(C) multipart/form-data HTTP POST

Demonstrates how to construct and send a multipart/form-data HTTP POST.

For more information, see https://chilkatsoft.com/http_multipart_form_data_post.asp

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

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

void ChilkatSample(void)
    {
    HCkHttpRequest req;
    HCkBinData bd;
    BOOL success;
    HCkHttp http;
    HCkHttpResponse resp;

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

    // Sends the following multipart/form-data POST:

    // POST /xyz/something HTTP/1.1
    // Host: domain
    // Content-Type: multipart/form-data; boundary=------------090708030009010000030901
    // Content-Length: 2220
    // 
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="param1"
    // 
    // value1
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="param2"
    // 
    // value2
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="starfish20"; filename="starfish20.jpg"
    // Content-Type: image/jpeg
    // 
    // JPEG DATA HERE...
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="helloWorld"; filename="helloWorld.pdf"
    // Content-Type: application/pdf
    // 
    // PDF DATA HERE...
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="tinyA"; filename="tinyA.xml"
    // Content-Type: text/xml
    // 
    // XML DATA HERE...
    // --------------090708030009010000030901--
    // 

    req = CkHttpRequest_Create();
    CkHttpRequest_putHttpVerb(req,"POST");
    CkHttpRequest_putContentType(req,"multipart/form-data");
    CkHttpRequest_putPath(req,"/xyz/something");

    CkHttpRequest_AddParam(req,"param1","value1");
    CkHttpRequest_AddParam(req,"param2","value2");

    // Add some small files to the request. (Small so we can see what the full request looks like without too much data..)
    bd = CkBinData_Create();
    success = CkBinData_LoadFile(bd,"qa_data/jpg/starfish20.jpg");
    CkHttpRequest_AddBdForUpload(req,"starfish20","starfish20.jpg",bd,"image/jpeg");

    success = CkBinData_LoadFile(bd,"qa_data/pdf/helloWorld.pdf");
    CkHttpRequest_AddBdForUpload(req,"helloWorld","helloWorld.pdf",bd,"application/pdf");

    success = CkBinData_LoadFile(bd,"qa_data/xml/tinyA.xml");
    CkHttpRequest_AddBdForUpload(req,"tinyA","tinyA.xml",bd,"text/xml");

    http = CkHttp_Create();

    resp = CkHttp_SynchronousRequest(http,"example.com",443,TRUE,req);
    if (CkHttp_getLastMethodSuccess(http) != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttpRequest_Dispose(req);
        CkBinData_Dispose(bd);
        CkHttp_Dispose(http);
        return;
    }

    printf("HTTP response status: %d\n",CkHttpResponse_getStatusCode(resp));

    printf("Received:\n");
    printf("%s\n",CkHttpResponse_bodyStr(resp));

    CkHttpResponse_Dispose(resp);


    CkHttpRequest_Dispose(req);
    CkBinData_Dispose(bd);
    CkHttp_Dispose(http);

    }