VB.NET
Outlook -- Delete Email

Demonstrates how to delete email using the Microsoft Graph API.
Note: This example requires Chilkat v9.5.0.68 or greater.
Chilkat VB.NET Downloads

VB.NET
Dim success As Boolean = False

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

Dim http As New Chilkat.Http

' Use your previously obtained access token here:
http.AuthToken = "MICROSOFT_GRAPH_ACCESS_TOKEN"

' This example will search /Inbox for a message we want to delete.
' First we need to get the folder ID for /Inbox.
' Then we'll search for messages based on some criteria, and delete the matching messages.

' Get the folder ID for /Inbox from the folder map created by this example 
Dim htFolderMap As New Chilkat.Hashtable
Dim sbMap As New Chilkat.StringBuilder
sbMap.LoadFile("qa_data/outlook/folderMap.xml","utf-8")
htFolderMap.AddFromXmlSb(sbMap)

' Get the ID for the "/Inbox" folder:
Dim folderId As String = htFolderMap.LookupStr("/Inbox")
If (htFolderMap.LastMethodSuccess <> True) Then
    Debug.WriteLine("Folder ID not found")
    Exit Sub
End If


success = True
Dim json As New Chilkat.JsonObject
json.EmitCompact = False

' Search for emails in this folder with the phrase "Amazon SES" in the subject, and return only the id and subject.
http.SetUrlVar("folder_id",folderId)
http.SetUrlVar("select","id,subject")
http.SetUrlVar("filter","contains(subject,'Amazon SES')")

Dim sbResponse As New Chilkat.StringBuilder
success = http.QuickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse)
If (success <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If

json.LoadSb(sbResponse)
' Show the results..
Debug.WriteLine(json.Emit())

' Sample results:

' 	{
' 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/mailFolders('AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA')/messages(id,subject)",
' 	  "value": [
' 	    {
' 	      "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAA1jyl6\"",
' 	      "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_AAAAA=",
' 	      "subject": "Amazon SES Address Verification Request in region US West (Oregon)"
' 	    },
' 	    {
' 	      "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAA1jyl7\"",
' 	      "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_EAAAA=",
' 	      "subject": "Amazon SES Address Verification Request in region US West (Oregon)"
' 	    }
' 	  ]
' 	}
' 

' ------------
' Proceed to delete each of the above emails...
Dim resp As String
Dim messageId As String
Dim i As Integer = 0
Dim numEmails As Integer = json.SizeOfArray("value")
While i < numEmails
    json.I = i

    messageId = json.StringOf("value[i].id")
    http.SetUrlVar("message_id",messageId)
    Debug.WriteLine("Deleting " & messageId)
    resp = http.QuickDeleteStr("https://graph.microsoft.com/v1.0/me/messages/{$message_id}")
    If (http.LastMethodSuccess <> True) Then
        Debug.WriteLine(http.LastErrorText)
        Exit Sub
    End If


    ' A 204 response indicates success.
    If (http.LastStatus = 204) Then
        Debug.WriteLine("Message deleted.")
    Else
        Debug.WriteLine("Message not deleted.")
        Debug.WriteLine(resp)
    End If

    i = i + 1
End While

' Sample output:

' Deleting AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_AAAAA=
' Message deleted.
' Deleting AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_EAAAA=
' Message deleted.
'