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Pascal (Lazarus/Delphi)

Outlook -- List Messages in a Specified Folder

See more Outlook Examples

Demonstrates how to list the messages in a particular Outlook mailbox folder.

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

Chilkat Pascal (Lazarus/Delphi) Downloads

Pascal (Lazarus/Delphi)
program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.StringBuilder,
  Chilkat.Hashtable,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  sbResponse: TStringBuilder;
  htFolderMap: THashtable;
  sbMap: TStringBuilder;
  folderId: string;
  json: TJsonObject;
  i: Integer;
  numMessages: Integer;
  messageId: string;
  numRecipients: Integer;
  j: Integer;
  bodyContent: string;

begin
  success := False;

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

  http := THttp.Create;

  //  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 := TStringBuilder.Create;

  //  Sends:  GET /users/{user_id | userPrincipalName}/mailFolders/{folder_id}/messages
  //  Note: It is also possible to use the literal string "me" for the current logged-on user.
  //  For example: GET /me/mailFolders/{folder_id}/messages

  http.ClearUrlVars();
  http.SetUrlVar('userPrincipalName','chilkatsoft@outlook.com');

  //  In this example, we'd like to get the messages in the folder "/Inbox/abc",
  //  but we must specify the corresponding folder_id.  The best way to do this is to create
  //  a local map of folderPaths-to-folderIds.
  //  This example does it:  Create Outlook Folder Map)
  htFolderMap := THashtable.Create;
  sbMap := TStringBuilder.Create;
  sbMap.LoadFile('qa_data/outlook/folderMap.xml','utf-8');
  htFolderMap.AddFromXmlSb(sbMap);

  //  Get the ID for the "/Inbox/abc" folder:
  folderId := htFolderMap.LookupStr('/Inbox/abc');
  if (htFolderMap.LastMethodSuccess <> True) then
    begin
      WriteLn('Folder ID not found');
      Exit;
    end;
  http.SetUrlVar('folder_id',folderId);

  //  Send the request to list the messages.
  success := http.QuickGetSb('https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/mailFolders/{$folder_id}/messages',sbResponse);
  if ((success <> True) and (http.LastStatus = 0)) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  json := TJsonObject.Create;
  json.LoadSb(sbResponse);
  json.EmitCompact := False;

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

  //  In my test case, the raw JSON returned is shown below.
  //  Iterate over the messages to get information about each..

  i := 0;
  numMessages := json.SizeOfArray('value');
  while i < numMessages do
    begin
      json.I := i;

      //  This is the id for the email message.
      //  For REST API calls that require particular email message id, this is what should be used..
      messageId := json.StringOf('value[i].id');
      WriteLn('id: ' + messageId);

      WriteLn('From Name: ' + json.StringOf('value[i].from.emailAddress.name'));
      WriteLn('From Addr: ' + json.StringOf('value[i].from.emailAddress.address'));

      numRecipients := json.SizeOfArray('value[i].toRecipients');
      j := 0;
      while j < numRecipients do
        begin
          json.J := j;
          WriteLn('To Name: ' + json.StringOf('value[i].toRecipients[j].emailAddress.name'));
          WriteLn('To Addr: ' + json.StringOf('value[i].toRecipients[j].emailAddress.address'));
          j := j + 1;
        end;

      WriteLn('Subject: ' + json.StringOf('value[i].subject'));
      WriteLn('Has Attachments:' + json.BoolOf('value[i].hasAttachments'));

      WriteLn('Body Content-Type:' + json.StringOf('value[i].body.contentType'));
      bodyContent := json.StringOf('value[i].body.content');
      //  ...

