LinkedIn OAuth 2.0 Example using Scribe Java

In this example we are going to see about how to use LinkedIn OAuth 2.0 using Scribe Java

LinkedIn OAuth 2.0 Example

LinkedIn20Example.java

import java.util.Scanner;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.apis.LinkedInApi20;
import com.github.scribejava.core.model.OAuth2AccessToken;
import com.github.scribejava.core.model.OAuthRequest;
import com.github.scribejava.core.model.Response;
import com.github.scribejava.core.model.Verb;
import com.github.scribejava.core.oauth.OAuth20Service;
import java.io.IOException;

public abstract class LinkedIn20Example {

    private static final String NETWORK_NAME = "LinkedIn";
    private static final String PROTECTED_RESOURCE_URL = "http://ift.tt/1IMslDz";

    public static void main(String... args) throws IOException {
        // Replace these with your client id and secret
        final String clientId = "your client id";
        final String clientSecret = "your client secret";
        final OAuth20Service service = new ServiceBuilder()
                .apiKey(clientId).apiSecret(clientSecret)
                .scope("r_basicprofile r_emailaddress") // replace with desired scope
                .callback("http://ift.tt/Yr2taA")
                .state("some_params")
                .build(LinkedInApi20.instance());
        final Scanner in = new Scanner(System.in);

        System.out.println("=== " + NETWORK_NAME + "'s OAuth Workflow ===");
        System.out.println();

        // Obtain the Authorization URL
        System.out.println("Fetching the Authorization URL...");
        final String authorizationUrl = service.getAuthorizationUrl();
        System.out.println("Got the Authorization URL!");
        System.out.println("Now go and authorize ScribeJava here:");
        System.out.println(authorizationUrl);
        System.out.println("And paste the authorization code here");
        System.out.print(">>");
        final String code = in.nextLine();
        System.out.println();

        // Trade the Request Token and Verfier for the Access Token
        System.out.println("Trading the Request Token for an Access Token...");
        final OAuth2AccessToken accessToken = service.getAccessToken(code);
        System.out.println("Got the Access Token!");
        System.out.println("(if your curious it looks like this: " + accessToken
                + ", 'rawResponse'='" + accessToken.getRawResponse() + "')");
        System.out.println();

        // Now let's go and ask for a protected resource!
        System.out.println("Now we're going to access a protected resource...");
        while (true) {
            System.out.println("Paste profile query for fetch (firstName, lastName, etc) or 'exit' to stop example");
            System.out.print(">>");
            final String query = in.nextLine();
            System.out.println();

            if ("exit".equals(query)) {
                break;
            }

            final OAuthRequest request = new OAuthRequest(Verb.GET, String.format(PROTECTED_RESOURCE_URL, query),
                    service);
            request.addHeader("x-li-format", "json");
            request.addHeader("Accept-Language", "ru-RU");
            service.signRequest(accessToken, request);
            final Response response = request.send();
            System.out.println();
            System.out.println(response.getCode());
            System.out.println(response.getBody());

            System.out.println();
        }
    }
}