(Java) ChartURL - Create a Signed URL

Demonstrates how to create a signed URL for ChartURL.

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.

    CkCrypt2 crypt = new CkCrypt2();

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

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

    crypt.put_HashAlgorithm("SHA256");
    crypt.put_MacAlgorithm("HMAC");
    crypt.SetMacKeyString(key);
    crypt.put_EncodingMode("base64");

    CkJsonObject json = new CkJsonObject();
    json.Load(data);
    System.out.println("json = " + json.emit());

    String sig = crypt.macStringENC(json.emit());

    CkStringBuilder sbUrl = new CkStringBuilder();
    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"));

    System.out.println("Signed URL: " + sbUrl.getAsString());
  }
}