabundle_file |
Default : null |
Application Name | application_name |
Default : null |
Application Version | application_version |
Default : null |
Proxy Host | proxy_host |
Default : null |
Proxy Port | proxy_port |
Default : -1 |
Proxy Username | proxy_username |
Default : null |
Proxy Password | proxy_password |
Default : null |
LWA Client ID | client_id |
Default : null |
Handle Throttle | handle_throttle |
Default : true Other: false |
Setting Configuration
Your Amazon Pay keys are available in your Seller Central account
Setting configuration while instantiating the Client object
<?php
namespace AmazonPay;
require_once 'Client.php';
// or, instead of using require_once, you can use the phar file instead
// include 'amazon-pay.phar';
// PHP Associative array
$config = array(
'merchant_id' => 'YOUR_MERCHANT_ID',
'access_key' => 'YOUR_ACCESS_KEY',
'secret_key' => 'YOUR_SECRET_KEY',
'client_id' => 'YOUR_LOGIN_WITH_AMAZON_CLIENT_ID',
'region' => 'REGION');
// or, instead of setting the array in the code, you can
// initialze the Client by specifying a JSON file
// $config = 'PATH_TO_JSON_FILE';
// Instantiate the client class with the config type
$client = new Client($config);
Testing in Sandbox Mode
The sandbox parameter is defaulted to false if not specified:
<?php
namespace AmazonPay;
$config = array(
'merchant_id' => 'YOUR_MERCHANT_ID',
'access_key' => 'YOUR_ACCESS_KEY',
'secret_key' => 'YOUR_SECRET_KEY',
'client_id' => 'YOUR_LOGIN_WITH_AMAZON_CLIENT_ID',
'region' => 'REGION',
'sandbox' => true);
$client = new Client($config);
// Also you can set the sandbox variable in the config() array of the Client class by
$client->setSandbox(true);
Setting Proxy values
Proxy parameters can be set after Instantiating the Client Object with the following setter
$proxy = array();
$proxy['proxy_user_host'] // Hostname for the proxy
$proxy['proxy_user_port'] // Hostname for the proxy
$proxy['proxy_user_name'] // If your proxy requires a username
$proxy['proxy_user_password'] // If your proxy requires a password
$client->setProxy($proxy);
Making an API Call
Below is an example on how to make the GetOrderReferenceDetails API call:
<?php
namespace AmazonPay;
$requestParameters = array();
// AMAZON_ORDER_REFERENCE_ID is obtained from the Amazon Pay Address/Wallet widgets
// ACCESS_TOKEN is obtained from the GET parameter from the URL.
// Required Parameter
$requestParameters['amazon_order_reference_id'] = 'AMAZON_ORDER_REFERENCE_ID';
// Optional Parameter
$requestParameters['address_consent_token'] = 'ACCESS_TOKEN';
$requestParameters['mws_auth_token'] = 'MWS_AUTH_TOKEN';
$response = $client->getOrderReferenceDetails($requestParameters);
See the API Response section for information on parsing the API response.
Below is an example on how to make the GetMerchantAccountStatus API call:
$requestParameters = array();
// Optional Parameter
$requestParameters['mws_auth_token'] = 'MWS_AUTH_TOKEN';
$response = $client->getMerchantAccountStatus($requestParameters);
echo $response->toXml() . "\n";
// Sample Response
<GetMerchantAccountStatusResponse xmlns="http://mws.amazonservices.com/schema/OffAmazonPayments/2013-01-01">
<GetMerchantAccountStatusResult>
<AccountStatus>ACTIVE</AccountStatus>
</GetMerchantAccountStatusResult>
<ResponseMetadata>
<RequestId>b0a141f7-712a-4830-8014-2aa0c446b04e</RequestId>
</ResponseMetadata>
</GetMerchantAccountStatusResponse>
See the API Response section for information on parsing the API response.
