ClientSecretCredential, The method or operation is not implemented error

-- -- 892 Reputation points
2022-04-07T03:28:29.873+00:00

Hi

I am trying to get a MS Graph to read some documents from SharePoint. This needs to be done without a user being logged in. I am using code below at the end to do so. I have created app and client secret in Azure AD. However when I run below code I get a 'System.NotImplementedException: The method or operation is not implemented' error on line;

var clientSecretCredential = new ClientSecretCredential(tenantId, clientId, clientSecret, options);

What am I missing?

Thanks

Regards

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

   var tenantId = "...";

   var clientId = "...";
   var clientSecret = "...";

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

   var clientSecretCredential = new ClientSecretCredential(tenantId, clientId, clientSecret, options);

   graphClient = new GraphServiceClient(clientSecretCredential, scopes);
Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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Accepted answer
  1. CarlZhao-MSFT 38,941 Reputation points
    2022-04-07T06:49:59.737+00:00

    Hi @-- --

    Try this:

    string[] scopes = { "https://graph.microsoft.com/.default" };  
      
    IConfidentialClientApplication confidentialClientApplication = ConfidentialClientApplicationBuilder  
                                .Create(clientId)  
                                .WithTenantId(tenantID)  
                                .WithClientSecret(clientSecret)  
                                .Build();  
      
    ClientCredentialProvider authProvider = new ClientCredentialProvider(confidentialClientApplication, scopes);  
      
    GraphServiceClient graphClient = new GraphServiceClient(authProvider);  
    

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