Facebook OAuth 2.0 Example using Scribe Java with asyncNingHttpClientConfig

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

Facebook OAuth Example with asyncNingHttpClientConfig

FacebookAsyncNingExample.java

import com.ning.http.client.AsyncHttpClientConfig;
import java.util.Random;
import java.util.Scanner;
import java.util.concurrent.ExecutionException;
import com.github.scribejava.apis.FacebookApi;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.model.ForceTypeOfHttpRequest;
import com.github.scribejava.core.model.OAuth2AccessToken;
import com.github.scribejava.core.model.OAuthRequestAsync;
import com.github.scribejava.core.model.Response;
import com.github.scribejava.core.model.ScribeJavaConfig;
import com.github.scribejava.core.model.Verb;
import com.github.scribejava.core.oauth.OAuth20Service;
import java.io.IOException;

public abstract class FacebookAsyncNingExample {

    private static final String NETWORK_NAME = "Facebook";
    private static final String PROTECTED_RESOURCE_URL = "http://ift.tt/29qmF1n";

    public static void main(String... args) throws InterruptedException, ExecutionException, IOException {
        // Replace these with your client id and secret
        final String clientId = "your client id";
        final String clientSecret = "your client secret";
        final String secretState = "secret" + new Random().nextInt(999_999);
        ScribeJavaConfig.setForceTypeOfHttpRequests(ForceTypeOfHttpRequest.FORCE_ASYNC_ONLY_HTTP_REQUESTS);
        final AsyncHttpClientConfig clientConfig = new AsyncHttpClientConfig.Builder()
                .setMaxConnections(5)
                .setRequestTimeout(10_000)
                .setAllowPoolingConnections(false)
                .setPooledConnectionIdleTimeout(1_000)
                .setReadTimeout(1_000)
                .build();

        final OAuth20Service service = new ServiceBuilder()
                .apiKey(clientId)
                .apiSecret(clientSecret)
                .state(secretState)
                .callback("http://ift.tt/29ygMme")
                .asyncNingHttpClientConfig(clientConfig)
                .build(FacebookApi.instance());

        final Scanner in = new Scanner(System.in, "UTF-8");

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

        System.out.println("And paste the state from server here. We have set 'secretState'='" + secretState + "'.");
        System.out.print(">>");
        final String value = in.nextLine();
        if (secretState.equals(value)) {
            System.out.println("State value does match!");
        } else {
            System.out.println("Ooops, state value does not match!");
            System.out.println("Expected = " + secretState);
            System.out.println("Got      = " + value);
            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.getAccessTokenAsync(code, null).get();
        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...");
        final OAuthRequestAsync request = new OAuthRequestAsync(Verb.GET, PROTECTED_RESOURCE_URL, service);
        service.signRequest(accessToken, request);
        final Response response = request.sendAsync(null).get();
        System.out.println("Got it! Lets see what we found...");
        System.out.println();
        System.out.println(response.getCode());
        System.out.println(response.getBody());

        System.out.println();
        System.out.println("Thats it man! Go and build something awesome with ScribeJava! :)");
        service.closeAsyncClient();
    }
}