(Unicode C) MS Teamwork: Update an Online Meeting

See more Microsoft Teams Examples

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

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#include <C_CkHttpW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkHttpResponseW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpW http;
    HCkJsonObjectW jsonOAuthCC;
    HCkJsonObjectW json;
    HCkStringBuilderW sbRequestBody;
    const wchar_t *userId;
    const wchar_t *meetingId;
    HCkStringBuilderW sbUrl;
    int numReplaced;
    HCkHttpResponseW resp;
    HCkJsonObjectW jsonResp;
    int statusCode;

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

    http = CkHttpW_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 = CkJsonObjectW_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.
    CkJsonObjectW_UpdateString(jsonOAuthCC,L"client_id",L"e1cd2318-xxxx-4916-bfd6-xxxxxxxxxxxx");
    CkJsonObjectW_UpdateString(jsonOAuthCC,L"client_secret",L"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.
    CkJsonObjectW_UpdateString(jsonOAuthCC,L"scope",L"https://graph.microsoft.com/.default");

    // The token endpoint includes your tenant ID.  Use your tenant ID (not the tenant ID shown here).
    CkJsonObjectW_UpdateString(jsonOAuthCC,L"token_endpoint",L"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,
    CkHttpW_putAuthToken(http,CkJsonObjectW_emit(jsonOAuthCC));

    // -------------------------------------------------------------------------------------------
    // 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"
    // }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"startDateTime",L"2023-12-14T14:33:30-07:00");
    CkJsonObjectW_UpdateString(json,L"endDateTime",L"2023-12-14T15:03:30-07:00");
    CkJsonObjectW_UpdateString(json,L"subject",L"Patch Meeting Subject");

    sbRequestBody = CkStringBuilderW_Create();
    CkJsonObjectW_EmitSb(json,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"
    // }

    userId = L"4ee732c3-322e-4a6b-b729-2fd1eb5c6004";
    meetingId = L"MSo0ZWU3MzJjMy0zMjJlLTRhNmItYjcyOS0yZmQxZWI1YzYwMDQqMCoqMTk6bWVldGluZ19OemMwT0RGa1pESXRNV1ZoTkMwME9UQXpMV0psWXpJdFkyRXdNR0kzTVdNME5qTmpAdGhyZWFkLnYy";

    sbUrl = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbUrl,L"https://graph.microsoft.com/v1.0/users/{userId}/onlineMeetings/{meetingId}");
    numReplaced = CkStringBuilderW_Replace(sbUrl,L"{userId}",userId);
    numReplaced = CkStringBuilderW_Replace(sbUrl,L"{meetingId}",meetingId);

    resp = CkHttpW_PTextSb(http,L"PATCH",CkStringBuilderW_getAsString(sbUrl),sbRequestBody,L"utf-8",L"application/json",FALSE,FALSE);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonOAuthCC);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbRequestBody);
        CkStringBuilderW_Dispose(sbUrl);
        return;
    }

    // ----------------------------------------------------------------------------------------
    // 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 = CkJsonObjectW_Create();
    CkJsonObjectW_Load(jsonResp,CkHttpResponseW_bodyStr(resp));
    CkJsonObjectW_putEmitCompact(jsonResp,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(jsonResp));

    statusCode = CkHttpResponseW_getStatusCode(resp);
    wprintf(L"response status code = %d\n",statusCode);

    CkHttpResponseW_Dispose(resp);

    if (statusCode != 200) {
        wprintf(L"Failed.\n");
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonOAuthCC);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbRequestBody);
        CkStringBuilderW_Dispose(sbUrl);
        CkJsonObjectW_Dispose(jsonResp);
        return;
    }

    // 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

    wprintf(L"Success.\n");


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(jsonOAuthCC);
    CkJsonObjectW_Dispose(json);
    CkStringBuilderW_Dispose(sbRequestBody);
    CkStringBuilderW_Dispose(sbUrl);
    CkJsonObjectW_Dispose(jsonResp);

    }