更新时间:2023-12-06 08:25:58
看起来这段代码可以工作。它生成一个GraphServiceClient,该GraphServiceClient在每次调用时重用相同的令牌,而不是生成新的令牌。
public GraphServiceClient GenerateGraphUserClient()
{
string userToken = GetUserAccessToken();
GraphServiceClient client= new GraphServiceClient("https://graph.microsoft.com/v1.0", new DelegateAuthenticationProvider(async (requestMessage) =>
{
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("bearer", userToken);
}));
return client;
}
public string GetUserAccessToken()
{
string[] scopes = new string[] { "https://graph.microsoft.com/.default" };
IPublicClientApplication publicClientApplication = PublicClientApplicationBuilder
.Create(_clientId)
.WithTenantId(_domain)
.Build();
var securePassword = new SecureString();
foreach (char c in _password)
securePassword.AppendChar(c);
var result = publicClientApplication.AcquireTokenByUsernamePassword(scopes, _userName, securePassword).ExecuteAsync().Result;
return result.AccessToken;
}