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C

Load JSON Object from HTTP Response Body

Demonstrates how to load the HTTP response body directly into a JSON object.

Chilkat C Downloads

C
#include <C_CkHttp.h>
#include <C_CkHttpResponse.h>
#include <C_CkJsonObject.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttp http;
    HCkHttpResponse resp;
    HCkJsonObject json;

    success = FALSE;

    http = CkHttp_Create();

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpStr(http,"GET","https://www.chilkatsoft.com/exampledata/sample.json","","","",resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkHttpResponse_Dispose(resp);
        return;
    }

    //  A JSON object is JSON that begins with "{" and ends with "}"
    json = CkJsonObject_Create();

    //  If we wish to transfer (instead of copy) the JSON from the HttpResponse to the JsonObject, then add the keyword "TakeResponseBody" to UncommonOptions
    //  This could save memory for extremely large JSON responses.
    CkHttpResponse_putUncommonOptions(resp,"TakeResponseBody");

    CkHttpResponse_GetBodyJson(resp,json);

    CkJsonObject_putEmitCompact(json,FALSE);
    printf("%s\n",CkJsonObject_emit(json));

    //  Note: If UncommonOptions contained "TakeResponseBody", then the response BodyStr will now be empty:
    printf("----\n");
    printf("%s\n",CkHttpResponse_bodyStr(resp));


    CkHttp_Dispose(http);
    CkHttpResponse_Dispose(resp);
    CkJsonObject_Dispose(json);

    }