Unicode C

Create more Complex JSON Document

See more JSON Examples

Sample code to create the following JSON document:

    {  
        "Title": "The Cuckoo's Calling",  
        "Author": "Robert Galbraith",  
        "Genre": "classic crime novel",  
        "Detail": {  
            "Publisher": "Little Brown",  
            "Publication_Year": 2013,  
            "ISBN-13": 9781408704004,  
            "Language": "English",  
            "Pages": 494  
        },  
        "Price": [  
            {  
                "type": "Hardcover",  
                "price": 16.65  
            },  
            {  
                "type": "Kindle Edition",  
                "price": 7.00  
            }  
        ]  
    }  

Unicode C

#include <C_CkJsonObjectW.h>
#include <C_CkJsonArrayW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJsonObjectW json;
    int index;
    HCkJsonObjectW detail;
    HCkJsonArrayW aPrice;
    HCkJsonObjectW priceObj;

    success = FALSE;

    json = CkJsonObjectW_Create();

    // The only reason for failure in the following lines of code would be an out-of-memory condition..

    // An index value of -1 is used to append at the end.
    index = -1;

    success = CkJsonObjectW_AddStringAt(json,-1,L"Title",L"The Cuckoo's Calling");
    success = CkJsonObjectW_AddStringAt(json,-1,L"Author",L"Robert Galbraith");
    success = CkJsonObjectW_AddStringAt(json,-1,L"Genre",L"classic crime novel");

    // Let's create the Detail JSON object:
    detail = CkJsonObjectW_Create();
    CkJsonObjectW_AppendObject2(json,L"Detail",detail);

    success = CkJsonObjectW_AddStringAt(detail,-1,L"Publisher",L"Little Brown");
    success = CkJsonObjectW_AddIntAt(detail,-1,L"Publication_Year",2013);
    success = CkJsonObjectW_AddNumberAt(detail,-1,L"ISBN-13",L"9781408704004");
    success = CkJsonObjectW_AddStringAt(detail,-1,L"Language",L"English");
    success = CkJsonObjectW_AddIntAt(detail,-1,L"Pages",494);

    // Add the array for Price
    aPrice = CkJsonArrayW_Create();
    CkJsonObjectW_AppendArray2(json,L"Price",aPrice);

    // Entry in aPrice will be a JSON object.

    // Append a new/empty ojbect to the end of the aPrice array.
    priceObj = CkJsonObjectW_Create();

    CkJsonArrayW_AddObjectAt2(aPrice,-1,priceObj);
    success = CkJsonObjectW_AddStringAt(priceObj,-1,L"type",L"Hardcover");
    success = CkJsonObjectW_AddNumberAt(priceObj,-1,L"price",L"16.65");

    CkJsonArrayW_AddObjectAt2(aPrice,-1,priceObj);
    success = CkJsonObjectW_AddStringAt(priceObj,-1,L"type",L"Kindle Edition");
    success = CkJsonObjectW_AddNumberAt(priceObj,-1,L"price",L"7.00");

    CkJsonObjectW_putEmitCompact(json,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(json));


    CkJsonObjectW_Dispose(json);
    CkJsonObjectW_Dispose(detail);
    CkJsonArrayW_Dispose(aPrice);
    CkJsonObjectW_Dispose(priceObj);

    }