Below is an example on how to make the ListOrderReference API call:
$requestParameters = array();
// Required Parameter
$configArray['query_id'] = 'SELLER_ORDER_ID';
$configArray['query_id_type'] = 'SellerOrderId';
// Optional Parameter
$requestParameters['mws_auth_token'] = 'MWS_AUTH_TOKEN';
$configArray['page_size'] = "1";
$response = $client->listOrderReference($requestParameters);
echo $response->toXml() . "\n";
// Sample Response
<ListOrderReferenceResponse xmlns="http://mws.amazonservices.com/schema/OffAmazonPayments/2013-01-01">
<ListOrderReferenceResult>
<OrderReferenceList>
<OrderReference>
<ReleaseEnvironment>Sandbox</ReleaseEnvironment>
<OrderReferenceStatus>
<LastUpdateTimestamp>2018-08-06T22:45:37.314Z</LastUpdateTimestamp>
<State>Open</State>
</OrderReferenceStatus>
<AmazonOrderReferenceId>S01-6649662-0708590</AmazonOrderReferenceId>
<CreationTimestamp>2018-08-06T22:45:28.203Z</CreationTimestamp>
<SellerOrderAttributes>
<StoreName>PHP SDK Test goGetOrderReferenceDetails</StoreName>
<CustomInformation>PHP SDK Custom Information Testing</CustomInformation>
<SellerOrderId>PHP SDK ID# 12345</SellerOrderId>
</SellerOrderAttributes>
<OrderTotal>
<CurrencyCode>USD</CurrencyCode>
<Amount>0.01</Amount>
</OrderTotal>
</OrderReference>
</OrderReferenceList>
<NextPageToken>eyJuZXh0UGFn...=</NextPageToken>
</ListOrderReferenceResult>
<ResponseMetadata>
<RequestId>5749768d-307b-493b-90b0-8b5b9f2ea436</RequestId>
</ResponseMetadata>
</ListOrderReferenceResponse>
See the API Response section for information on parsing the API response.
Below is an example on how to make the ListOrderReferenceByNextToken API call:
$requestParameters = array();
// Required Parameter
$configArray['next_page_token'] = "NEXT_PAGE_TOKEN";
$response = $client->listOrderReferenceByNextToken($requestParameters);
echo $response->toXml() . "\n";
// Sample Response
<ListOrderReferenceByNextTokenResponse xmlns="http://mws.amazonservices.com/schema/OffAmazonPayments/2013-01-01">
<ListOrderReferenceByNextTokenResult>
<OrderReferenceList>
<OrderReference>
<ReleaseEnvironment>Sandbox</ReleaseEnvironment>
<OrderReferenceStatus>
<LastUpdateTimestamp>2018-08-06T22:42:50.191Z</LastUpdateTimestamp>
<State>Open</State>
</OrderReferenceStatus>
<AmazonOrderReferenceId>S01-1662310-7599388</AmazonOrderReferenceId>
<CreationTimestamp>2018-08-06T22:42:35.904Z</CreationTimestamp>
<SellerOrderAttributes>
<StoreName>PHP SDK Test goGetOrderReferenceDetails</StoreName>
<CustomInformation>PHP SDK Custom Information Testing</CustomInformation>
<SellerOrderId>PHP SDK ID# 12345</SellerOrderId>
</SellerOrderAttributes>
<OrderTotal>
<CurrencyCode>USD</CurrencyCode>
<Amount>0.01</Amount>
</OrderTotal>
</OrderReference>
</OrderReferenceList>
<NextPageToken>eyJuZXh0UGFnZVRva2VuIjoiQUFBQUFBQUFBQ...</NextPageToken>
</ListOrderReferenceByNextTokenResult>
<ResponseMetadata>
<RequestId>8e06c852-4072-4cfb-99a3-060ec1ef7be8</RequestId>
</ResponseMetadata>
</ListOrderReferenceByNextTokenResponse>
See the API Response section for information on parsing the API response.
IPN Handling
- To receive IPN's successfully you will need an valid SSL on your domain.
- You can set up your Notification endpoints by either (a) using the Seller Central Integration Settings page Settings tab, or (b) by using the SetMerchantNotificationConfiguration API call.
- IpnHandler.php class handles verification of the source and the data of the IPN
Add the below code into any file and set the URL to the file location in Merchant/Integrator URL by accessing Integration Settings page in the Settings tab.
<?php
namespace AmazonPay;
require_once 'IpnHandler.php';
// Get the IPN headers and Message body
$headers = getallheaders();
$body = file_get_contents('php://input');
// Create an object($ipnHandler) of the IpnHandler class
$ipnHandler = new IpnHandler($headers, $body);
See the IPN Response section for information on parsing the IPN response.
