Java SDK Integration

Connect your online shop to Unzer payment system using Java SDK.

Unzer Java SDK provides a layer of abstraction on top of Unzer API, simplifying the integration process and making it a convenient choice for Java based online shopping solutions.

In this part of the documentation you’ll learn how to start using Unzer Java SDK, how to handle some common tasks (API errors and notifications), and most of all what are the essential API resources and how to use them with the SDK.

If you want to see these resources ‘in action’, combined to accept and manage payments check one of our step-by-step guides on how to integrate a payment method using Payment pages, UI components or your own UI.

If you are still using the old heidelpay Java SDK, check the migration guide.

Next steps

Install Java SDK

Install the Java SDK and start integrating with Unzer.

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Basic usage of the Java SDK

Learn about the basic usage of the Java SDK.

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Manage Java SDK resources

Learn about Unzer API resources exposed via Java SDK.

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Error handling

Error and debug information provided by Unzer API and SDK.

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Receive notifications about any changes related to your payments.

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Migrate to Unzer Java SDK

Migrate from old heidelpay PHP SDK to the new Unzer PHP SDK.

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