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[DEPRECATED] Official Klarna REST PHP SDK

Packagist Version Build Status Coverage Status

SDK Deprecation Warning and Sunsetting

Dear community, the SDK you are currently looking at is now deprecated. These are details related to sunsetting:

  • We intend to archive this repo on June 1 2020 (01/06/20)
  • Until November 1 2020 (01/11/20) high severity security issues found within the latest published version will be fixed. All support will cease after this date.
  • No new builds will follow effective April 20 (20/04/2020) apart from the fixes mentioned above.

Workarounds

We are making Klarna REST API definition files available in Swagger / OAS v2 format, under the Klarna API Reference section on the Klarna Developer Portal. These will be regularly updated as the APIs evolve. You can use tools like https://swagger.io/tools/swagger-codegen/ to generate your own SDKs, client libraries, etc.

Shop now. Pay later.

Shop at your favorite stores today and experience the freedom to pay later with Klarna.

Getting started

SDK covers all of Klarna API: https://developers.klarna.com/api/

Prerequisites

API Credentials

Before getting a production account you can get a playground one. Register here to be able to test your SDK integration before go live:

PHP SDK Installation and Usage

Install via Composer

To install the PHP SDK from the Central Composer repository use composer:

composer require klarna/kco_rest

Highly recommended to use version tag when installing SDK.

composer require klarna/kco_rest:1.2.3.4

Detailed information about the PHP SDK package and a list of available versions can be found here: https://packagist.org/packages/klarna/kco_rest

Include the SDK into your PHP file using the Composer autoloader:

<?php

require('vendor/autoload.php');

Manual installation

To install the PHP SDK manually you need to clone the repo to any folder on your machine:

git clone [email protected]:klarna/kco_rest_php.git /path/to/some/folder/kco_rest_php

Include the SDK into your PHP file using the SDK autoloader:

<?php

require('/path/to/some/folder/kco_rest_php/src/autoload.php');

⚠️Warning: Using manually installed SDK requires you to use the CURLTransport instance to send HTTP requests.

Read more about How to use HTTP Transport

Documentation and Examples

Klarna API documentation: https://developers.klarna.com/api/
SDK References: https://klarna.github.io/kco_rest_php/

Example files can be found in the docs/ directory.
Additional documentation can be found at https://developers.klarna.com.

Logging and Debugging

PHP SDK logs information to STDOUT/STDERR. To enable debug mode, set DEBUG_SDK environment variable:

$ DEBUG_SDK=true php <your_program.php>

or

$ export DEBUG_SDK=1
$ php <your_program.php>

Another way to enable Debugging Mode is define the DEBUG_SDK inside your script:

<?php
// some code here
define('DEBUG_SDK', true);
// some code here

Be aware, the SDK just checks if the DEBUG_SDK is defined! It means you will see the debug information by using define('DEBUG_SDK', false); or export DEBUG_SDK=no

More information about the DEBUG_SDK flag can be found here: #32

The output will look like:

DEBUG MODE: Request
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    GET : https://api.playground.klarna.com/customer-token/v1/tokens/TOKEN
Headers : {"User-Agent":["Library\/Klarna.kco_rest_php_3.1.0 (Guzzle\/6.3.3; curl\/7.54.0) OS\/Darwin_17.5.0 Language\/PHP_5.6.37"]}
   Body :

DEBUG MODE: Response
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Headers : {"Content-Type":["application\/json"],"Date":["Wed, 15 Aug 2018 15:55:53 GMT"],"Klarna-Correlation-Id":["ABC-123"],"Server":["openresty"],"Content-Length":["62"],"Connection":["keep-alive"]}
   Body : {
     "status" : "ACTIVE",
     "payment_method_type" : "INVOICE"
   }

Questions and feedback

If you have any questions concerning this product or the implementation, please create an issue: https://github.com/klarna/kco_rest_php/issues/new/choose

Use an official Klarna Contact us form (https://klarna.com) if you have a question about the integration.

How to contribute

At Klarna, we strive toward achieving the highest possible quality for our products. Therefore, we require you to follow these guidelines if you wish to contribute.

To contribute, the following criteria needs to be fulfilled:

  • Description regarding what has been changed and why
  • Pull requests should implement a boxed change
  • All code and documentation must follow the PSR-2 standard
  • New features and bug fixes must have accompanying unit tests:
    • Positive tests
    • Negative tests
    • Boundary tests (if possible)
    • No less than 90% decision coverage
  • All tests should pass

License

Klarna Checkout REST PHP SDK is licensed under Apache License, Version 2.0