请求在Azure Active Directory C#中注册的MS图形访问令牌

Question

我是MS Graph的新手。我在应用程序注册门户中创建，并尝试以编程方式从Azure Active Directory检索访问令牌。请检查代码，请让我知道访问令牌为空的原因。

App Permissions

ClientCredentialProvider clientCredential = new ClientCredentialProvider()
{
                authority = "https://login.microsoftonline.com/xxxx",
                client_id = "xxxx",
                client_secret = "xxxx",
                resource = "https://graph.microsoft.com"
 };
var credential = new ClientCredential(clientCredential.client_id, clientCredential.client_secret);
AuthenticationContext authenticationContext = new AuthenticationContext(clientCredential.authority);
var token = authenticationContext.AcquireTokenAsync(clientCredential.resource, credential);
Console.WriteLine("Token:", token);

​

Answer 1

因为AcquireTokenAsync是异步方法，所以它将始终等待完成。使用如下代码获取access token：

var token = authenticationContext.AcquireTokenAsync(resource, credential).Result.AccessToken;