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https://github.com/googleapis/google-http-java-client

Google HTTP Client Library for Java
https://github.com/googleapis/google-http-java-client

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Google HTTP Client Library for Java

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# Google HTTP Client Library for Java



[![Maven][maven-version-image]][maven-version-link]

![Stability][stability-image]

[![CI Status][ci-status-image]][ci-status-link]



## Description

Written by Google, the Google HTTP Client Library for Java is a flexible, efficient, and powerful

Java library for accessing any resource on the web via HTTP. The library has the following

features:



- Pluggable HTTP transport abstraction that allows you to use any low-level library such as

java.net.HttpURLConnection, Apache HTTP Client, or URL Fetch on Google App Engine.

- Efficient JSON and XML data models for parsing and serialization of HTTP response and request

content. The JSON and XML libraries are also fully pluggable, and they include support for

[Jackson](https://github.com/FasterXML/jackson) and Android's GSON libraries for JSON.



The library supports the following Java environments:



- Java 7 or higher

  - The google-http-client-jackson2 and google-http-client-appengine modules require Java 8 or

    higher due to their dependencies.

- Android 4.4 (Kit Kat)

- GoogleAppEngine Google App Engine



The following related projects are built on the Google HTTP Client Library for Java:



- [Google OAuth Client Library for Java][google-oauth-client], for the OAuth 2.0 and OAuth 1.0a

authorization standards.

- [Google APIs Client Library for Java][google-api-client], for access to Google APIs.



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



## Beta Features



Features marked with the `@Beta` annotation at the class or method level are subject to change. They

might be modified in any way, or even removed, in any major release. You should not use beta

features if your code is a library itself (that is, if your code is used on the `CLASSPATH` of users

outside your own control).



## Deprecated Features



Deprecated non-beta features will be removed eighteen months after the release in which they are

first deprecated. You must fix your usages before this time. If you don't, any type of breakage

might result, and you are not guaranteed a compilation error.



## Documentation



- [Developer's Guide](https://googleapis.github.io/google-http-java-client/)

- [Setup Instructions](https://googleapis.github.io/google-http-java-client/setup.html)

- [JavaDoc](https://googleapis.dev/java/google-http-client/latest/)

- [Release Notes](https://github.com/googleapis/google-http-java-client/releases)

- [Support (Questions, Bugs)](https://developers.google.com/api-client-library/java/google-http-java-client/support)



[google-oauth-client]: https://github.com/googleapis/google-oauth-java-client

[google-api-client]: https://github.com/googleapis/google-api-java-client

[contributions]: CONTRIBUTING.md



[ci-status-image]: https://github.com/googleapis/google-http-java-client/actions/workflows/ci.yaml/badge.svg?event=push

[ci-status-link]: https://github.com/googleapis/google-http-java-client/actions?query=event%3Apush

[maven-version-image]: https://img.shields.io/maven-central/v/com.google.http-client/google-http-client.svg

[maven-version-link]: https://search.maven.org/search?q=g:com.google.http-client%20AND%20a:google-http-client&core=gav

[stability-image]: https://img.shields.io/badge/stability-stable-green