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(Delphi ActiveX) Outlook -- Create Reply Email, Update, and Send

Creates a reply email in the Drafts folder, updates the reply with information, and then sends the reply.

Note: This example requires Chilkat v9.5.0.68 or greater.

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

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_v9_5_0_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
htFolderMap: TChilkatHashtable;
sbMap: TChilkatStringBuilder;
folderId: WideString;
success: Integer;
json: TChilkatJsonObject;
sbResponse: TChilkatStringBuilder;
existingMsgId: WideString;
jsonRequestBody: TChilkatJsonObject;
resp: IChilkatHttpResponse;
jsonResponse: TChilkatJsonObject;
replyMsgId: WideString;
jsonPatch: TChilkatJsonObject;
sbHtml: TChilkatStringBuilder;
numReplaced: Integer;
numToRecipients: Integer;
i: Integer;
numCcRecipients: 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:
http.AuthToken := 'MICROSOFT_GRAPH_ACCESS_TOKEN';

// This example will search /Inbox for a message that will be replied to.
// First we need to get the folder ID for /Inbox.
// Then we'll search for messages based on some criteria, and reply to the 1st matching message.
// To reply, we'll create the reply message in the Drafts folder, update it with content, and the send.

// Get the folder ID for /Inbox from the folder map created by this example 
htFolderMap := TChilkatHashtable.Create(Self);
sbMap := TChilkatStringBuilder.Create(Self);
sbMap.LoadFile('qa_data/outlook/folderMap.xml','utf-8');
htFolderMap.AddFromXmlSb(sbMap.ControlInterface);

// Get the ID for the "/Inbox" folder:
folderId := htFolderMap.LookupStr('/Inbox');
if (htFolderMap.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add('Folder ID not found');
    Exit;
  end;

success := 1;
json := TChilkatJsonObject.Create(Self);
json.EmitCompact := 0;

// Search for unread emails in this folder from support@chilkatsoft.com 
http.SetUrlVar('folder_id',folderId);
http.SetUrlVar('select','id,subject');
http.SetUrlVar('filter','(isRead eq false) and (from/emailAddress/address eq ''support@chilkatsoft.com'')');

sbResponse := TChilkatStringBuilder.Create(Self);
success := http.QuickGetSb('https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}',sbResponse.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;
json.LoadSb(sbResponse.ControlInterface);
// Show the results..
Memo1.Lines.Add(json.Emit());

if (json.SizeOfArray('value') = 0) then
  begin
    Memo1.Lines.Add('Empty result set.');
    Exit;
  end;

// Sample results:

// {
//   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/mailFolders('AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA')/messages(id,subject)",
//   "value": [
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADOpwfq\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1wAAAA=",
//       "subject": "This email contains a PDF attachment"
//     },
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADOpwfs\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj14AAAA=",
//       "subject": "This email has the word Amazon in the subject.."
//     }
//   ]
// }

// We'll create a reply for the 1st message in the result set.
// We'll need the message existing id.

existingMsgId := json.StringOf('value[0].id');

// To create a reply, send a request such as the following:

// 	POST https://graph.microsoft.com/v1.0/me/messages/{id}/createReply
// 	Content-type: application/json
// 	Content-length: 248
// 
// 	{
// 	  "comment": "comment-value"
// 	}

jsonRequestBody := TChilkatJsonObject.Create(Self);
jsonRequestBody.UpdateString('comment','This is a comment');

http.SetUrlVar('message_id',existingMsgId);

// Create the reply in the Drafts folder:
resp := http.PostJson2('https://graph.microsoft.com/v1.0/me/messages/{$message_id}/createReply','application/json',jsonRequestBody.Emit());
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// A 201 response indicates success.
if (resp.StatusCode = 201) then
  begin
    Memo1.Lines.Add('Created reply draft.');
    success := 1;
  end
else
  begin
    Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));
    Memo1.Lines.Add('Failed to create reply draft.');
    success := 0;
  end;

// Show the response in both cases..
jsonResponse := TChilkatJsonObject.Create(Self);
jsonResponse.EmitCompact := 0;
jsonResponse.Load(resp.BodyStr);
Memo1.Lines.Add(jsonResponse.Emit());

if (success = 0) then
  begin
    Exit;
  end;

// ----------------------------------------------
// Get the message id of the newly created reply.
replyMsgId := jsonResponse.StringOf('id');

// Update the message with new text in the body..
// Send an HTTP PATCH request that looks something like this:
// Only send the message parts that are changing.

