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(C) Create more Complex JSON DocumentSample 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 } ] }
#include <C_CkJsonObject.h> #include <C_CkJsonArray.h> void ChilkatSample(void) { HCkJsonObject json; BOOL success; int index; HCkJsonObject detail; HCkJsonArray aPrice; HCkJsonObject priceObj; json = CkJsonObject_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 = CkJsonObject_AddStringAt(json,-1,"Title","The Cuckoo's Calling"); success = CkJsonObject_AddStringAt(json,-1,"Author","Robert Galbraith"); success = CkJsonObject_AddStringAt(json,-1,"Genre","classic crime novel"); // Let's create the Detail JSON object: success = CkJsonObject_AddObjectAt(json,-1,"Detail"); detail = CkJsonObject_ObjectAt(json,CkJsonObject_getSize(json) - 1); success = CkJsonObject_AddStringAt(detail,-1,"Publisher","Little Brown"); success = CkJsonObject_AddIntAt(detail,-1,"Publication_Year",2013); success = CkJsonObject_AddNumberAt(detail,-1,"ISBN-13","9781408704004"); success = CkJsonObject_AddStringAt(detail,-1,"Language","English"); success = CkJsonObject_AddIntAt(detail,-1,"Pages",494); CkJsonObject_Dispose(detail); // Add the array for Price success = CkJsonObject_AddArrayAt(json,-1,"Price"); aPrice = CkJsonObject_ArrayAt(json,CkJsonObject_getSize(json) - 1); // Entry entry in aPrice will be a JSON object. // Append a new/empty ojbect to the end of the aPrice array. success = CkJsonArray_AddObjectAt(aPrice,-1); // Get the object that was just appended. priceObj = CkJsonArray_ObjectAt(aPrice,CkJsonArray_getSize(aPrice) - 1); success = CkJsonObject_AddStringAt(priceObj,-1,"type","Hardcover"); success = CkJsonObject_AddNumberAt(priceObj,-1,"price","16.65"); CkJsonObject_Dispose(priceObj); success = CkJsonArray_AddObjectAt(aPrice,-1); priceObj = CkJsonArray_ObjectAt(aPrice,CkJsonArray_getSize(aPrice) - 1); success = CkJsonObject_AddStringAt(priceObj,-1,"type","Kindle Edition"); success = CkJsonObject_AddNumberAt(priceObj,-1,"price","7.00"); CkJsonObject_Dispose(priceObj); CkJsonArray_Dispose(aPrice); CkJsonObject_putEmitCompact(json,FALSE); printf("%s\n",CkJsonObject_emit(json)); CkJsonObject_Dispose(json); } |
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