(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

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

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    var http = new chilkat.Http();
    var success;

    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 responseStr = http.PutText(url,json.Emit(),"utf-8","application/json",false,false);
    if (http.LastMethodSuccess == 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 = " + http.LastStatus);

    var jsonResp = new chilkat.JsonObject();
    jsonResp.Load(responseStr);
    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();