(Android™) 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 Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // 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) {
        Log.i(TAG, 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.
    Log.i(TAG, "response status code = " + String.valueOf(http.get_LastStatus()));

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

    Log.i(TAG, "response JSON:");
    Log.i(TAG, jsonResp.emit());

    // A successful response looks like this:

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

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}