Who said OAuth/OAuth2 was difficult? Configuring ScribeJava is so easy your grandma can do it! check it out:

OAuthService service = new ServiceBuilder(YOUR_API_KEY)
                                  .apiSecret(YOUR_API_SECRET)
                                  .build(LinkedInApi20.instance());

That single line (added newlines for readability) is the only thing you need to configure ScribeJava with LinkedIn's OAuth API for example.

Working executable examples are here Common usage: example

Hit ScribeJava as hard and with many threads as you like.

That's it. You can use it in old environments and in android apps. note: To compile from sources you will need Java 9 or newer

ScribeJava support out-of-box several HTTP clients:

• ning async http client 1.9.x (maven module scribejava-httpclient-ning) example
• Async Http Client asynchttpclient 2.x (maven module scribejava-httpclient-ahc) example
• OkHttp (maven module scribejava-httpclient-okhttp) example
• Apache HttpComponents HttpClient (maven module scribejava-httpclient-apache) example
• Armeria HTTP client (required >= java 8) example
• any externally created HTTP client example

just add corresponding maven modules to your pom

• RFC 6749 The OAuth 2.0 Authorization Framework, Authorization Code Authorization Grant, example
• RFC 6749 The OAuth 2.0 Authorization Framework, Resource Owner Password Credentials Authorization Grant
• RFC 6749 The OAuth 2.0 Authorization Framework, Client Credentials Authorization Grant, example
• RFC 6749 The OAuth 2.0 Authorization Framework, Refreshing an Access Token, example
• RFC 6750 The OAuth 2.0 Authorization Framework: Bearer Token Usage
• RFC 7636 Proof Key for Code Exchange by OAuth Public Clients (PKCE), example
• RFC 7009 OAuth 2.0 Token Revocation, example
• RFC 8628 OAuth 2.0 Device Authorization Grant example
• RFC 5849 The OAuth 1.0 Protocol, example

• Atlassian (https://developer.atlassian.com) example

• Asana (https://asana.com/) example

• Automatic (https://www.automatic.com/) example

• AWeber (http://www.aweber.com/) example

• Box (https://www.box.com/) example

• Dataporten (https://docs.dataporten.no/) example

• Digg (http://digg.com/) example

• Discord (https://discordapp.com/) example

• Доктор на работе (https://www.doktornarabote.ru/)

• Dropbox (https://www.dropbox.com/) example

• Etsy (https://www.etsy.com/) example

• Facebook (https://www.facebook.com/) example, example with Async Apache HTTP client, example with Async Ning HTTP client

• Fitbit (https://www.fitbit.com/) example

• Flickr (https://www.flickr.com/) example

• Foursquare (https://foursquare.com/) example, example

• Frappe (https://github.com/frappe/frappe) example

• Freelancer (https://www.freelancer.com/) example

• Genius (http://genius.com/) example

• GitHub (https://github.com/) example, example with OkHttp HTTP client

• Google (https://www.google.com/) example, example with Async Http Client, example Revoke, example with PKCEE

• HeadHunter ХэдХантер (https://hh.ru/) example

• HiOrg-Server (https://www.hiorg-server.de/) example

• Imgur (http://imgur.com/) example

• Instagram (https://www.instagram.com/) example

• Kaixin 开心网 (http://www.kaixin001.com/) example

• Kakao (https://kakao.com/) example

• Keycloak (https://www.keycloak.org/) example

• LinkedIn (https://www.linkedin.com/) example, example, example with custom scopes

• Mail.Ru (https://mail.ru/) example, example with Async Ning HTTP Client

• MediaWiki (https://www.mediawiki.org/) example

• Meetup (https://www.meetup.com/) example, example

• Microsoft Azure Active Directory (Azure AD) (http://azure.microsoft.com/) example

• Microsoft Azure Active Directory (Azure AD) 2.0 (http://azure.microsoft.com/) example

• Microsoft Live (https://login.live.com/) example

• Misfit (http://misfit.com/) example

• NAVER (http://www.naver.com/) example

• Odnoklassniki Одноклассники (http://ok.ru/) example

• Polar (https://www.polar.com/) example

• Pinterest (https://www.pinterest.com/) example

• 500px (https://500px.com/) example

• Renren (http://renren.com/) example

• Salesforce (https://www.salesforce.com/) example, example with Async Ning HTTP Client

• Sina (http://www.sina.com.cn/ http://weibo.com/login.php) example, example

• Skyrock (http://skyrock.com/) example

• Slack (https://slack.com/) example

• StackExchange (http://stackexchange.com/) example

• The Things Network (v1-staging and v2-preview) (https://www.thethingsnetwork.org/) example v1, example v2 preview

• Trello (https://trello.com/) example

• Tumblr (https://www.tumblr.com/) example

• TUT.BY (http://www.tut.by/) example

• Twitter (https://twitter.com/) example

• uCoz (https://www.ucoz.com/) example

• Viadeo (http://viadeo.com/) example

• VK ВКонтакте (http://vk.com/) example, example Client Credentials Grant, example with External HTTP Client

• Wunderlist (https://www.wunderlist.com/) example

• Xero (https://www.xero.com/) example

• XING (https://www.xing.com/) example

• Yahoo (https://www.yahoo.com/) example, example

• check the examples folder

ScribeJava's code is small (about 1k LOC) and simple to understand. No smart-ass or "clever" hacks here. You can use only 'core' or 'with apis' maven modules

Works out of the box with android(TM) applications.

Good test coverage to keep you safe from harm.

When something bad actually happens, ScribeJava's meaningful error messages will tell you exactly what went wrong, when and where.

You can pull ScribeJava from the central maven repository, just add these to your pom.xml file:

<dependency>
    <groupId>com.github.scribejava</groupId>
    <artifactId>scribejava-apis</artifactId>
    <version>8.3.1</version>
</dependency>

And in case you need just core classes (that's it, without any external API (FB, VK, GitHub, Google etc) specific code), you could pull just 'core' artifact.

<dependency>
    <groupId>com.github.scribejava</groupId>
    <artifactId>scribejava-core</artifactId>
    <version>8.3.1</version>
</dependency>

First of all, Pull Requests are welcome, the second option is donations.

When you will send the pull request. That's the way for a majority of changes here. Or you can ask someone to make the paid job for you. In some cases, when I'm interested in changes (technically or financially), I can implement the request myself.

If you or your business depends on the Scribejava and you need any specific improvement or new feature not currently implemented in the Scribejava, consider contacting me about a paid job.

Check the Getting Started page and start rocking! Please Read the FAQ before creating an issue :)

Some useful info and answers you can find on the wiki

Also, remember to read the fantastic tutorial that @akoskm wrote to easily integrate a server side app with an API (twitter in this case).

Feel free to drop us an email or create issue right here on github.com

If you have a useful fork that should be listed there please contact us