Setting notification endpoints using SetMerchantNotificationConfiguration API
$client = new AmazonPay\Client($config);
// possible array values: ALL, ORDER_REFERENCE, PAYMENT_AUTHORIZE, PAYMENT_CAPTURE, PAYMENT_REFUND, BILLING_AGREEMENT, CHARGEBACK_DETAILED
$notificationConfiguration['https://dev.null/ipn/onetime'] = array('ORDER_REFERENCE', 'PAYMENT_AUTHORIZE', 'PAYMENT_CAPTURE');
$notificationConfiguration['https://dev.null/ipn/recurring'] = array('BILLING_AGREEMENT');
$notificationConfiguration['https://dev.null/ipn/refunds'] = array('PAYMENT_REFUND', 'CHARGEBACK_DETAILED');
$requestParameters['notification_configuration_list'] = $notificationConfiguration;
// or, if you prefer all IPNs come to the same endpoint, do this one-liner instead:
// $requestParameters['notification_configuration_list'] = array('https://dev.null/ipn' => array('ALL'));
// if you are calling on behalf of another merhcant using delegated access, be sure to set the merchant ID and auth token:
// $requestParameters['merchant_id'] = 'THE_MERCHANT_ID';
// $requestParameters['mws_auth_token'] = 'THE_MWS_AUTH_TOKEN';
$response = $client->setMerchantNotificationConfiguration($requestParameters);
if ($response->toArray()['ResponseStatus'] !== '200') {
print "error occured calling API";
}
// to troubleshoot, you can call GetMerchantNotificationConfiguration to view current IPN settings
$response = $client->getMerchantNotificationConfiguration($requestParameters);
print $response->toXml();
Convenience Methods
Charge Method
The charge method combines the following API calls:
Standard Payments / Recurring Payments
- SetOrderReferenceDetails / SetBillingAgreementDetails
- ConfirmOrderReference / ConfirmBillingAgreement
- Authorize / AuthorizeOnBillingAgreement
For Standard payments the first charge
call will make the SetOrderReferenceDetails, ConfirmOrderReference, Authorize API calls.
Subsequent call to charge
method for the same Order Reference ID will make the call only to Authorize.
For Recurring payments the first charge
call will make the SetBillingAgreementDetails, ConfirmBillingAgreement, AuthorizeOnBillingAgreement API calls.
Subsequent call to charge
method for the same Billing Agreement ID will make the call only to AuthorizeOnBillingAgreement.
Capture Now can be set to
true
for digital goods . For Physical goods it's highly recommended to set the Capture Now tofalse
and the amount captured by making thecapture
API call after the shipment is complete.
Parameter | Variable Name | Mandatory | Values |
---|---|---|---|
Amazon Reference ID | amazon_reference_id |
yes | OrderReference ID (starts with P01 or S01 ) or Billing Agreement ID ( starts with B01 or C01 ) |
Amazon OrderReference ID | amazon_order_reference_id |
no | OrderReference ID (starts with P01 or S01 ) if no Amazon Reference ID is provided |
Amazon Billing Agreement ID | amazon_billing_agreement_id |
no | Billing Agreement ID (starts with B01 or C01 ) if no Amazon Reference ID is provided |
Merchant ID | merchant_id |
no | Value taken from config array in Client.php |
Charge Amount | charge_amount |
yes | Amount that needs to be captured. Maps to API call variables amount , authorization_amount |
Currency code | currency_code |
no | If no value is provided, value is taken from the config array in Client.php |
Authorization Reference ID | authorization_reference_id |
yes | Unique string to be passed |
Transaction Timeout | transaction_timeout |
no | Timeout for Authorization - Defaults to 1440 minutes |
Capture Now | capture_now |
no | Will capture the payment automatically when set to true . Defaults to false |
Charge Note | charge_note |
no | Note that is sent to the buyer. Maps to API call variables seller_note , seller_authorization_note |
Charge Order ID | charge_order_id |
no | Custom order ID provided Maps to API call variables seller_order_id , seller_billing_agreement_id |
Store Name | store_name |
no | Name of the store |
Platform ID | platform_id |
no | Platform ID of the Solution provider |
Custom Information | custom_information |
no | Any custom string |
