(Java) REST POST JSON using Gzip Content Encoding

Demonstrates how to send a JSON POST using the gzip Content-Encoding.

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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 requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Use the online tool at https://tools.chilkat.io/Default.cshtml
    // to generate the JSON code that creates this JSON:

    // {
    //     "lists": [
    //         {
    //             "id": "1511199999"
    //         }
    //     ],
    //     "confirmed": false,
    //     "email_addresses": [
    //         {
    //             "email_address": "support@chilkatsoft.com"
    //         }
    //     ],
    //     "first_name": "Matt",
    //     "last_name": "Smith"
    // }
    // 

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("lists[0].id","1511199999");
    json.UpdateBool("confirmed",false);
    json.UpdateString("email_addresses[0].email_address","support@chilkatsoft.com");
    json.UpdateString("first_name","Matt");
    json.UpdateString("last_name","Smith");

    CkRest rest = new CkRest();

    boolean success = rest.Connect("api.constantcontact.com",443,true,true);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    rest.AddHeader("Content-Type","application/json");
    rest.AddHeader("Authorization","Bearer xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx");

    // Tell the server you'll accept only an application/json response.
    rest.AddHeader("Accept","application/json");

    // Indicate that we'll be sending the request body gzipped.
    rest.AddHeader("Content-Encoding","gzip");

    CkStringBuilder sbReq = new CkStringBuilder();
    json.EmitSb(sbReq);

    // Send the POST.
    CkStringBuilder sbResp = new CkStringBuilder();
    success = rest.FullRequestSb("POST","/v2/contacts?action_by=ACTION_BY_VISITOR&api_key=xxxxxxx",sbReq,sbResp);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    System.out.println("Response body:");
    System.out.println(sbResp.getAsString());

    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println("Received error response code: " + rest.get_ResponseStatusCode());
        return;
        }

    CkJsonObject jsonResp = new CkJsonObject();
    jsonResp.LoadSb(sbResp);

    // Use the online tool at https://tools.chilkat.io/jsonParse.cshtml
    // to generate the JSON code that parses the JSON response..
  }
}