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C

Add Parameters to Multipart Form-Data POSTs

Parameters (name=value) can be added to multipart/form-data POSTs (such as for file uploads) by using the AddParam method. This example sends the following HTTP POST
POST /something HTTP/1.1
Content-Type: multipart/form-data; boundary=------------010201080703010401070605
Host: domain
Content-Length: 560

--------------010201080703010401070605
Content-Disposition: form-data; name="name"

Joe
--------------010201080703010401070605
Content-Disposition: form-data; name="age"

25
--------------010201080703010401070605
Content-Disposition: form-data; name="fileA"; filename="fileA.txt"
Content-Type: text/plain

This is the contents of file A
--------------010201080703010401070605
Content-Disposition: form-data; name="fileB"; filename="fileB.txt"
Content-Type: text/plain

This is the contents of file B
--------------010201080703010401070605--

Chilkat C Downloads

C
#include <C_CkHttpRequest.h>

void ChilkatSample(void)
    {
    HCkHttpRequest req;

    req = CkHttpRequest_Create();

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

    CkHttpRequest_AddParam(req,"name","Joe");
    CkHttpRequest_AddParam(req,"age","25");

    CkHttpRequest_AddStringForUpload(req,"fileA","fileA.txt","This is the contents of file A","utf-8");
    CkHttpRequest_AddStringForUpload(req,"fileB","fileB.txt","This is the contents of file B","utf-8");

    printf("%s\n",CkHttpRequest_generateRequestText(req));


    CkHttpRequest_Dispose(req);

    }