(VB.NET) MS Graph Calendars List

Get all the user's calendars (/calendars navigation property), get the calendars from the default calendar group or from a specific calendar group.

For more details, see https://docs.microsoft.com/en-us/graph/api/user-list-calendars?view=graph-rest-1.0

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' 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 as shown here:
'    Get Microsoft Graph OAuth2 Access Token with Calendars.ReadWrite scope.

Dim jsonToken As New Chilkat.JsonObject
Dim success As Boolean = jsonToken.LoadFile("qa_data/tokens/msGraphCalendar.json")
If (success = False) Then
    Debug.WriteLine(jsonToken.LastErrorText)
    Exit Sub
End If

http.AuthToken = jsonToken.StringOf("access_token")

' Send a GET request to https://graph.microsoft.com/v1.0/me/calendars
Dim strResponse As String = http.QuickGetStr("https://graph.microsoft.com/v1.0/me/calendars")
If (http.LastMethodSuccess = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim json As New Chilkat.JsonObject
json.Load(strResponse)
json.EmitCompact = False

If (http.LastStatus <> 200) Then
    Debug.WriteLine(json.Emit())
    Debug.WriteLine("Failed, response status code = " & http.LastStatus)
    Exit Sub
End If


Debug.WriteLine(json.Emit())

' Sample output:

' {
'   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars",
'   "value": [
'     {
'       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAAAiCsAAAA",
'       "name": "Calendar",
'       "color": "auto",
'       "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAAAAAiEQ==",
'       "canShare": true,
'       "canViewPrivateItems": true,
'       "canEdit": true,
'       "owner": {
'         "name": "...",
'         "address": "outlook_3A33FCEB9B74CC15@outlook.com"
'       }
'     },
'     {
'       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAClEpRTgAAAA==",
'       "name": "Work",
'       "color": "auto",
'       "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAClHjDcA==",
'       "canShare": true,
'       "canViewPrivateItems": true,
'       "canEdit": true,
'       "owner": {
'         "name": "...",
'         "address": "outlook_3A33FCEB9B74CC15@outlook.com"
'       }
'     }
'   ]
' }
' 
' Use this online tool to generate parsing code from sample JSON: 
' Generate Parsing Code from JSON

Dim odataContext As String
Dim i As Integer
Dim count_i As Integer
Dim id As String
Dim name As String
Dim color As String
Dim changeKey As String
Dim canShare As Boolean
Dim canViewPrivateItems As Boolean
Dim canEdit As Boolean
Dim ownerName As String
Dim ownerAddress As String

odataContext = json.StringOf("""@odata.context""")
i = 0
count_i = json.SizeOfArray("value")
While i < count_i
    json.I = i
    id = json.StringOf("value[i].id")
    name = json.StringOf("value[i].name")
    color = json.StringOf("value[i].color")
    changeKey = json.StringOf("value[i].changeKey")
    canShare = json.BoolOf("value[i].canShare")
    canViewPrivateItems = json.BoolOf("value[i].canViewPrivateItems")
    canEdit = json.BoolOf("value[i].canEdit")
    ownerName = json.StringOf("value[i].owner.name")
    ownerAddress = json.StringOf("value[i].owner.address")
    i = i + 1
End While


Debug.WriteLine("Success.")