(Node.js) 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

Note: This example requires Chilkat v11.0.0 or greater.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var success = false;

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

    var http = new chilkat.Http();

    http.BasicAuth = true;
    http.Login = "API_USERNAME";
    http.Password = "API_PASSWORD";

    // Build and send the following JSON:

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

    var json = new chilkat.JsonObject();
    json.UpdateString("merchid","MERCHANT_ID");
    json.UpdateString("retref","106631225001");

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

    var url = "https://<site>.cardconnect.com:<port>/cardconnect/rest/sigcap";

    var resp = new chilkat.HttpResponse();
    success = http.HttpStr("PUT",url,json.Emit(),"utf-8","application/json",resp);
    if (success == false) {
        console.log(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.
    console.log("response status code = " + resp.StatusCode);

    var jsonResp = new chilkat.JsonObject();
    jsonResp.Load(resp.BodyStr);
    jsonResp.EmitCompact = false;

    console.log("response JSON:");
    console.log(jsonResp.Emit());

    // A successful response looks like this:

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

}

chilkatExample();