Client Libraries & Sample Code

Note: The projects listed below are open source projects hosted on code.google.com. These projects issue regular releases which will be listed in the project's download area. Feel free to use the project's issue tracker to log bugs and feature requests, and the project's wiki to document tips and tricks.

Contributions to these projects are welcome: if you are interested in contributing, please join the fun and post a proposal to the Merchant Forum Client Libraries section.

Client Libraries and Sample Code

The following client libraries and sample code can help provide a foundation for your integration. They help make it easier for you to build the XML for a cart post, encode and sign the cart, build the infrastructure for posting carts and receiving notifications, perform merchant calculations, and more. Select the appropriate sample code for your environment below. The sample code projects are licensed under the Apache 2.0 license.

Open Source Shopping Carts Integrations

The following projects are integrations of Google Checkout with open source shopping carts. Select the appropriate project for your shopping cart software below. They are licensed under the GPL 2.0 license.