(Java) CardConnect Signature Capture

Demonstrates how to upload a BMP image of a handwritten signature.

This signature capture service augments an existing authorization record with the provided signature data. ...

See https://developer.cardconnect.com/cardconnect-api?lang=json#signature-capture

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

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

    CkHttp http = new CkHttp();
    boolean success;

    http.put_BasicAuth(true);
    http.put_Login("API_USERNAME");
    http.put_Password("API_PASSWORD");

    // Build and send the following JSON:

    // {
    //   "merchid": "MERCHANT_ID",
    //   "retref": "112989260941",
    //   "signature": "BASE64_GZIPPED_BMP_DATA"
    // }

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("merchid","MERCHANT_ID");
    json.UpdateString("retref","106631225001");

    // Load the .bmp containing a 200px x 100px signature.
    CkBinData bd = new CkBinData();
    success = bd.LoadFile("qa_data/bmp/signature.bmp");
    // Gzip compress.
    CkGzip gzip = new CkGzip();
    success = gzip.CompressBd(bd);
    // Add to the JSON in base64 format
    json.UpdateString("signature",bd.getEncoded("base64"));

    String url = "https://<site>.cardconnect.com:<port>/cardconnect/rest/sigcap";
    String responseStr = http.putText(url,json.emit(),"utf-8","application/json",false,false);
    if (http.get_LastMethodSuccess() == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    // A response status of 200 indicates potential success.  The JSON response body
    // must be examined to determine if it was truly successful or an error.
    System.out.println("response status code = " + http.get_LastStatus());

    CkJsonObject jsonResp = new CkJsonObject();
    jsonResp.Load(responseStr);
    jsonResp.put_EmitCompact(false);

    System.out.println("response JSON:");
    System.out.println(jsonResp.emit());

    // A successful response looks like this:

    // {
    //   "resptext": "signature stored",
    //   "retref": "106631225001",
    //   "respcode": "02",
    //   "merchid": "MERCHANT_ID"
    // }
  }
}