(Visual FoxPro) MS Teamwork: Update an Online Meeting

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Demonstrates how to update a Microsoft Teamwork Online Meeting

Note: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.

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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>

Note: This example uses the new "Integrated OAuth2 Client Credentials" feature introduced in Chilkat v9.5.0.96.

For more information, see https://learn.microsoft.com/en-us/graph/api/onlinemeeting-update?view=graph-rest-1.0&tabs=http

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loHttp
LOCAL loJsonOAuthCC
LOCAL loJson
LOCAL loSbRequestBody
LOCAL lcUserId
LOCAL lcMeetingId
LOCAL loSbUrl
LOCAL lnNumReplaced
LOCAL loResp
LOCAL loJsonResp
LOCAL lnStatusCode

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

loHttp = CreateObject('Chilkat_9_5_0.Http')

* Provide the information needed for Chilkat to automatically fetch the OAuth2.0 
* access token as needed.
* This is the new "Integrated OAuth2 Client Credentials" feature introduced in Chilkat v9.5.0.96.  
loJsonOAuthCC = CreateObject('Chilkat_9_5_0.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.
loJsonOAuthCC.UpdateString("client_id","e1cd2318-xxxx-4916-bfd6-xxxxxxxxxxxx")
loJsonOAuthCC.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.
loJsonOAuthCC.UpdateString("scope","https://graph.microsoft.com/.default")

* The token endpoint includes your tenant ID.  Use your tenant ID (not the tenant ID shown here).
loJsonOAuthCC.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,
loHttp.AuthToken = loJsonOAuthCC.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"
* }

loJson = CreateObject('Chilkat_9_5_0.JsonObject')
loJson.UpdateString("startDateTime","2023-12-14T14:33:30-07:00")
loJson.UpdateString("endDateTime","2023-12-14T15:03:30-07:00")
loJson.UpdateString("subject","Patch Meeting Subject")

loSbRequestBody = CreateObject('Chilkat_9_5_0.StringBuilder')
loJson.EmitSb(loSbRequestBody)

* 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"
* }

lcUserId = "4ee732c3-322e-4a6b-b729-2fd1eb5c6004"
lcMeetingId = "MSo0ZWU3MzJjMy0zMjJlLTRhNmItYjcyOS0yZmQxZWI1YzYwMDQqMCoqMTk6bWVldGluZ19OemMwT0RGa1pESXRNV1ZoTkMwME9UQXpMV0psWXpJdFkyRXdNR0kzTVdNME5qTmpAdGhyZWFkLnYy"

loSbUrl = CreateObject('Chilkat_9_5_0.StringBuilder')
loSbUrl.Append("https://graph.microsoft.com/v1.0/users/{userId}/onlineMeetings/{meetingId}")
lnNumReplaced = loSbUrl.Replace("{userId}",lcUserId)
lnNumReplaced = loSbUrl.Replace("{meetingId}",lcMeetingId)

loResp = loHttp.PTextSb("PATCH",loSbUrl.GetAsString(),loSbRequestBody,"utf-8","application/json",0,0)
IF (loHttp.LastMethodSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loJsonOAuthCC
    RELEASE loJson
    RELEASE loSbRequestBody
    RELEASE loSbUrl
    CANCEL
ENDIF

* ----------------------------------------------------------------------------------------
* 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"
*     }
*   }
* }
* ----------------------------------------------------------------------------------------

loJsonResp = CreateObject('Chilkat_9_5_0.JsonObject')
loJsonResp.Load(loResp.BodyStr)
loJsonResp.EmitCompact = 0
? loJsonResp.Emit()

lnStatusCode = loResp.StatusCode
? "response status code = " + STR(lnStatusCode)

RELEASE loResp

IF (lnStatusCode <> 200) THEN
    ? "Failed."
    RELEASE loHttp
    RELEASE loJsonOAuthCC
    RELEASE loJson
    RELEASE loSbRequestBody
    RELEASE loSbUrl
    RELEASE loJsonResp
    CANCEL
ENDIF

* Here is a sample response:

* Use the following online tool to generate parsing code from sample JSON: 
* Generate Parsing Code from JSON

* Use the following online tool to generate parsing code from sample JSON: 
* Generate Parsing Code from JSON

? "Success."

RELEASE loHttp
RELEASE loJsonOAuthCC
RELEASE loJson
RELEASE loSbRequestBody
RELEASE loSbUrl
RELEASE loJsonResp