(Unicode C) SharePoint -- Update the Contents of a File (PUT)

Demonstrates how to update the contents of a SharePoint file.

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#include <C_CkHttpW.h>
#include <C_CkHttpRequestW.h>
#include <C_CkHttpResponseW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    HCkHttpRequestW req;
    BOOL bUseTls;
    HCkHttpResponseW resp;
    HCkJsonObjectW json;

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

    http = CkHttpW_Create();

    //  If SharePoint Windows classic authentication is used, then set the
    //  Login, Password, LoginDomain, and NtlmAuth properties.
    CkHttpW_putLogin(http,L"SHAREPOINT_USERNAME");
    CkHttpW_putPassword(http,L"SHAREPOINT_PASSWORD");
    CkHttpW_putLoginDomain(http,L"SHAREPOINT_NTLM_DOMAIN");
    CkHttpW_putNtlmAuth(http,TRUE);

    //  The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
    //  If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
    //  establish the cookie as shown at SharePoint Online Authentication

    //  Indicate that we want a JSON reply
    CkHttpW_putAccept(http,L"application/json;odata=verbose");

    //  Update /Documents/ChilkatTest/sample.docx with new content...
    req = CkHttpRequestW_Create();
    CkHttpRequestW_putHttpVerb(req,L"POST");
    CkHttpRequestW_putPath(req,L"/_api/web/GetFileByServerRelativeUrl('/Documents/ChilkatTest/sample.docx')/$value");
    //  Give the location of the file to be uploaded.
    //  Note: The file is not loaded into memory at this point.  It is never fully loaded
    //  into memory.  Instead, the file data is streamed directly from the file when
    //  when the upload occurs.
    CkHttpRequestW_StreamBodyFromFile(req,L"qa_data/msword/sample.docx");

    //  We need to add a form digest value in the X-RequestDigest header field.
    //  See this example for details on
    //  how to get (and cache) a form digest value
    CkHttpRequestW_AddHeader(req,L"X-RequestDigest",L"SHAREPOINT_FORM_DIGEST");

    //  Also need to add this header..
    CkHttpRequestW_AddHeader(req,L"X-HTTP-Method",L"PUT");

    //  Upload..
    bUseTls = TRUE;
    resp = CkHttpW_SynchronousRequest(http,L"SHAREPOINT_HTTPS_DOMAIN",443,bUseTls,req);
    if (CkHttpW_getLastMethodSuccess(http) != TRUE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkHttpRequestW_Dispose(req);
        return;
    }

    //  A successful update will return a 204 status code with an empty body.
    //  A non-successful update will return a JSON response body..
    if (CkHttpResponseW_getStatusCode(resp) != 204) {
        wprintf(L"Response status code = %d\n",CkHttpResponseW_getStatusCode(resp));
        json = CkJsonObjectW_Create();
        CkJsonObjectW_Load(json,CkHttpResponseW_bodyStr(resp));
        CkJsonObjectW_putEmitCompact(json,FALSE);
        wprintf(L"%s\n",CkJsonObjectW_emit(json));
        wprintf(L"Failed\n");
        CkHttpResponseW_Dispose(resp);
        CkHttpW_Dispose(http);
        CkHttpRequestW_Dispose(req);
        CkJsonObjectW_Dispose(json);
        return;
    }

    CkHttpResponseW_Dispose(resp);

    wprintf(L"Success.\n");


    CkHttpW_Dispose(http);
    CkHttpRequestW_Dispose(req);
    CkJsonObjectW_Dispose(json);

    }