// 	PATCH https://graph.microsoft.com/v1.0/me/messages/{reply_message_id}
// 	Content-type: application/json
// 	Content-length: 248
// 
// 	{
// 	  "subject": "subject-value",
// 	  "body": {
// 	    "contentType": "html",
// 	    "content": "updated HTML goes here"
// 	  },
// 	  "inferenceClassification": "other"
// 	}

jsonPatch := TChilkatJsonObject.Create(Self);
jsonPatch.UpdateString('body.contentType','html');

// The reply email that Outlook created will contain the original message under a horizontal rule.
// The body.content should contain this substring:  "<body bgcolor=\"#FFFFFF\">\r\n<hr "
// We're going to insert our reply after the body tag, and before the hr tag.
sbHtml := TChilkatStringBuilder.Create(Self);
jsonResponse.StringOfSb('body.content',sbHtml.ControlInterface);
// Insert the response HTML in the reply HTML body.
numReplaced := sbHtml.ReplaceBetween('<body bgcolor="#FFFFFF">','<hr ',#13#10,'<p>This is my response.</p>');
if (numReplaced <> 1) then
  begin
    Memo1.Lines.Add('Something is amiss!');
    Exit;
  end;
jsonPatch.UpdateString('body.content',sbHtml.GetAsString());

// Add additional CC, BCC, or TO recipients like this:
numToRecipients := jsonResponse.SizeOfArray('toRecipients');
i := 0;
// Copy existing TO recipients.
while i < numToRecipients do
  begin
    jsonPatch.I := i;
    jsonResponse.I := i;
    jsonPatch.UpdateString('toRecipients[i].emailAddress.name',jsonResponse.StringOf('toRecipients[i].emailAddress.name'));
    jsonPatch.UpdateString('toRecipients[i].emailAddress.address',jsonResponse.StringOf('toRecipients[i].emailAddress.address'));
    i := i + 1;
  end;

// Add an additional TO recipient.
jsonPatch.I := numToRecipients;
jsonPatch.UpdateString('toRecipients[i].emailAddress.name','Chilkat');
jsonPatch.UpdateString('toRecipients[i].emailAddress.address','admin@chilkat.io');

numCcRecipients := jsonResponse.SizeOfArray('ccRecipients');
i := 0;
// Copy existing CC recipients.
while i < numCcRecipients do
  begin
    jsonPatch.I := i;
    jsonResponse.I := i;
    jsonPatch.UpdateString('ccRecipients[i].emailAddress.name',jsonResponse.StringOf('ccRecipients[i].emailAddress.name'));
    jsonPatch.UpdateString('ccRecipients[i].emailAddress.address',jsonResponse.StringOf('ccRecipients[i].emailAddress.address'));
    i := i + 1;
  end;

// Add an additional CC recipient.
jsonPatch.I := numCcRecipients;
jsonPatch.UpdateString('ccRecipients[i].emailAddress.name','Chilkat GMail');
jsonPatch.UpdateString('ccRecipients[i].emailAddress.address','chilkat.support@gmail.com');

jsonPatch.EmitCompact := 0;
Memo1.Lines.Add(jsonPatch.Emit());

http.SetUrlVar('message_id',replyMsgId);
resp := http.PText('PATCH','https://graph.microsoft.com/v1.0/me/messages/{$message_id}',jsonPatch.Emit(),'utf-8','application/json',0,0);
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// A 200 response indicates success.
if (resp.StatusCode = 200) then
  begin
    Memo1.Lines.Add('Patched the reply draft.');
    success := 1;
  end
else
  begin
    Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));
    Memo1.Lines.Add('Failed to patch the reply draft.');
    success := 0;
  end;

