(Delphi DLL) OneDrive -- Create a New Folder

See more OneDrive Examples

Note: This example requires Chilkat v9.5.0.97 or greater.

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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
http: HCkHttp;
respStr: PWideChar;
jsonReqBody: HCkJsonObject;
jObj: HCkJsonObject;
url: PWideChar;
resp: HCkHttpResponse;

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

// This example uses the OAuth client credentials flow.
// See How to Create an Azure App Registration for OAuth 2.0 Client Credentials

// Use your client ID, client secret, and tenant ID in the following lines
json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'client_id','2871da2c-8176-4b7f-869b-2311aa82e743');
CkJsonObject_UpdateString(json,'client_secret','2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH');
CkJsonObject_UpdateString(json,'scope','https://graph.microsoft.com/.default');
CkJsonObject_UpdateString(json,'token_endpoint','https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token');

http := CkHttp_Create();
CkHttp_putAuthToken(http,CkJsonObject__emit(json));

// To create a new folder, send a POST request like this:
// POST /users/{user-id}/drive/items/{parent-item-id}/children

// We first need to get the item-id for the folder where the new folder will be created.
// This example will create a new folder named "abc" within /TestDir,
// so we need the item-id for /TestDir.
CkHttp_SetUrlVar(http,'dir_path','/TestDir');
CkHttp_SetUrlVar(http,'user_id','4fe732c3-322e-4a6b-b729-2fd1eb5c6104');
respStr := CkHttp__quickGetStr(http,'https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:{$dir_path}');
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;
CkJsonObject_Load(json,respStr);
if (CkHttp_getLastStatus(http) <> 200) then
  begin
    Memo1.Lines.Add('Failed to get parent folder item id, status code = ' + IntToStr(CkHttp_getLastStatus(http)));
    Exit;
  end;

// The HTTP request body should contain JSON like this:

// 	{
// 	  "name": "abc",
// 	  "folder": { }
// 	}

jsonReqBody := CkJsonObject_Create();
CkJsonObject_AppendString(jsonReqBody,'name','abc');
jObj := CkJsonObject_AppendObject(jsonReqBody,'folder');
CkJsonObject_Dispose(jObj);
Memo1.Lines.Add('JSON body:');
Memo1.Lines.Add(CkJsonObject__emit(jsonReqBody));

// Set the URL var for the next request which will create the new folder.
CkHttp_SetUrlVar(http,'parent_item_id',CkJsonObject__stringOf(json,'id'));

url := 'https://graph.microsoft.com/v1.0/users/{$user_id}/drive/items/{$parent_item_id}/children';
resp := CkHttp_PostJson2(http,url,'application/json',CkJsonObject__emit(jsonReqBody));
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

CkJsonObject_Load(json,CkHttpResponse__bodyStr(resp));
Memo1.Lines.Add('Response:');
Memo1.Lines.Add(CkJsonObject__emit(json));

// A 201 response indicates success.
if (CkHttpResponse_getStatusCode(resp) <> 201) then
  begin
    Memo1.Lines.Add('Failed to create folder.');
    Memo1.Lines.Add('Response status code = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));
  end
else
  begin
    Memo1.Lines.Add('Successfully created folder.');
  end;
CkHttpResponse_Dispose(resp);

// A successful response:

// 	{
// 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/drive/items('3A33FCEB9B74CC15%214862')/children/$entity",
// 	  "createdBy": {
// 	    "application": {
// 	      "displayName": "Chilkat",
// 	      "id": "441c9990"
// 	    },
// 	    "user": {
// 	      "displayName": "Matt Smith",
// 	      "id": "3a33fceb9b74cc15"
// 	    }
// 	  },
// 	  "createdDateTime": "2017-06-04T16:02:22.203Z",
// 	  "cTag": "adDozQTMzRkNFQjlCNzRDQzE1ITQ4NzAuNjM2MzIxODg5NDIyMDMwMDAw",
// 	  "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODcwLjA",
// 	  "id": "3A33FCEB9B74CC15!4870",
// 	  "lastModifiedBy": {
// 	    "application": {
// 	      "displayName": "Chilkat",
// 	      "id": "441c9990"
// 	    },
// 	    "user": {
// 	      "displayName": "Matt Smith",
// 	      "id": "3a33fceb9b74cc15"
// 	    }
// 	  },
// 	  "lastModifiedDateTime": "2017-06-04T16:02:22.203Z",
// 	  "name": "abc",
// 	  "parentReference": {
// 	    "driveId": "3a33fceb9b74cc15",
// 	    "id": "3A33FCEB9B74CC15!4862",
// 	    "name": "someFolder",
// 	    "path": "/drive/root:/someFolder"
// 	  },
// 	  "size": 0,
// 	  "webUrl": "https://1drv.ms/f/s!ABXMdJvr_DM6pgY",
// 	  "fileSystemInfo": {
// 	    "createdDateTime": "2017-06-04T16:02:22.203Z",
// 	    "lastModifiedDateTime": "2017-06-04T16:02:22.203Z"
// 	  },
// 	  "folder": {
// 	    "childCount": 0
// 	  }
// 	}
// 
// 	Successfully created folder.

CkJsonObject_Dispose(json);
CkHttp_Dispose(http);
CkJsonObject_Dispose(jsonReqBody);

end;