(Delphi ActiveX) Outlook -- List Mail Folders

See more Outlook Examples

Uses the Microsoft Graph API to list Outlook mail folders.

Note: This example requires Chilkat v9.5.0.67 or greater.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

For more information, see https://docs.microsoft.com/en-us/graph/api/user-list-mailfolders?view=graph-rest-1.0&tabs=http

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;
sbResponse: TChilkatStringBuilder;
success: Integer;
json: TChilkatJsonObject;
i: Integer;
numFolders: Integer;

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

http := TChilkatHttp.Create(Self);

// Use your previously obtained access token here:
// See the following examples for getting an access token:
//    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
//    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
//    Refresh Access Token (Azure AD v2.0 Endpoint).
//    Refresh Access Token (Azure AD Endpoint).

http.AuthToken := 'MICROSOFT_GRAPH_ACCESS_TOKEN';

sbResponse := TChilkatStringBuilder.Create(Self);

// Sends:  GET /users/{id | userPrincipalName}/mailFolders
// Note: It is also possible to use the literal string "me" for the current logged-on user.
// For example: GET /me/mailFolders
http.ClearUrlVars();
http.SetUrlVar('userPrincipalName','chilkatsoft@outlook.com');
success := http.QuickGetSb('https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/mailFolders',sbResponse.ControlInterface);
if ((success <> 1) and (http.LastStatus = 0)) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

json := TChilkatJsonObject.Create(Self);
json.LoadSb(sbResponse.ControlInterface);
json.EmitCompact := 0;

Memo1.Lines.Add('Status code = ' + IntToStr(http.LastStatus));
if (http.LastStatus <> 200) then
  begin
    Memo1.Lines.Add(json.Emit());
    Memo1.Lines.Add('Failed.');
  end;

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

// In my test case, this is the result (see below)
// Apparently, this lists folders without listing subfolders (aka child folders)
// There's another REST API call to list child folders.

// To iterate over the folders:
i := 0;
numFolders := json.SizeOfArray('value');
while i < numFolders do
  begin
    json.I := i;
    Memo1.Lines.Add(json.StringOf('value[i].displayName'));
    i := i + 1;
  end;

// The output from the above loop:

// 	Archive
// 	Deleted Items
// 	Drafts
// 	Inbox
// 	Junk Email
// 	Outbox
// 	Sent Items

// ------------------------------------------------------------------------------------
// The raw JSON response: 

// {
//   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('chilkatsoft%40outlook.com')/mailFolders",
//   "value": [
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAG8XunwAAAA=",
//       "displayName": "Archive",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 0,
//       "unreadItemCount": 0,
//       "totalItemCount": 0
//     },
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEKAAAA",
//       "displayName": "Deleted Items",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 0,
//       "unreadItemCount": 0,
//       "totalItemCount": 0
//     },
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA",
//       "displayName": "Drafts",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 0,
//       "unreadItemCount": 0,
//       "totalItemCount": 0
//     },
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA",
//       "displayName": "Inbox",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 2,
//       "unreadItemCount": 0,
//       "totalItemCount": 4
//     },
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEiAAAA",
//       "displayName": "Junk Email",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 0,
//       "unreadItemCount": 0,
//       "totalItemCount": 0
//     },
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgELAAAA",
//       "displayName": "Outbox",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 0,
//       "unreadItemCount": 0,
//       "totalItemCount": 0
//     },
//     {
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEJAAAA",
//       "displayName": "Sent Items",
//       "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEIAAAA",
//       "childFolderCount": 0,
//       "unreadItemCount": 0,
//       "totalItemCount": 14
//     }
//   ]
// }
// 

// ------------------------------------------------------------------------------------------------------
// This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com
// 
// The Microsoft Graph Outlook Mail API lets you read, create, and send messages and attachments, 
// view and respond to event messages, and manage folders that are secured by Azure Active Directory 
// in Office 365. It also provides the same functionality in Microsoft accounts specifically 
// in these domains: Hotmail.com, Live.com, MSN.com, Outlook.com, and Passport.com.
end;