(Unicode C++) SharePoint -- Delete a File

Demonstrates how to delete a SharePoint file.

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#include <CkHttpW.h>
#include <CkHttpRequestW.h>
#include <CkHttpResponseW.h>
#include <CkXmlW.h>

void ChilkatSample(void)
    {
    //  This requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkHttpW http;

    //  If SharePoint Windows classic authentication is used, then set the
    //  Login, Password, LoginDomain, and NtlmAuth properties.
    http.put_Login(L"SHAREPOINT_USERNAME");
    http.put_Password(L"SHAREPOINT_PASSWORD");
    http.put_LoginDomain(L"SHAREPOINT_NTLM_DOMAIN");
    http.put_NtlmAuth(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

    //  This example will delete the file named "penguins2.jpg"
    //  which is located in the "/Documents" folder.

    CkHttpRequestW req;
    req.put_HttpVerb(L"POST");
    req.put_Path(L"/_api/web/GetFileByServerRelativeUrl('/Documents/penguins2.jpg')");

    //  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
    req.AddHeader(L"X-RequestDigest",L"SHAREPOINT_FORM_DIGEST");

    //  Add additional required headers.
    req.AddHeader(L"IF-MATCH",L"*");
    req.AddHeader(L"X-HTTP-Method",L"DELETE");

    //  Send the POST using https (TLS). Port 443 is the default port for https.
    bool bUseTls = true;
    CkHttpResponseW *resp = http.SynchronousRequest(L"SHAREPOINT_HTTPS_DOMAIN",443,bUseTls,req);
    if (http.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    //  If failed, the response body contains XML
    CkXmlW xml;
    xml.LoadXml(resp->bodyStr());

    if (resp->get_StatusCode() != 200) {
        wprintf(L"Response status code = %d\n",resp->get_StatusCode());
        wprintf(L"%s\n",xml.getXml());

        //  For example, if the file did not exist, this would be the XML response:
        //  <?xml version="1.0" encoding="utf-8" ?>
        //  <m:error xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
        //      <m:code>-2146232832, Microsoft.SharePoint.SPException</m:code>
        //      <m:message xml:lang="en-US">The file /Documents/penguins2.jpg does not exist.</m:message>
        //  </m:error>
        // 

        wprintf(L"Failed\n");
        delete resp;
        return;
    }

    delete resp;

    //  If successful, the response body is empty.
    wprintf(L"Success.\n");
    }