ScribeJava - OAuth client Java library

Nowadays every project need social registration for attract more users but according to most developers it is a hard task. OAuth/OAuth2 was difficult? Configuring ScribeJava is so easy your grandma can do it!

Supports all major OAuth APIs out-of-the-box

In this tutorial we will walk through an example on how to use ScribeJava with Twitter (OAuth 1.0a).

Install ScribeJava

First of all, you need to install ScribeJava. You either download two jars manually from the downloads page and and include apache commons codec, or just let maven take care of everything adding this to your pom.xml file:

  <version>3.2.0</version> // please use always the latest version

Or for gradle:

dependencies {
    compile 'com.github.scribejava:scribejava-apis:3.2.0'

Create the OAuthService object

final OAuth10aService service = new ServiceBuilder()

Yup, that’s it. 🙂

The example uses OOB OAuth, if you want to pass a callbackUrl so that Twitter redirects you there just add
a callback("http://your_callback_url") call before build()

Get the request token

final OAuth1RequestToken requestToken = service.getRequestToken();

Easy right?

Making the user validate your request token

Let’s help your users authorize your app to do the OAuth calls.

For this you need to redirect them to the following URL:

String authUrl = service.getAuthorizationUrl(requestToken);

After this either the user will get a verifier code (if this is an OOB request) or you’ll receive a redirect from Twitter with the verifier and the requestToken on it (if you provided a callbackUrl)

Get the access Token

Now that you have (somehow) the verifier, you need to exchange your requestToken and verifier for an accessToken which is the one used to sign requests.

final OAuth1AccessToken accessToken = service.getAccessToken(requestToken, "verifier you got from the user/callback");

Sign request

You are all set to make your first API call, so let’s do it!

final OAuthRequest request = new OAuthRequest(Verb.GET, "", service);
service.signRequest(accessToken, request); // the access token from step 4
final Response response = request.send();

That’s it! You already know everything you need to start building a cool OAuth application.

Good Luck!

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