      WriteLn('----');

      i := i + 1;
    end;

  //  The output of the above loop:

  //  id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2wAAAA==
  //  From Name: Chilkat Software
  //  From Addr: support@chilkatsoft.com
  //  To Name: Chilkat Software
  //  To Addr: chilkatsoft@outlook.com
  //  Subject: email with attachments
  //  Has Attachments:True
  //  Body Content-Type:html
  //  ----
  //  id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2gAAAA==
  //  From Name: Chilkat Software
  //  From Addr: support@chilkatsoft.com
  //  To Name: Chilkat Software
  //  To Addr: chilkatsoft@outlook.com
  //  To Name: admin@chilkat.io
  //  To Addr: admin@chilkat.io
  //  Subject: Re: Test HTML email with embedded images.
  //  Has Attachments:False
  //  Body Content-Type:html
  //  ----
  //  id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAA==
  //  From Name: Chilkat Software
  //  From Addr: support@chilkatsoft.com
  //  To Name: chilkatsoft@outlook.com
  //  To Addr: chilkatsoft@outlook.com
  //  To Name: admin@chilkat.io
  //  To Addr: admin@chilkat.io
  //  Subject: Test HTML email with embedded images.
  //  Has Attachments:False
  //  Body Content-Type:html
  //  ----

  //  ------------------------------------------------------
  //  This is the raw JSON response:

  //  {
  //    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('chilkatsoft%40outlook.com')/mailFolders('AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAAA%3D')/messages",
  //    "value": [
  //      {
  //        "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADBQ0bb\"",
  //        "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2wAAAA==",
  //        "createdDateTime": "2017-05-10T00:27:40Z",
  //        "lastModifiedDateTime": "2017-05-10T00:30:51Z",
  //        "changeKey": "CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADBQ0bb",
  //        "categories": [
  //        ],
  //        "receivedDateTime": "2017-05-10T00:27:41Z",
  //        "sentDateTime": "2017-05-10T00:27:12Z",
  //        "hasAttachments": true,
  //        "internetMessageId": "<9a65d233-0882-d346-f405-202a8b1a3acd@chilkatsoft.com>",
  //        "subject": "email with attachments",
  //        "bodyPreview": "This email has attachments...",
  //        "importance": "normal",
  //        "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAAA=",
  //        "conversationId": "AQQkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAQABQcNI8CG1xKpGjzxJTpoOE=",
  //        "isDeliveryReceiptRequested": null,
  //        "isReadReceiptRequested": false,
  //        "isRead": true,
  //        "isDraft": false,
  //        "webLink": "https://outlook.live.com/owa/?ItemID=AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5%2BvF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2wAAAA%3D%3D&exvsurl=1&viewmodel=ReadMessageItem",
  //        "inferenceClassification": "focused",
  //        "body": {
  //          "contentType": "html",
  //          "content": "<html>...</html>\r\n"
  //        },
  //        "sender": {
  //          "emailAddress": {
  //            "name": "Chilkat Software",
  //            "address": "support@chilkatsoft.com"
  //          }
  //        },
  //        "from": {
  //          "emailAddress": {
  //            "name": "Chilkat Software",
  //            "address": "support@chilkatsoft.com"
  //          }
  //        },
  //        "toRecipients": [
  //          {
  //            "emailAddress": {
  //              "name": "Chilkat Software",
  //              "address": "chilkatsoft@outlook.com"
  //            }
  //          }
  //        ],
  //        "ccRecipients": [
  //        ],
  //        "bccRecipients": [
  //        ],
  //        "replyTo": [
  //        ]
  //      },
  //      {
  //        "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADBQ0bZ\"",
  //        "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2gAAAA==",
  //        "createdDateTime": "2017-05-10T00:25:28Z",
  //        "lastModifiedDateTime": "2017-05-10T00:25:44Z",
  //        "changeKey": "CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADBQ0bZ",
  //        "categories": [
  //        ],
  //        "receivedDateTime": "2017-05-10T00:25:28Z",
  //        "sentDateTime": "2017-05-10T00:25:10Z",
  //        "hasAttachments": false,
  //        "internetMessageId": "<707ff357-28ea-7ebd-9409-f46d752e871f@chilkatsoft.com>",
  //        "subject": "Re: Test HTML email with embedded images.",
  //        "bodyPreview": "My reply...",
  //        "importance": "normal",
  //        "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAAA=",
  //        "conversationId": "AQQkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAQACYVrc_6yptKn9tuOqBiUMQ=",
  //        "isDeliveryReceiptRequested": null,
  //        "isReadReceiptRequested": false,
  //        "isRead": true,
  //        "isDraft": false,
  //        "webLink": "https://outlook.live.com/owa/?ItemID=AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5%2BvF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2gAAAA%3D%3D&exvsurl=1&viewmodel=ReadMessageItem",
  //        "inferenceClassification": "focused",
  //        "body": {
  //          "contentType": "html",
  //          "content": "<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta content=\"text/html; charset=utf-8\">\r\n</head>\r\n<body bgcolor=\"#FFFFFF\">...</body>\r\n</html>\r\n"
  //        },
  //        "sender": {
  //          "emailAddress": {
  //            "name": "Chilkat Software",
  //  
  //            "address": "support@chilkatsoft.com"
  //          }
  //        },
  //        "from": {
  //          "emailAddress": {
  //            "name": "Chilkat Software",
  //            "address": "support@chilkatsoft.com"
  //          }
  //        },
  //        "toRecipients": [
  //          {
  //            "emailAddress": {
  //              "name": "Chilkat Software",
  //              "address": "chilkatsoft@outlook.com"
  //            }
  //          },
  //          {
  //            "emailAddress": {
  //              "name": "admin@chilkat.io",
  //              "address": "admin@chilkat.io"
  //            }
  //          }
  //        ],
  //        "ccRecipients": [
  //          {
  //            "emailAddress": {
  //              "name": "Matt Smith",
  //              "address": "chilkat.support@gmail.com"
  //            }
  //          }
  //        ],
  //        "bccRecipients": [
  //        ],
  //        "replyTo": [
  //        ]
  //      },
  //      {
  //        "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADBQ0bY\"",
  //        "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAA==",
  //        "createdDateTime": "2017-05-10T00:22:23Z",
  //        "lastModifiedDateTime": "2017-05-10T00:22:45Z",
  //        "changeKey": "CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADBQ0bY",
  //        "categories": [
  //        ],
  //        "receivedDateTime": "2017-05-10T00:22:23Z",
  //        "sentDateTime": "2017-05-10T00:22:03Z",
  //        "hasAttachments": false,
  //        "internetMessageId": "<4da724c6-fa94-5516-81d5-9cdf152eddc5@chilkatsoft.com>",
  //        "subject": "Test HTML email with embedded images.",
  //        "bodyPreview": "This is a test email with images...",
  //        "importance": "normal",
  //        "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAAA=",
  //        "conversationId": "AQQkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAQACYVrc_6yptKn9tuOqBiUMQ=",
  //        "isDeliveryReceiptRequested": null,
  //        "isReadReceiptRequested": false,
  //        "isRead": true,
  //        "isDraft": false,
  //        "webLink": "https://outlook.live.com/owa/?ItemID=AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5%2BvF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAA%3D%3D&exvsurl=1&viewmodel=ReadMessageItem",
  //        "inferenceClassification": "focused",
  //        "body": {
  //          "contentType": "html",
  //          "content": "<html>...</html>\r\n"
  //        },
  //        "sender": {
  //          "emailAddress": {
  //            "name": "Chilkat Software",
  //            "address": "support@chilkatsoft.com"
  //          }
  //        },
  //        "from": {
  //          "emailAddress": {
  //            "name": "Chilkat Software",
  //            "address": "support@chilkatsoft.com"
  //          }
  //        },
  //        "toRecipients": [
  //          {
  //            "emailAddress": {
  //              "name": "chilkatsoft@outlook.com",
  //              "address": "chilkatsoft@outlook.com"
  //            }
  //          },
  //          {
  //            "emailAddress": {
  //              "name": "admin@chilkat.io",
  //              "address": "admin@chilkat.io"
  //            }
  //          }
  //        ],
  //        "ccRecipients": [
  //          {
  //            "emailAddress": {
  //              "name": "Matt Smith",
  //              "address": "chilkat.support@gmail.com"
  //            }
  //          }
  //        ],
  //        "bccRecipients": [
  //        ],
  //        "replyTo": [
  //        ]
  //      }
  //    ]
  //  
  //  }


  http.Free;
  sbResponse.Free;
  htFolderMap.Free;
  sbMap.Free;
  json.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.