(Delphi ActiveX) SharePoint -- Rename Folder

This example shows how to rename SharePoint folder.

Renaming a folder is not straightforward. Apparently, the information published by Microsoft is incorrect and simply doesn't work (the information about how to update a folder by using the MERGE method is incorrect).

To rename a folder requires two steps, as demonstrated by this example.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
sAllFields: WideString;
json: TChilkatJsonObject;
sbPath: TChilkatStringBuilder;
req: TChilkatHttpRequest;
jsonBody: TChilkatJsonObject;
bUseTls: Integer;
resp: IChilkatHttpResponse;

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

http := TChilkatHttp.Create(Self);

// If SharePoint Windows classic authentication is used, then set the 
// Login, Password, LoginDomain, and NtlmAuth properties.
http.Login := 'SHAREPOINT_USERNAME';
http.Password := 'SHAREPOINT_PASSWORD';
http.LoginDomain := 'SHAREPOINT_NTLM_DOMAIN';
http.NtlmAuth := 1;

// 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

// The first step in renaming a file is send a GET to the /ListItemAllFields endpoint:
// Indicate we want a JSON response.
http.SetRequestHeader('Accept','application/json;odata=verbose');

// In this example, we want to rename the folder "/Documents/ChilkatTest" to "/Documents/ChilkatTest2"
// If your Sharepoint site is within a site collection, then use "https://SHAREPOINT_HTTPS_DOMAIN/sites/teamA/_api/web/GetFolderByServerRelativeUrl('/sites/teamA/Documents/ChilkatTest')/ListItemAllFields" where "teamA" is the name of the site.
sAllFields := http.QuickGetStr('https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFolderByServerRelativeUrl(''/Documents/ChilkatTest'')/ListItemAllFields');
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

json := TChilkatJsonObject.Create(Self);
json.Load(sAllFields);
json.EmitCompact := 0;

Memo1.Lines.Add(json.Emit());

// The JSON response will look like this:
// We'll need to get the "id", "etag", and "type" for the next step.  The "id" for the
// sample below is "Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)"

// 
// { 
//   "d": { 
//     "__metadata": { 
//       "id": "Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)",
//       "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)",
//       "etag": "\"4\"",
//       "type": "SP.Data.DocumentsItem"
//     },
//     ...
//     ...
//     "FileSystemObjectType": 1,
//     "Id": 62,
//     "ContentTypeId": "0x012000FA905915D7D8F7458C1A0AF1E981BFF5",
//     "Title": "ChilkatTest",
//     "OData__dlc_DocId": null,
//     "OData__dlc_DocIdUrl": null,
//     "URL": null,
//     "DocumentSetDescription": null,
//     "EditorId": 25,
//     "ID": 62,
//     "Created": "2017-04-12T19:18:29",
//     "AuthorId": 25,
//     "Modified": "2017-04-12T19:49:15",
//     "OData__CopySource": null,
//     "CheckoutUserId": null,
//     "OData__UIVersionString": "1.0",
//     "GUID": "71f30f44-e33a-48e7-b4d8-9d619ba1ad69"
//   }
// }

// -------------------------------------------------------------------------------
// Step 2...

// To rename a folder, we're going to POST to
// https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)
// with a request body containing the following JSON:
// 
//     { "__metadata": { "type": "THE_TYPE_FROM_ABOVE" }, "Title": "New title", "FileLeafRef": "New title"}
// 

// Build the Path, which is "/_api/" + the id from above.
sbPath := TChilkatStringBuilder.Create(Self);
sbPath.Append('/_api/');
sbPath.Append(json.StringOf('d.__metadata.id'));

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.Path := sbPath.GetAsString();

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

// Set the Content-Type, and indicate that a JSON response is desired.
req.ContentType := 'application/json;odata=verbose';
req.AddHeader('Accept','application/json;odata=verbose');

// We need a few more headers...
req.AddHeader('IF-MATCH',json.StringOf('d.__metadata.etag'));
req.AddHeader('X-HTTP-Method','MERGE');

// Create and add the JSON body.
jsonBody := TChilkatJsonObject.Create(Self);
jsonBody.UpdateString('__metadata.type',json.StringOf('d.__metadata.type'));
jsonBody.UpdateString('Title','ChilkatTest2');
jsonBody.UpdateString('FileLeafRef','ChilkatTest2');
req.LoadBodyFromString(jsonBody.Emit(),'utf-8');

// Send the POST using HTTPS.
bUseTls := 1;
resp := http.SynchronousRequest('SHAREPOINT_HTTPS_DOMAIN',443,bUseTls,req.ControlInterface);
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// The response body contains JSON.
// When successful, it will be empty.
json.Load(resp.BodyStr);
json.EmitCompact := 0;

Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));

// The expected success response code is 204.
if (resp.StatusCode <> 204) then
  begin
    Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));
    Memo1.Lines.Add(json.Emit());
    Memo1.Lines.Add('Failed');

    Exit;
  end;

// The response body is empty for a 204 (success) response...
Memo1.Lines.Add('Success.');
end;