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(Unicode C) ChartURL - Create a Signed URLDemonstrates how to create a signed URL for ChartURL.
#include <C_CkCrypt2W.h> #include <C_CkJsonObjectW.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *key; const wchar_t *token; const wchar_t *slug; const wchar_t *data; HCkJsonObjectW json; const wchar_t *sig; HCkStringBuilderW sbUrl; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. crypt = CkCrypt2W_Create(); // Example key: "dek-d7a46236eda961a6c3c18ffcc6b077ba87d27e9ae85f7842c6d427c265dd5f69d5131308d93332353d4a55a4b1160fcf516515a4a9f0aa50fbf2d7a2e7d0f1c5" key = L"charturl-sign-encrypt-key"; // Example token: "dt-RwYN" token = L"charturl-token"; slug = L"weekly-activity"; data = L"{ \"options\": {\"data\": {\"columns\": [[\"This Week\",10,13],[\"Last Week\",9,5]]}}}"; CkCrypt2W_putHashAlgorithm(crypt,L"SHA256"); CkCrypt2W_putMacAlgorithm(crypt,L"HMAC"); CkCrypt2W_SetMacKeyString(crypt,key); CkCrypt2W_putEncodingMode(crypt,L"base64"); json = CkJsonObjectW_Create(); CkJsonObjectW_Load(json,data); wprintf(L"json = %s\n",CkJsonObjectW_emit(json)); sig = CkCrypt2W_macStringENC(crypt,CkJsonObjectW_emit(json)); sbUrl = CkStringBuilderW_Create(); CkStringBuilderW_Append(sbUrl,L"https://charturl.com/i/"); CkStringBuilderW_Append(sbUrl,token); CkStringBuilderW_Append(sbUrl,L"/"); CkStringBuilderW_Append(sbUrl,slug); CkStringBuilderW_Append(sbUrl,L"?d="); CkStringBuilderW_Append(sbUrl,CkCrypt2W_encodeString(crypt,CkJsonObjectW_emit(json),L"utf-8",L"url")); CkStringBuilderW_Append(sbUrl,L"&s="); CkStringBuilderW_Append(sbUrl,CkCrypt2W_encodeString(crypt,sig,L"utf-8",L"url")); wprintf(L"Signed URL: %s\n",CkStringBuilderW_getAsString(sbUrl)); CkCrypt2W_Dispose(crypt); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbUrl); } |
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