I have a small app to manage my work roster, and am adding the ability to upload to Google Calendar.
Ideally, I would like Google to manage the allocation of an ID to each event, and it would have been nice if ID was the return value of the function that inserted a new event, but it seems that's not the way it works.
How should I go about retrieving the Event ID when I create a new event. All I can think of is retrieving a list of events and searching for the one I just created, which seems like a complete kluge. And might not get the right one anyway (if for example due to a bug I create 2 duplicate events).
Dim MyCredential As UserCredential
Dim stream As New FileStream("client_secret.json", FileMode.Open, FileAccess.Read)
Dim credPath As String = System.Environment.GetFolderPath(Environment.SpecialFolder.Personal)
credPath = SettingsDirectory & "Tripster.json"
MyCredential = GoogleWebAuthorizationBroker.AuthorizeAsync(GoogleClientSecrets.Load(stream).Secrets, Scopes, "user", CancellationToken.None, New FileDataStore(credPath, True)).Result
MsgBox("Credential saved to " & credPath)
'create google calendar API service
Dim MyInitializer As New BaseClientService.Initializer()
MyInitializer.HttpClientInitializer = MyCredential
MyInitializer.ApplicationName = "Tripster"
Dim MyService As New CalendarService(MyInitializer)
'insert
Dim CalendarEvent As New Data.Event
Dim StartDateTime As New Data.EventDateTime
Dim A As New Date(2017, 5, 20, 12, 0, 0)
StartDateTime.DateTime = A
Dim b As Date
b = A.AddHours(2)
Dim EndDateTime As New Data.EventDateTime
EndDateTime.DateTime = b
CalendarEvent.Start = StartDateTime
CalendarEvent.End = EndDateTime
'CalendarEvent.Id = System.Guid.NewGuid.ToString
CalendarEvent.Description = "Test"
CalendarEvent.Summary = "A test event inserted by Tripster"
MyService.Events.Insert(CalendarEvent, "primary").Execute()
'define parameters of request
Dim MyRequest As New EventsResource.ListRequest(MyService, "primary")
MyRequest.TimeMin = A
MyRequest.ShowDeleted = False
MyRequest.SingleEvents = True
MyRequest.MaxResults = 10
MyRequest.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime
Dim MyEvents As Events = MyRequest.Execute
Dim OutputString As String = "Upcoming Events" & vbNewLine
If Not MyEvents.Items Is Nothing AndAlso MyEvents.Items.Count > 0 Then
For Each EventItem As Google.Apis.Calendar.v3.Data.Event In MyEvents.Items
If EventItem.Description = CalendarEvent.Description Then
Dim whenstring As String = EventItem.Start.DateTime.ToString
If String.IsNullOrEmpty(whenstring) Then
whenstring = EventItem.Start.Date
End If
OutputString += whenstring & " " & EventItem.Description & " " & EventItem.Summary & " " & EventItem.Id & vbNewLine
Exit For
End If
Next
Else
OutputString += "No upcoming events found." & vbNewLine
End If
MsgBox(OutputString)
Is there a better way? Or should I just stop worrying and provide my own Event IDs?
Thanks
Nick
Posting this as answer to close the question. If you create an event using Events.insert, it will return a response which contains the eventID as the docs says: If successful, this method returns an Events resource in the response body which contains the eventID.