Pascal (Lazarus/Delphi)
Pascal (Lazarus/Delphi)
MS Teamwork: Create an Online Meeting
See more Microsoft Teams Examples
Demonstrates how to create 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 Pascal (Lazarus/Delphi) Downloads
program ChilkatDemo;
// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SysUtils,
CkDllLoader,
Chilkat.Http,
Chilkat.HttpResponse,
Chilkat.JsonObject;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
http: THttp;
jsonOAuthCC: TJsonObject;
json: TJsonObject;
resp: THttpResponse;
jsonResp: TJsonObject;
statusCode: Integer;
begin
success := False;
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := THttp.Create;
// 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.
jsonOAuthCC := TJsonObject.Create;
// --------------------------------------------------------------------------------------------------------
// 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": "2023-12-12T14:30:34-07:00",
// "endDateTime": "2023-12-12T15:00:34-07:00",
// "subject": "User Token Meeting"
// }
json := TJsonObject.Create;
json.UpdateString('startDateTime','2023-12-12T14:30:34-07:00');
json.UpdateString('endDateTime','2023-12-12T15:00:34-07:00');
json.UpdateString('subject','User Token Meeting');
http.SetRequestHeader('Content-Type','application/json');
// The user ID is 4ee732c3-322e-4a6b-b729-2fd1eb5c6004
// You will need to change the ID to your user's ID.
resp := THttpResponse.Create;
success := http.HttpJson('POST','https://graph.microsoft.com/v1.0/users/4ee732c3-322e-4a6b-b729-2fd1eb5c6004/onlineMeetings',json,'application/json',resp);
if (success = False) then
begin
WriteLn(http.LastErrorText);
Exit;
end;
// ----------------------------------------------------------------------------------------
// 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"
// }
// }
// }
// ----------------------------------------------------------------------------------------
jsonResp := TJsonObject.Create;
jsonResp.Load(resp.BodyStr);
jsonResp.EmitCompact := False;
WriteLn(jsonResp.Emit());
statusCode := resp.StatusCode;
WriteLn('response status code = ' + statusCode);
if (statusCode <> 201) then
begin
WriteLn('Failed.');
Exit;
end;
// 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": "MSo0ZWU3MzJjMy0zMjJlLTRhNmItYjcyOS0yZmQxZWI1YzYwMDQqMCoqMTk6bWVldGluZ19ZemswWXpOaU9XTXRaV0l5TUMwME5EY3dMVGt4Tm1VdFlUSXpOMlF3WTJKbE9HWm1AdGhyZWFkLnYy",
// "creationDateTime": "2023-11-17T17:00:45.1935677Z",
// "startDateTime": "2023-12-12T21:30:34Z",
// "endDateTime": "2023-12-12T22:00:34Z",
// "joinUrl": "https://teams.microsoft.com/l/meetup-join/19%3ameeting_Yzk0YzNiOWMtZWIyMC00NDcwLTkxNmUtYTIzN2QwY2JlOGZm%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": "238818764794",
// "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_Yzk0YzNiOWMtZWIyMC00NDcwLTkxNmUtYTIzN2QwY2JlOGZm%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": "User Token Meeting",
// "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_Yzk0YzNiOWMtZWIyMC00NDcwLTkxNmUtYTIzN2QwY2JlOGZm@thread.v2",
// "messageId": "0",
// "replyChainMessageId": null
// },
// "joinInformation": {
// "content": "data:text/html,%3cdiv+style%3d%22width%3a .... %2fdiv%3e",
// "contentType": "html"
// },
// "joinMeetingIdSettings": {
// "isPasscodeRequired": false,
// "joinMeetingId": "238818764794",
// "passcode": null
// },
// "lobbyBypassSettings": {
// "scope": "organization",
// "isDialInBypassEnabled": false
// }
// }
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
WriteLn('Success.');
http.Free;
jsonOAuthCC.Free;
json.Free;
resp.Free;
jsonResp.Free;
end;
// ---------------------------------------------------------------------------
begin
try
RunDemo;
except
on E: Exception do
WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
end;
WriteLn;
{$IFDEF MSWINDOWS}
WriteLn('Press Enter to exit...');
ReadLn;
{$ENDIF}
end.