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(C# UWP/WinRT) Outlook -- List Selected Fields in Messages

Demonstrates how to list the messages in a particular Outlook mailbox folder, but selects particular fields to be returned.

This uses the OData $select system query option. See OData System Query Option $select for general information.

Also see OData URL Conventions for information about $select and other query options.

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 Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

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

Chilkat.Http http = new Chilkat.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.AuthToken = "MICROSOFT_GRAPH_ACCESS_TOKEN";

Chilkat.StringBuilder sbResponse = new Chilkat.StringBuilder();

// In this example, we'd like to get the messages in the folder "/Inbox",
// 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)
Chilkat.Hashtable htFolderMap = new Chilkat.Hashtable();
Chilkat.StringBuilder sbMap = new Chilkat.StringBuilder();
sbMap.LoadFile("qa_data/outlook/folderMap.xml","utf-8");
htFolderMap.AddFromXmlSb(sbMap);

// Get the ID for the "/Inbox" folder:
string folderId = htFolderMap.LookupStr("/Inbox");
if (htFolderMap.LastMethodSuccess != true) {
    Debug.WriteLine("Folder ID not found");
    return;
}

http.SetUrlVar("folder_id",folderId);

// Send the request to list the messages, returning only the subject and from address.
bool success = await http.QuickGetSbAsync("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$select=subject,from",sbResponse);
if ((success != true) && (http.LastStatus == 0)) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.LoadSb(sbResponse);
json.EmitCompact = false;

Debug.WriteLine("Status code = " + Convert.ToString(http.LastStatus));
if (http.LastStatus != 200) {
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed.");
}

Debug.WriteLine(json.Emit());

// 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.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..
    string messageId = json.StringOf("value[i].id");
    Debug.WriteLine("id: " + messageId);
    Debug.WriteLine("From Name: " + json.StringOf("value[i].from.emailAddress.name"));
    Debug.WriteLine("From Addr: " + json.StringOf("value[i].from.emailAddress.address"));
    Debug.WriteLine("Subject: " + json.StringOf("value[i].subject"));
    Debug.WriteLine("--");

    i = i + 1;
}

// The output of the above loop:
// 
// 	id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1oAAAA=
// 	From Name: Chilkat Software
// 	From Addr: admin@chilkat.io
// 	Subject: This is an example email from chilkat.io
// 	--
// 	id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1kAAAA=
// 	From Name: Chilkat Support
// 	From Addr: chilkat.support@gmail.com
// 	Subject: Hello from GMail
// 	--
// 	id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAHrLra8AAAA=
// 	From Name: Microsoft Office 365
// 	From Addr: MicrosoftOffice365@email.office.com
// 	Subject: The latest for you in Office 365
// 	--
// 	id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_EAAAA=
// 	From Name: Amazon Web Services
// 	From Addr: no-reply-aws@amazon.com
// 	Subject: Amazon SES Address Verification Request in region US West (Oregon)
// 	--
// 	id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_AAAAA=
// 	From Name: Amazon Web Services
// 	From Addr: no-reply-aws@amazon.com
// 	Subject: Amazon SES Address Verification Request in region US West (Oregon)
// 	--
// 	id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAAG6l8UAAAA=
// 	From Name: Microsoft
// 	From Addr: msa@communication.microsoft.com
// 	Subject: Updates to our terms of use and privacy statement
// 	--
// 

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

// {
//   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/mailFolders('AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA')/messages(subject,from)",
//   "value": [
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADOpwfo\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1oAAAA=",
//       "subject": "This is an example email from chilkat.io",
//       "from": {
//         "emailAddress": {
//           "name": "Chilkat Software",
//           "address": "admin@chilkat.io"
//         }
//       }
//     },
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADOpwfn\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1kAAAA=",
//       "subject": "Hello from GMail",
//       "from": {
//         "emailAddress": {
//           "name": "Chilkat Support",
//           "address": "chilkat.support@gmail.com"
//         }
//       }
//     },
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAB63d8O\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAHrLra8AAAA=",
//       "subject": "The latest for you in Office 365",
//       "from": {
//         "emailAddress": {
//           "name": "Microsoft Office 365",
//           "address": "MicrosoftOffice365@email.office.com"
//         }
//       }
//     },
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAA1jyl7\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_EAAAA=",
//       "subject": "Amazon SES Address Verification Request in region US West (Oregon)",
//       "from": {
//         "emailAddress": {
//           "name": "Amazon Web Services",
//           "address": "no-reply-aws@amazon.com"
//         }
//       }
//     },
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAA1jyl6\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_AAAAA=",
//       "subject": "Amazon SES Address Verification Request in region US West (Oregon)",
//       "from": {
//         "emailAddress": {
//           "name": "Amazon Web Services",
//           "address": "no-reply-aws@amazon.com"
//         }
//       }
//     },
//     {
//       "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAAGt5YG\"",
//       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAAG6l8UAAAA=",
//       "subject": "Updates to our terms of use and privacy statement",
//       "from": {
//         "emailAddress": {
//           "name": "Microsoft",
//           "address": "msa@communication.microsoft.com"
//         }
//       }
//     }
//   ]
// }

 

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