// Show the response in both cases..
jsonResponse.Load(resp.BodyStr);
Memo1.Lines.Add(jsonResponse.Emit());

if (success = 0) then
  begin
    Exit;
  end;

// ---------------------------------------------------------------------
// OK, let's send the reply email...
// To send, POST with an empty request body:
// POST https://graph.microsoft.com/v1.0/me/messages/{id}/send

resp := http.PText('POST','https://graph.microsoft.com/v1.0/me/messages/{$message_id}/send','','','',0,0);
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// A 202 response indicates success.
if (resp.StatusCode = 202) then
  begin
    Memo1.Lines.Add('Sent the email reply.');
    // If the status code was 202, there is no response body.
  end
else
  begin
    Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));
    Memo1.Lines.Add('Failed to send the email reply.');
    jsonResponse.Load(resp.BodyStr);
    Memo1.Lines.Add(jsonResponse.Emit());
  end;

Memo1.Lines.Add('Finished.');

// -----------------------------------------------------------------------
// A sample successful JSON response for the createReply looks like this:

// 	{
// 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#message",
// 	  "@odata.type": "#microsoft.graph.message",
// 	  "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADQAwR4\"",
// 	  "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM-lQbAAAAA=",
// 	  "createdDateTime": "2017-06-01T14:31:56Z",
// 	  "lastModifiedDateTime": "2017-06-01T14:31:56Z",
// 	  "changeKey": "CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADQAwR4",
// 	  "categories": [
// 	  ],
// 	  "receivedDateTime": "2017-06-01T14:31:56Z",
// 	  "sentDateTime": "2017-06-01T14:31:56Z",
// 	  "hasAttachments": false,
// 	  "internetMessageId": "<SN1PR20MB0461AF40FC899A8462536F04E6F60@SN1PR20MB0461.namprd20.prod.outlook.com>",
// 	  "subject": "RE: This email contains a PDF attachment",
// 	  "bodyPreview": "________________________________\r\nFrom: Chilkat Software <support@chilkatsoft.com>\r\nSent: Tuesday, May 30, 2017 10:58:56 PM\r\nTo: chilkatsoft@outlook.com\r\nSubject: This email contains a PDF attachment\r\n\r\nThis email contains a PDF attachment\r\n--\r\nBest Regar",
// 	  "importance": "normal",
// 	  "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA",
// 	  "conversationId": "AQQkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAQAMMaWY-CWmVOqNKt-NiVhkU=",
// 	  "isDeliveryReceiptRequested": false,
// 	  "isReadReceiptRequested": false,
// 	  "isRead": true,
// 	  "isDraft": true,
// 	  "webLink": "https://outlook.live.com/owa/?ItemID=AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5%2BvF7TKKdE6bGCRqXyl2PQAAAgEPAAAA5%2BvF7TKKdE6bGCRqXyl2PQAAAM%2FlQbAAAAA%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=us-ascii\">\r\n<meta content=\"text/html; charset=utf-8\">\r\n</head>\r\n<body bgcolor=\"#FFFFFF\">\r\n<hr tabindex=\"-1\" style=\"display:inline-block; width:98%\"> ... </html>\r\n"
// 	  },
// 	  "sender": {
// 	    "emailAddress": {
// 	      "name": "Matt Smith",
// 	      "address": "chilkatsoft@outlook.com"
// 	    }
// 	  },
// 	  "from": {
// 	    "emailAddress": {
// 	      "name": "Matt Smith",
// 	      "address": "chilkatsoft@outlook.com"
// 	    }
// 	  },
// 	  "toRecipients": [
// 	    {
// 	      "emailAddress": {
// 	        "name": "Chilkat Software",
// 	        "address": "support@chilkatsoft.com"
// 	      }
// 	    }
// 	  ],
// 	  "ccRecipients": [
// 	  ],
// 	  "bccRecipients": [
// 	  ],
// 	  "replyTo": [
// 	  ]
// 	}
// 

// -----------------------------------------------------------------------
// A sample successful PATCH JSON response looks like this:

// 	{
// 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/messages/$entity",
// 	  "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADQAwSA\"",
// 	  "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM-lQbMAAAA=",
// 	  "createdDateTime": "2017-06-01T15:18:14Z",
// 	  "lastModifiedDateTime": "2017-06-01T15:18:17Z",
// 	  "changeKey": "CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADQAwSA",
// 	  "categories": [
// 	  ],
// 	  "receivedDateTime": "2017-06-01T15:18:15Z",
// 	  "sentDateTime": "2017-06-01T15:18:15Z",
// 	  "hasAttachments": false,
// 	  "internetMessageId": "<SN1PR20MB046138C4A26051200764FE38E6F60@SN1PR20MB0461.namprd20.prod.outlook.com>",
// 	  "subject": "RE: This email has the word Amazon in the subject..",
// 	  "bodyPreview": "This is my response.\r\n\r\n________________________________\r\nFrom: Chilkat Software <support@chilkatsoft.com>\r\nSent: Tuesday, May 30, 2017 11:40:01 PM\r\nTo: Chilkat Software\r\nSubject: This email has the word Amazon in the subject..\r\n\r\nThis email has the word ",
// 	  "importance": "normal",
// 	  "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA",
// 	  "conversationId": "AQQkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAQAE64PfPP1n1IhU4YasnNN0Q=",
// 	  "isDeliveryReceiptRequested": false,
// 	  "isReadReceiptRequested": false,
// 	  "isRead": true,
// 	  "isDraft": true,
// 	  "webLink": "https://outlook.live.com/owa/?ItemID=AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5%2BvF7TKKdE6bGCRqXyl2PQAAAgEPAAAA5%2BvF7TKKdE6bGCRqXyl2PQAAAM%2FlQbMAAAA%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=us-ascii\">\r\n<meta content=\"text/html; charset=us-ascii\">\r\n<meta content=\"text/html; charset=utf-8\">\r\n</head>\r\n<body bgcolor=\"#FFFFFF\">\r\n<p>This is my response.</p>\r\n<hr tabindex=\"-1\" style=\"display:inline-block; width:98%\">\r\n<div id=\"divRplyFwdMsg\" dir=\"ltr\"><font face=\"Calibri, sans-serif\" color=\"#000000\" style=\"font-size:11pt\"><b>From:</b> Chilkat Software &lt;support@chilkatsoft.com&gt;<br>\r\n<b>Sent:</b> Tuesday, May 30, 2017 11:40:01 PM<br>\r\n<b>To:</b> Chilkat Software<br>\r\n<b>Subject:</b> This email has the word Amazon in the subject..</font>\r\n<div>&nbsp;</div>\r\n</div>\r\n<div><font face=\"Calibri\">This email has the word Amazon in the subject..</font><br>\r\n<div class=\"moz-signature\">-- <br>\r\nBest Regards,<br>\r\nMatt Smith<br>\r\nChilkat Software, Inc.<br>\r\n<p><a href=\"https://twitter.com/chilkatsoft\">Follow Chilkat on Twitter</a> </p>\r\n</div>\r\n</div>\r\n</body>\r\n</html>\r\n"
// 	  },
// 	  "sender": {
// 	    "emailAddress": {
// 	      "name": "Matt Smith",
// 	      "address": "chilkatsoft@outlook.com"
// 	    }
// 	  },
// 	  "from": {
// 	    "emailAddress": {
// 	      "name": "Matt Smith",
// 	      "address": "chilkatsoft@outlook.com"
// 	    }
// 	  },
// 	  "toRecipients": [
// 	    {
// 	      "emailAddress": {
// 	        "name": "Chilkat Software",
// 	        "address": "support@chilkatsoft.com"
// 	      }
// 	    }
// 	  ],
// 	  "ccRecipients": [
// 	  ],
// 	  "bccRecipients": [
// 	  ],
// 	  "replyTo": [
// 	  ]
// 	}
end;

 

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