(Java) Iterate Pages in Feed

Demonstrates how to read the next page in the user's Facebook feed, and iterates through all of the pages in the Facebook feed.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // This example assumes a previously obtained an access token
    CkOAuth2 oauth2 = new CkOAuth2();
    oauth2.put_AccessToken("FACEBOOK-ACCESS-TOKEN");

    CkRest rest = new CkRest();

    // Connect to Facebook and send the following GET request:
    boolean success = rest.Connect("graph.facebook.com",443,true,true);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    // Provide the authentication credentials (i.e. the access key)
    rest.SetAuthOAuth2(oauth2);

    // Gets the 1st page in the user's feed.
    String responseJson = rest.fullRequestNoBody("GET","/v2.7/me/feed");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    json.put_EmitCompact(false);
    json.Load(responseJson);

    // 
    // See Parsing the Facebook User Feed for code showing how to parse the JSON feed content.
    // 

    CkUrl nextUrl = new CkUrl();

    // Get the URL for the next page in the feed.
    String nextUrlStr = json.stringOf("paging.next");
    while (json.get_LastMethodSuccess() == true) {

        System.out.println("Next page URL: " + nextUrlStr);

        nextUrl.ParseUrl(nextUrlStr);

        // Prepare for getting the next page in the feed.
        // We can continue using the same REST object.
        // If already connected, we'll continue using the existing connection.
        // Otherwise, a new connection will automatically be made if needed.
        rest.ClearAllQueryParams();
        rest.AddQueryParams(nextUrl.query());

        responseJson = rest.fullRequestNoBody("GET","/v2.7/me/feed");
        if (rest.get_LastMethodSuccess() != true) {
            System.out.println(rest.lastErrorText());
            return;
            }

        json.Load(responseJson);
        // See Parsing the Facebook User Feed for code showing how to parse the JSON feed content.

        // Get the URL for the next page.
        nextUrlStr = json.stringOf("paging.next");
        }

    System.out.println("No more pages in the feed.");
  }
}