VB.NET Requires Chilkat v11.0.0+
VB.NET
MS Teamwork: Update an Online Meeting
See more Microsoft Teams Examples
Demonstrates how to update a Microsoft Teamwork Online MeetingNote:If using Application access (i.e. client credentials) which is what this example is doing, then you'll need to "Configure application access to online meetings or virtual events" See https://learn.microsoft.com/en-us/graph/cloud-communication-online-meeting-application-access-policy#configure-application-access-policy
For example, here's our Powershell session to setup the policy.
Windows PowerShell
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PS C:\WINDOWS\system32> Install-Module -Name PowerShellGet -Force -AllowClobber
PS C:\WINDOWS\system32> Install-Module -Name MicrosoftTeams -Force -AllowClobber
PS C:\WINDOWS\system32> Connect-MicrosoftTeams
Account Environment Tenant TenantId
------- ----------- ------ --------
admin@chilkat365.com AzureCloud 112d7ed6-71bf-4eba-a866-738364321bfc 112d7ed6-71bf-4eba-a866-738364321bfc
PS C:\WINDOWS\system32> New-CsApplicationAccessPolicy -Identity Test-Teams-policy -AppIds "e1cd2318-298b-4916-bfd6-78cae9938835" -Description "Want App to be able to work with Teams for a User"
Identity : Tag:Test-Teams-policy
AppIds : {e1cd2318-298b-4916-bfd6-78cae9938835}
Description : Want App to be able to work with Teams for a User
PS C:\WINDOWS\system32> Grant-CsApplicationAccessPolicy -PolicyName Test-Teams-policy -Identity "4ee732c3-322e-4a6b-b729-2fd1eb5c6004"
PS C:\WINDOWS\system32>
Chilkat VB.NET Downloads
Dim success As Boolean = False
' This requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
Dim http As New Chilkat.Http
' Provide the information needed for Chilkat to automatically fetch the OAuth2.0
' access token as needed.
Dim jsonOAuthCC As New Chilkat.JsonObject
' --------------------------------------------------------------------------------------------------------
' You'll need to have registered an app in Azure beforehand.
'
' Note: Creating an online meeting requires the following Application permission: OnlineMeetings.ReadWrite.All
'
' See How to Create an Azure App Registration for OAuth 2.0 Client Credentials
' --------------------------------------------------------------------------------------------------------
' Use the values from your App Registration in Azure.
jsonOAuthCC.UpdateString("client_id","e1cd2318-xxxx-4916-bfd6-xxxxxxxxxxxx")
jsonOAuthCC.UpdateString("client_secret","K.d8Q~RoJxxxxvCj_u_xxxxxxxxxxxxxxxxxxxxx")
' You'll always use this scope for client credentials, because the allowed actions
' are determined by the App Permissions defined when you registered the app in Azure.
jsonOAuthCC.UpdateString("scope","https://graph.microsoft.com/.default")
' The token endpoint includes your tenant ID. Use your tenant ID (not the tenant ID shown here).
jsonOAuthCC.UpdateString("token_endpoint","https://login.microsoftonline.com/112d7ed6-71bf-4eba-a866-738364321bfc/oauth2/v2.0/token")
' Provide the OAuth2 information. Chilkat will use this information to automatically fetch the OAuth2 access token as needed,
http.AuthToken = jsonOAuthCC.Emit()
' -------------------------------------------------------------------------------------------
' The following JSON is sent in the request body.
' {
' "startDateTime": "2023-12-14T14:33:30-07:00",
' "endDateTime": "2023-12-14T15:03:30-07:00",
' "subject": "Patch Meeting Subject"
' }
Dim json As New Chilkat.JsonObject
json.UpdateString("startDateTime","2023-12-14T14:33:30-07:00")
json.UpdateString("endDateTime","2023-12-14T15:03:30-07:00")
json.UpdateString("subject","Patch Meeting Subject")
Dim sbRequestBody As New Chilkat.StringBuilder
json.EmitSb(sbRequestBody)
' To update an online meeting, send a PATCH request like this:
'
' PATCH https://graph.microsoft.com/v1.0/users/{userId}/onlineMeetings/{meetingId}
' Content-Type: application/json
'
' {
' "startDateTime": "2020-09-09T14:33:30.8546353-07:00",
' "endDateTime": "2020-09-09T15:03:30.8566356-07:00",
' "subject": "Patch Meeting Subject"
' }
Dim userId As String = "4ee732c3-322e-4a6b-b729-2fd1eb5c6004"
Dim meetingId As String = "MSo0ZWU3MzJjMy0zMjJlLTRhNmItYjcyOS0yZmQxZWI1YzYwMDQqMCoqMTk6bWVldGluZ19OemMwT0RGa1pESXRNV1ZoTkMwME9UQXpMV0psWXpJdFkyRXdNR0kzTVdNME5qTmpAdGhyZWFkLnYy"
Dim sbUrl As New Chilkat.StringBuilder
sbUrl.Append("https://graph.microsoft.com/v1.0/users/{userId}/onlineMeetings/{meetingId}")
Dim numReplaced As Integer = sbUrl.Replace("{userId}",userId)
numReplaced = sbUrl.Replace("{meetingId}",meetingId)
Dim url As String = sbUrl.GetAsString()
Dim resp As New Chilkat.HttpResponse
success = http.HttpSb("PATCH",url,sbRequestBody,"utf-8","application/json",resp)
If (success = False) Then
Debug.WriteLine(http.LastErrorText)
Exit Sub
End If
' ----------------------------------------------------------------------------------------
' IMPORTANT:
' If using Application access, you will get the following error unless you configure your application
' to manage online meetings on behalf of the user. (Note that the user ID is in the URL shown above.)
' See https://learn.microsoft.com/en-us/graph/cloud-communication-online-meeting-application-access-policy#allow-applications-to-access-online-meetings-on-behalf-of-a-user
'
' {
' "error": {
' "code": "General",
' "message": "No application access policy found for this app.",
' "innerError": {
' "request-id": "1c9bd09a-a089-4afd-add4-eec2334135c8",
' "date": "2023-11-17T16:26:53",
' "client-request-id": "1c9bd09a-a089-4afd-add4-eec2334135c8"
' }
' }
' }
' ----------------------------------------------------------------------------------------
Dim jsonResp As New Chilkat.JsonObject
jsonResp.Load(resp.BodyStr)
jsonResp.EmitCompact = False
Debug.WriteLine(jsonResp.Emit())
Dim statusCode As Integer = resp.StatusCode
Debug.WriteLine("response status code = " & statusCode)
If (statusCode <> 200) Then
Debug.WriteLine("Failed.")
Exit Sub
End If
' Here is a sample response:
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON
' {
' "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('4ee732c3-322e-4a6b-b729-2fd1eb5c6004')/onlineMeetings/$entity",
' "id": "MSo0ZWU3MzJjMy0zMjJlLTRhNmItYjcyOS0yZmQxZWI1YzYwMDQqMCoqMTk6bWVldGluZ19OemMwT0RGa1pESXRNV1ZoTkMwME9UQXpMV0psWXpJdFkyRXdNR0kzTVeNME5qTmpAdGhyZWFkLnYy",
' "creationDateTime": "2023-11-17T18:28:15.9746525Z",
' "startDateTime": "2023-12-14T21:33:30Z",
' "endDateTime": "2023-12-14T22:03:30Z",
' "joinUrl": "https://teams.microsoft.com/l/meetup-join/19%3ameeting_Nzd0ODFkZDItMWVhNC00OTAzLWJlYzItY2EwMGI3MWM0NjNj%40thread.v2/0?context=%7b%22Tid%22%3a%22112d7ed6-71bf-4eba-a866-738364321bfc%22%2c%22Oid%22%3a%224ee732c3-322e-4a6b-b729-2fd1eb5c6004%22%7d",
' "meetingCode": "215394732897",
' "isBroadcast": false,
' "autoAdmittedUsers": "everyoneInCompany",
' "outerMeetingAutoAdmittedUsers": null,
' "capabilities": [
' ],
' "externalId": null,
' "iCalUid": null,
' "meetingType": null,
' "meetingMigrationMode": null,
' "joinWebUrl": "https://teams.microsoft.com/l/meetup-join/19%3ameeting_Nzd0ODFkZDItMWVhNC00OTAzLWJlYzItY2EwMGI3MWM0NjNj%40thread.v2/0?context=%7b%22Tid%22%3a%22112d7ed6-71bf-4eba-a866-738364321bfc%22%2c%22Oid%22%3a%224ee732c3-322e-4a6b-b729-2fd1eb5c6004%22%7d",
' "subject": "Patch Meeting Subject",
' "videoTeleconferenceId": null,
' "isEntryExitAnnounced": true,
' "allowedPresenters": "everyone",
' "allowAttendeeToEnableMic": true,
' "allowAttendeeToEnableCamera": true,
' "allowMeetingChat": "enabled",
' "shareMeetingChatHistoryDefault": "none",
' "allowTeamworkReactions": true,
' "anonymizeIdentityForRoles": [
' ],
' "recordAutomatically": false,
' "allowParticipantsToChangeName": false,
' "allowTranscription": true,
' "allowRecording": true,
' "broadcastSettings": null,
' "meetingInfo": null,
' "audioConferencing": null,
' "watermarkProtection": null,
' "chatRestrictions": null,
' "participants": {
' "organizer": {
' "upn": "admin@chilkat365.com",
' "role": "presenter",
' "identity": {
' "application": null,
' "device": null,
' "user": {
' "id": "4ee732c3-322e-4a6b-b729-2fd1eb5c6004",
' "displayName": null,
' "tenantId": "112d7ed6-71bf-4eba-a866-738364321bfc",
' "identityProvider": "AAD"
' }
' }
' },
' "attendees": [
' ]
' },
' "chatInfo": {
' "threadId": "19:meeting_Nzc0ODFkZDItMWVhNC00OTAzLWJlYzItY2EwMGI3MWM0NjNj@thread.v2",
' "messageId": "0",
' "replyChainMessageId": null
' },
' "joinInformation": {
' "content": "data:text/html,%3cdiv+style ... %2fdiv%3e",
' "contentType": "html"
' },
' "joinMeetingIdSettings": {
' "isPasscodeRequired": false,
' "joinMeetingId": "215394732897",
' "passcode": null
' },
' "lobbyBypassSettings": {
' "scope": "organization",
' "isDialInBypassEnabled": false
' }
' }
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON
Debug.WriteLine("Success.")