I have been trying to get the members of a specific securitygroup from Azure AD with the following code from Graph api

var members = await graphClient.Groups["{group-id}"].Members
    .Request()
    .GetAsync();   

I followed the following link which says to give the following permission to the registered app link:

My test code

    public async Task<JsonResult> test()
    {
        // Values from app registration
        var clientId = "fb2****-29ee-****-ab90-********0c7e1";
        var clientSecret = "w7N*******........***yO8ig";

        var scopes = new[] { "https://graph.microsoft.com/.default" };

        // Multi-tenant apps can use "common",
        // single-tenant apps must use the tenant ID from the Azure portal
        var tenantId = "e4c9ab4e-****-40d5-****-230****57fb";

        var options = new TokenCredentialOptions
        {
            AuthorityHost = AzureAuthorityHosts.AzurePublicCloud
        };

        // https://docs.microsoft.com/dotnet/api/azure.identity.clientsecretcredential
        var clientSecretCredential = new ClientSecretCredential(
            tenantId, clientId, clientSecret, options);

        var graphClient = new GraphServiceClient(clientSecretCredential, scopes);

        try
        {
            var members = await graphClient.Groups["13ad4665-****-43e9-9b0f-ca****eb"].Members.Request().GetAsync();
            return Json(members);
        }
        catch (Exception e)
        {
            return Json("");
            throw;
        }
    }

My test result

CodePudding user response：

1st step : you will have to register an AD app and give permission on graph to read users and groups, please check this stackoverflow answer