Google+ Example for Scribe

GoogleExample.java

private static final String SCOPE = "https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/plus.stream.read " +
            "https://www.googleapis.com/auth/plus.stream.write";

// TO Connect TO Google 
        String appId = "your Google app client key"
        String appSecret = "your Google app client secret"
        String callbackurl = "callback url (must registered with google)"
        OAuthService service = new ServiceBuilder()
                .provider(Google2Api.class) //get provider class from https://gist.github.com/hitenpratap/ac7d306bc5eff1ef0549
                .apiKey(appId)
                .apiSecret(appSecret)
                .callback(callbackurl)
                .scope(SCOPE)
                .build();
                
//redirect your user to following url
String redirectURL = service.getAuthorizationUrl(null);

//Now user should authorize the app and then he would be redirected to callback url with code
Token token = service.getAccessToken(null, new Verifier(req.getParameter('code')));

//Now you can get access token using following code
String accessToken = token.token;

//TO fetch user's basic info from Gogole use following code snippet
String PROTECTED_RESOURCE_URL = "https://www.googleapis.com/oauth2/v1/userinfo?alt=json";
OAuthRequest request = new OAuthRequest(Verb.GET, PROTECTED_RESOURCE_URL);
service.signRequest(token, request);
Response response = request.send();