Sample code for 30+ languages & platforms
C

HTTP PUT JSON

See more HTTP Examples

Demonstrates how to send a JSON PUT and get the JSON response body.

Chilkat C Downloads

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpRequest req;
    HCkHttp http;
    const char *jsonText;
    HCkHttpResponse resp;

    success = FALSE;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    req = CkHttpRequest_Create();
    http = CkHttp_Create();

    // The PUT request to be sent will look like this:

    // PUT /request HTTP/1.1
    // Content-Type: application/jsonrequest
    // Cookie: JSESSIONID=1234
    // Content-Encoding: identity
    // Host: json.penzance.org
    // Accept: application/jsonrequest
    // Accept-Encoding:
    // Content-Length: 72
    // 
    // {"user":"doctoravatar@penzance.com","forecast":7,"t":"vlIj","zip":94089}

    // First, remove default header fields that would be automatically
    // sent.  (These headers are harmless, and shouldn't need to 
    // be suppressed, but just in case...)
    CkHttp_putAcceptCharset(http,"");
    CkHttp_putUserAgent(http,"");
    CkHttp_putAcceptLanguage(http,"");

    // Suppress the Accept-Encoding header by disallowing 
    // a gzip response:
    CkHttp_putAllowGzip(http,FALSE);

    // If a Cookie needs to be added...
    CkHttp_SetRequestHeader(http,"Cookie","JSESSIONID=1234");

    // Add the Content-Encoding: identity header.
    CkHttp_SetRequestHeader(http,"Content-Encoding","identity");

    // Modify the default "Accept" header:
    CkHttp_putAccept(http,"application/jsonrequest");

    jsonText = "{\"user\":\"doctoravatar@penzance.com\",\"forecast\":7,\"t\":\"vlIj\",\"zip\":94089}";

    // IMPORTANT: Make sure to change the URL, JSON text,
    // and other data items to your own values.  The URL used
    // in this example will not actually work.

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpStr(http,"PUT","http://json.penzance.org/request",jsonText,"utf-8","application/jsonrequest",resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttpRequest_Dispose(req);
        CkHttp_Dispose(http);
        CkHttpResponse_Dispose(resp);
        return;
    }

    printf("Response status code: %d\n",CkHttpResponse_getStatusCode(resp));
    printf("Response JSON:\n");
    printf("%s\n",CkHttpResponse_bodyStr(resp));


    CkHttpRequest_Dispose(req);
    CkHttp_Dispose(http);
    CkHttpResponse_Dispose(resp);

    }