(C++) Outlook -- List Messages in a Specified Folder

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

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

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

void ChilkatSample(void)
    {
    // 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:
    // 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.put_AuthToken("MICROSOFT_GRAPH_ACCESS_TOKEN");

    CkStringBuilder sbResponse;

    // 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)
    CkHashtable htFolderMap;
    CkStringBuilder sbMap;
    sbMap.LoadFile("qa_data/outlook/folderMap.xml","utf-8");
    htFolderMap.AddFromXmlSb(sbMap);

    // Get the ID for the "/Inbox/abc" folder:
    const char *folderId = htFolderMap.lookupStr("/Inbox/abc");
    if (htFolderMap.get_LastMethodSuccess() != true) {
        std::cout << "Folder ID not found" << "\r\n";
        return;
    }

    http.SetUrlVar("folder_id",folderId);

    // Send the request to list the messages.
    bool success = http.QuickGetSb("https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/mailFolders/{$folder_id}/messages",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkJsonObject json;
    json.LoadSb(sbResponse);
    json.put_EmitCompact(false);

    std::cout << "Status code = " << http.get_LastStatus() << "\r\n";
    if (http.get_LastStatus() != 200) {
        std::cout << json.emit() << "\r\n";
        std::cout << "Failed." << "\r\n";
    }

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

    int i = 0;
    int numMessages = json.SizeOfArray("value");
    while (i < numMessages) {
        json.put_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..
        const char *messageId = json.stringOf("value[i].id");
        std::cout << "id: " << messageId << "\r\n";

        std::cout << "From Name: " << json.stringOf("value[i].from.emailAddress.name") << "\r\n";
        std::cout << "From Addr: " << json.stringOf("value[i].from.emailAddress.address") << "\r\n";

        int numRecipients = json.SizeOfArray("value[i].toRecipients");
        int j = 0;
        while (j < numRecipients) {
            json.put_J(j);
            std::cout << "To Name: " << json.stringOf("value[i].toRecipients[j].emailAddress.name") << "\r\n";
            std::cout << "To Addr: " << json.stringOf("value[i].toRecipients[j].emailAddress.address") << "\r\n";
            j = j + 1;
        }

        std::cout << "Subject: " << json.stringOf("value[i].subject") << "\r\n";
        std::cout << "Has Attachments:" << json.BoolOf("value[i].hasAttachments") << "\r\n";

        std::cout << "Body Content-Type:" << json.stringOf("value[i].body.contentType") << "\r\n";
        const char *bodyContent = json.stringOf("value[i].body.content");
        // ...

        std::cout << "----" << "\r\n";

        i = i + 1;
    }

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