(Unicode C++) ChartURL - Create a Signed URL

Demonstrates how to create a signed URL for ChartURL.

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#include <CkCrypt2W.h>
#include <CkJsonObjectW.h>
#include <CkStringBuilderW.h>

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

    CkCrypt2W crypt;

    // Example key: "dek-d7a46236eda961a6c3c18ffcc6b077ba87d27e9ae85f7842c6d427c265dd5f69d5131308d93332353d4a55a4b1160fcf516515a4a9f0aa50fbf2d7a2e7d0f1c5"
    const wchar_t *key = L"charturl-sign-encrypt-key";
    // Example token: "dt-RwYN"
    const wchar_t *token = L"charturl-token";

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

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

    CkJsonObjectW json;
    json.Load(data);
    wprintf(L"json = %s\n",json.emit());

    const wchar_t *sig = crypt.macStringENC(json.emit());

    CkStringBuilderW sbUrl;
    sbUrl.Append(L"https://charturl.com/i/");
    sbUrl.Append(token);
    sbUrl.Append(L"/");
    sbUrl.Append(slug);
    sbUrl.Append(L"?d=");
    sbUrl.Append(crypt.encodeString(json.emit(),L"utf-8",L"url"));
    sbUrl.Append(L"&s=");
    sbUrl.Append(crypt.encodeString(sig,L"utf-8",L"url"));

    wprintf(L"Signed URL: %s\n",sbUrl.getAsString());
    }