(MFC) HTTP POST JSON (application/json)

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

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttpRequest.h>
#include <CkHttp.h>
#include <CkHttpResponse.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkHttpRequest req;
    CkHttp http;

    // 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...
    http.SetRequestHeader("Authorization","my-custom-computed-auth-value");

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

    // We don't need to set the Content-Type header, becaue it is automatically set by Chilkat
    // in the PostJson2 call below.

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

    const char *jsonText = "{ some JSON text ... }";

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

    CkHttpResponse *resp = 0;
    resp = http.PostJson2("http://www.someserver.com/someJsonEndpoint","application/json",jsonText);
    if (http.get_LastMethodSuccess() != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
    }
    else {
        // Display the JSON response.
        strOut.append(resp->bodyStr());
        strOut.append("\r\n");
        delete resp;
    }



    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }