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(Java) 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

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    //  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 = new CkStringBuilder();

    //  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)
    CkHashtable htFolderMap = new CkHashtable();
    CkStringBuilder sbMap = new CkStringBuilder();
    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.get_LastMethodSuccess() != true) {
        System.out.println("Folder ID not found");
        return;
        }

    http.SetUrlVar("folder_id",folderId);

    //  Send the request to list the messages, returning only the subject and from address.
    boolean success = http.QuickGetSb("https://graph.microsoft.com/v1.0/users/me/mailFolders/{$folder_id}/messages?$select=subject,from",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        System.out.println(http.lastErrorText());
        return;
        }

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

    System.out.println("Status code = " + http.get_LastStatus());
    if (http.get_LastStatus() != 200) {
        System.out.println(json.emit());
        System.out.println("Failed.");
        }

    System.out.println(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.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..
        String messageId = json.stringOf("value[i].id");
        System.out.println("id: " + messageId);
        System.out.println("From Name: " + json.stringOf("value[i].from.emailAddress.name"));
        System.out.println("From Addr: " + json.stringOf("value[i].from.emailAddress.address"));
        System.out.println("Subject: " + json.stringOf("value[i].subject"));
        System.out.println("--");

        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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