How to Instantiate GraphServiceClient inside an azure function?

Hello,

I am trying to create an azure function which uses graph api to get the authenticated user's profile from azure ad.

I was able to add authentication of microsoft in the azure function app, but now when I try to create GraphServiceClient, all the resources on the internet, are not working in my case. Maybe it is due to the recent update of Microsoft Graph.

I have tried following ways,

//Method 1
var confidentialClientApplication = ConfidentialClientApplicationBuilder
                                                        .Create(Constants.AppId)
                                                        .WithTenantId(Constants.TenantId)
                                                        .WithClientSecret(Constants.ClientSecret)
                                                        .Build();


            ClientCredentialProvider clientCredentialProvider = new ClientCredentialProvider(confidentialClientApplication);

            GraphServiceClient _client = new GraphServiceClient(clientCredentialProvider);

//Method2


 ClientSecretCredential clientSecretCredential = new ClientSecretCredential(Constants.TenantId, Constants.AppId, Constants.ClientSecret);
            GraphServiceClient _client = new GraphServiceClient(clientSecretCredential, Constants.scope); ;

Even the microsoft's documentation suggests the second method, which is not working. By not working I mean, it is not even compiling, there is no such constructor in GraphServiceClient.

Kindly, suggest what should I do?