(Unicode C) Read/Write JSON with Binary Data such as JPEG Files

Demonstrates how binary files could be stored in JSON in base64 format. Creates JSON containing the contents of a JPG file, and then reads the JSON to extract the JPEG image.

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#include <C_CkBinDataW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkBinDataW bd;
    BOOL success;
    HCkJsonObjectW json1;
    const wchar_t *jsonStr;
    HCkJsonObjectW json2;
    HCkBinDataW bd2;

    // First load a small JPG file..
    bd = CkBinDataW_Create();

    success = CkBinDataW_LoadFile(bd,L"qa_data/jpg/starfish20.jpg");
    // Assume success, but your code should check for success..

    // Create JSON containing the binary data in base64 format.
    json1 = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateBd(json1,L"starfish",L"base64",bd);

    jsonStr = CkJsonObjectW_emit(json1);
    wprintf(L"%s\n",jsonStr);

    // Here's the output:
    // {"starfish":"/9j/4AAQSkZJRgA ... cN2iuLFsCEbDGxQkI6RO/n//2Q=="}

    // Let's create a new JSON object, load it with the above JSON, and extract the JPG image..
    json2 = CkJsonObjectW_Create();
    CkJsonObjectW_Load(json2,jsonStr);

    // Get the binary bytes.
    bd2 = CkBinDataW_Create();
    CkJsonObjectW_BytesOf(json2,L"starfish",L"base64",bd2);

    // Save to a file.
    success = CkBinDataW_WriteFile(bd2,L"qa_output/starfish20.jpg");

    wprintf(L"Success.\n");


    CkBinDataW_Dispose(bd);
    CkJsonObjectW_Dispose(json1);
    CkJsonObjectW_Dispose(json2);
    CkBinDataW_Dispose(bd2);

    }