MWS Auth Token | mws_auth_token |
no | MWS Auth Token required if API call is made on behalf of the seller |
ExpectImmediateAuthorization | expect_immediate_authorization |
no | Setting value to true, will make OrderReferenceObject to be closed automatically in case no authorization is triggered within 60 minutes |
// Create an array that will contain the parameters for the charge API call
$requestParameters = array();
// Adding the parameters values to the respective keys in the array
$requestParameters['amazon_reference_id'] = 'AMAZON_REFERENCE_ID';
// Or
// If $requestParameters['amazon_reference_id'] is not provided,
// either one of the following ID input is needed
$requestParameters['amazon_order_reference_id'] = 'AMAZON_ORDER_REFERENCE_ID';
$requestParameters['amazon_billing_agreement_id'] = 'AMAZON_BILLING_AGREEMENT_ID';
$requestParameters['seller_id'] = null;
$requestParameters['charge_amount'] = '100.50';
$requestParameters['currency_code'] = 'USD';
$requestParameters['authorization_reference_id'] = 'UNIQUE STRING';
$requestParameters['transaction_timeout'] = 0;
$requestParameters['capture_now'] = false; //true for Digital goods
$requestParameters['charge_note'] = 'Example item note';
$requestParameters['charge_order_id'] = '1234-Example-Order';
$requestParameters['store_name'] = 'Example Store';
$requestParameters['platform_Id'] = null;
$requestParameters['custom_information'] = 'Any_Custom_String';
$requestParameters['mws_auth_token'] = null;
// Get the Authorization response from the charge method
$response = $client->charge($requestParameters);
See the API Response section for information on parsing the API response.
Obtain profile information (getUserInfo method)
- obtains the user's profile information from Amazon using the access token returned by the Button widget.
- An access token is granted by the authorization server when a user logs in to a site.
- An access token is specific to a client, a user, and an access scope. A client must use an access token to retrieve customer profile data.
Parameter | Variable Name | Mandatory | Values |
---|---|---|---|
Access Token | access_token |
yes | Retrieved as GET parameter from the URL |
Region | region |
yes | Default :null Other: us ,de ,uk ,jp Value is set in config['region'] array |
LWA Client ID | client_id |
yes | Default: null Value should be set in config array |
<?php namespace AmazonPay;
// config array parameters that need to be instantiated
$config = array(
'client_id' => 'YOUR_LWA_CLIENT_ID',
'region' => 'REGION');
$client = new Client($config);
// Client ID can also be set using the setter function setClientId($client_id)
$client->setClientId(‘YOUR_LWA_CLIENT_ID’);
// Get the Access Token from the URL
$access_token = 'ACCESS_TOKEN';
// Calling the function getUserInfo with the access token parameter returns object
$userInfo = $client->getUserInfo($access_token);
// Buyer name
$userInfo['name'];
// Buyer Email
$userInfo['email'];
// Buyer User Id
$userInfo['user_id'];
Response Parsing
Responses are provided in 3 formats
- XML/Raw response
- Associative array
- JSON format
API Response
// Returns an object($response) of the class ResponseParser.php
$response = $client->getOrderReferenceDetails($requestParameters);
// XML response
$response->toXml();
// Associative array response
$response->toArray();
// JSON response
$response->toJson();
IPN Response
$ipnHandler = new IpnHandler($headers, $body);
// Raw message response
$ipnHandler->returnMessage();
// Associative array response
$ipnHandler->toArray();
// JSON response
$ipnHandler->toJson();
Logging
SDK logging of sanitized requests and responses can work with any PSR-3 compliant logger such as Monolog.
API Response
namespace AmazonPay;
require 'vendor/autoload.php';
include 'amazon-pay.phar';
use Monolog\Logger;
use Monolog\Handler\StreamHandler;
date_default_timezone_set('America/Los_Angeles');
$log = new Logger('TestSDK');
$log->pushHandler(new StreamHandler('php://stdout', Logger::DEBUG));
$client = new Client('us.config');
$client->setLogger($log);
$response = $client->getServiceStatus();