(Node.js) ChartURL - Create a Signed URL

Demonstrates how to create a signed URL for ChartURL.

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 crypt = new chilkat.Crypt2();

    // Example key: "dek-d7a46236eda961a6c3c18ffcc6b077ba87d27e9ae85f7842c6d427c265dd5f69d5131308d93332353d4a55a4b1160fcf516515a4a9f0aa50fbf2d7a2e7d0f1c5"
    var key = "charturl-sign-encrypt-key";
    // Example token: "dt-RwYN"
    var token = "charturl-token";

    var slug = "weekly-activity";
    var data = "{ \"options\": {\"data\": {\"columns\": [[\"This Week\",10,13],[\"Last Week\",9,5]]}}}";

    crypt.HashAlgorithm = "SHA256";
    crypt.MacAlgorithm = "HMAC";
    crypt.SetMacKeyString(key);
    crypt.EncodingMode = "base64";

    var json = new chilkat.JsonObject();
    json.Load(data);
    console.log("json = " + json.Emit());

    var sig = crypt.MacStringENC(json.Emit());

    var sbUrl = new chilkat.StringBuilder();
    sbUrl.Append("https://charturl.com/i/");
    sbUrl.Append(token);
    sbUrl.Append("/");
    sbUrl.Append(slug);
    sbUrl.Append("?d=");
    sbUrl.Append(crypt.EncodeString(json.Emit(),"utf-8","url"));
    sbUrl.Append("&s=");
    sbUrl.Append(crypt.EncodeString(sig,"utf-8","url"));

    console.log("Signed URL: " + sbUrl.GetAsString());

}

chilkatExample();