public async Task <AuthenticationResult> AcquireTokenSilentAsync(string authority, string resource, string clientId, UserIdentifier objectUserId)
{
AuthenticationContext authContext;
AuthenticationResult authResult;
authority.AssertNotEmpty(nameof(authority));
resource.AssertNotEmpty(nameof(resource));
objectUserId.AssertNotNull(nameof(objectUserId));
try
{
authContext = new AuthenticationContext(authority);
authResult = await authContext.AcquireTokenSilentAsync(
resource,
clientId,
objectUserId).ConfigureAwait(false);
return(authResult);
}
finally
{
authContext = null;
}
}