Developer's Guide

Getting started

To get started with the Google API Client Library for Java, take a look at the available samples.

For information about the structure of the library and its multiple components, see the detailed setup instructions, which include instructions for Maven users.

To ask questions, report bugs, discuss the library, and read the announcements, see the Support page.


The library supports the following authentication methods:


The library makes it easier to batch multiple HTTP requests/responses. For details, see the batch documentation.

Media upload/download

The library has convenient classes that help with media upload and media download.

Supported Java environments

The library supports the following Java environments:

GData client library for Java (deprecated)

If you currently use the GData client library for Java, you need to migrate to the Google API Client Library for Java. For details, see the migration guide.


This is an open-source library, and contributions are welcome.