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C

HTTP POST JSON (application/json)

See more HTTP Examples

Demonstrates how to send a JSON POST using the application/json content-type.

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

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

    // If any custom headers need to be included with the POST, add them
    // by calling SetRequestHeader

    // Note: An application should never explicitly set the Content-Length header.
    // The Content-Length is automatically computed and added by Chilkat.

    // Here are some examples of custom headers.  

    // Perhaps your particular app needs some sort of custom-computed Authorization header...
    CkHttp_SetRequestHeader(http,"Authorization","my-custom-computed-auth-value");

    // Another custom header for some hypothetical app:
    CkHttp_SetRequestHeader(http,"X-Pass-Timestamp","my-custom-computed-timestamp-value");

    // The following "Accept" header may be set, but it really isn't necessary:
    CkHttp_SetRequestHeader(http,"Accept","application/json");

    jsonText = "{ some JSON text ... }";

    // To use SSL/TLS, simply use "https://" in the URL.

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpStr(http,"POST","http://www.someserver.com/someJsonEndpoint",jsonText,"utf-8","application/json",resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttpRequest_Dispose(req);
        CkHttp_Dispose(http);
        CkHttpResponse_Dispose(resp);
        return;
    }

    // Display the JSON response.
    printf("%s\n",CkHttpResponse_bodyStr(resp));


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

    }