Delphi DLL

SharePoint -- Delete a Folder

Demonstrates how to delete a SharePoint folder. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, HttpRequest, Xml, HttpResponse;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
http: HCkHttp;
req: HCkHttpRequest;
bUseTls: Boolean;
resp: HCkHttpResponse;
xml: HCkXml;

begin
success := False;

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

http := CkHttp_Create();

// If SharePoint Windows classic authentication is used, then set the 
// Login, Password, LoginDomain, and NtlmAuth properties.
CkHttp_putLogin(http,'SHAREPOINT_USERNAME');
CkHttp_putPassword(http,'SHAREPOINT_PASSWORD');
CkHttp_putLoginDomain(http,'SHAREPOINT_NTLM_DOMAIN');
CkHttp_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

// This example will delete the folder /Documents/ChilkatTest2

req := CkHttpRequest_Create();
CkHttpRequest_putHttpVerb(req,'POST');
// If your Sharepoint site is within a site collection, then use "/sites/teamA/_api/web/GetFolderByServerRelativeUrl('/sites/teamA/Documents/ChilkatTest2')" where "teamA" is the name of the site.
CkHttpRequest_putPath(req,'/_api/web/GetFolderByServerRelativeUrl(''/Documents/ChilkatTest2'')');

// 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
CkHttpRequest_AddHeader(req,'X-RequestDigest','SHAREPOINT_FORM_DIGEST');

// Add additional required headers.
CkHttpRequest_AddHeader(req,'IF-MATCH','*');
CkHttpRequest_AddHeader(req,'X-HTTP-Method','DELETE');

// Send the POST using https (TLS). (Port 443 is the default port for https.)
bUseTls := True;
resp := CkHttpResponse_Create();
success := CkHttp_HttpSReq(http,'SHAREPOINT_HTTPS_DOMAIN',443,bUseTls,req,resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// If failed, the response body contains XML 
xml := CkXml_Create();
CkXml_LoadXml(xml,CkHttpResponse__bodyStr(resp));

// Note: It seems that if an attempt is made to delete a folder that does not exist,
// the response status code is 200, indicating success.
if (CkHttpResponse_getStatusCode(resp) <> 200) then
  begin
    Memo1.Lines.Add('Response status code = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));
    Memo1.Lines.Add(CkXml__getXml(xml));
    Memo1.Lines.Add('Failed');
    Exit;
  end;

// If successful, the response body is empty.
Memo1.Lines.Add('Success.');

CkHttp_Dispose(http);
CkHttpRequest_Dispose(req);
CkHttpResponse_Dispose(resp);
CkXml_Dispose(xml);

end;