(MFC) 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 C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>
#include <CkHashtable.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>
#include <CkHttpResponse.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkHttp http;

    // Use your previously obtained access token here:
    http.put_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 
    CkHashtable htFolderMap;
    CkStringBuilder sbMap;
    sbMap.LoadFile("qa_data/outlook/folderMap.xml","utf-8");
    htFolderMap.AddFromXmlSb(sbMap);

    // Get the ID for the "/Inbox" folder:
    const char *folderId = htFolderMap.lookupStr("/Inbox");
    if (htFolderMap.get_LastMethodSuccess() != true) {
        strOut.append("Folder ID not found");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    bool success = true;
    CkJsonObject json;
    json.put_EmitCompact(false);

    // 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')");

    CkStringBuilder sbResponse;
    success = http.QuickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if (success != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    json.LoadSb(sbResponse);
    // Show the results..
    strOut.append(json.emit());
    strOut.append("\r\n");

    if (json.SizeOfArray("value") == 0) {
        strOut.append("Empty result set.");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // 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.

    const char *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"
    // 	}

    CkJsonObject jsonRequestBody;
    jsonRequestBody.UpdateString("comment","This is a comment");

    http.SetUrlVar("message_id",existingMsgId);

    // Create the reply in the Drafts folder:
    CkHttpResponse *resp = http.PostJson2("https://graph.microsoft.com/v1.0/me/messages/{$message_id}/createReply","application/json",jsonRequestBody.emit());
    if (http.get_LastMethodSuccess() != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // A 201 response indicates success.
    if (resp->get_StatusCode() == 201) {
        strOut.append("Created reply draft.");
        strOut.append("\r\n");
        success = true;
    }
    else {
        strOut.append("Response status code = ");
        strOut.appendInt(resp->get_StatusCode());
        strOut.append("\r\n");
        strOut.append("Failed to create reply draft.");
        strOut.append("\r\n");
        success = false;
    }

    // Show the response in both cases..
    CkJsonObject jsonResponse;
    jsonResponse.put_EmitCompact(false);
    jsonResponse.Load(resp->bodyStr());
    strOut.append(jsonResponse.emit());
    strOut.append("\r\n");

    delete resp;
    if (success == false) {
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // ----------------------------------------------
    // Get the message id of the newly created reply.
    const char *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"
    // 	}

    CkJsonObject jsonPatch;
    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.
    CkStringBuilder sbHtml;
    jsonResponse.StringOfSb("body.content",sbHtml);
    // Insert the response HTML in the reply HTML body.
    int numReplaced = sbHtml.ReplaceBetween("<body bgcolor=\"#FFFFFF\">","<hr ","\r\n","<p>This is my response.</p>");
    if (numReplaced != 1) {
        strOut.append("Something is amiss!");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    jsonPatch.UpdateString("body.content",sbHtml.getAsString());

    // Add additional CC, BCC, or TO recipients like this:
    int numToRecipients = jsonResponse.SizeOfArray("toRecipients");
    int i = 0;
    // Copy existing TO recipients.
    while (i < numToRecipients) {
        jsonPatch.put_I(i);
        jsonResponse.put_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;
    }

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

    int numCcRecipients = jsonResponse.SizeOfArray("ccRecipients");
    i = 0;
    // Copy existing CC recipients.
    while (i < numCcRecipients) {
        jsonPatch.put_I(i);
        jsonResponse.put_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;
    }

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

    jsonPatch.put_EmitCompact(false);
    strOut.append(jsonPatch.emit());
    strOut.append("\r\n");

    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",false,false);
    if (http.get_LastMethodSuccess() != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // A 200 response indicates success.
    if (resp->get_StatusCode() == 200) {
        strOut.append("Patched the reply draft.");
        strOut.append("\r\n");
        success = true;
    }
    else {
        strOut.append("Response status code = ");
        strOut.appendInt(resp->get_StatusCode());
        strOut.append("\r\n");
        strOut.append("Failed to patch the reply draft.");
        strOut.append("\r\n");
        success = false;
    }

    // Show the response in both cases..
    jsonResponse.Load(resp->bodyStr());
    strOut.append(jsonResponse.emit());
    strOut.append("\r\n");

    delete resp;
    if (success == false) {
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // ---------------------------------------------------------------------
    // 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","","","",false,false);
    if (http.get_LastMethodSuccess() != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // A 202 response indicates success.
    if (resp->get_StatusCode() == 202) {
        strOut.append("Sent the email reply.");
        strOut.append("\r\n");
        // If the status code was 202, there is no response body.
    }
    else {
        strOut.append("Response status code = ");
        strOut.appendInt(resp->get_StatusCode());
        strOut.append("\r\n");
        strOut.append("Failed to send the email reply.");
        strOut.append("\r\n");
        jsonResponse.Load(resp->bodyStr());
        strOut.append(jsonResponse.emit());
        strOut.append("\r\n");
    }

    delete resp;

    strOut.append("Finished.");
    strOut.append("\r\n");

    // -----------------------------------------------------------------------
    // 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": [
    // 	  ]
    // 	}


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }