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即使创建了订阅,我也没有收到 Graph API 通知。

我添加了一个订阅来观察用户邮箱的变化。Graph API 正确验证了 Webhook 端点,并正确创建了令牌和订阅。

var user = await _graphclient
    .Users[userEmailAccount]
    .Request()
    .GetAsync();

var subscription = await _graphclient.Subscriptions
    .Request()
    .AddAsync(new Subscription()
    {
        NotificationUrl = $"https://1f81513d3.ngrok.io/api/mailbox/notification",
        ChangeType = "created",
        ExpirationDateTime = DateTime.UtcNow + new TimeSpan(0, 0, 15, 0),
        Resource = $"users/{user.Id}/mailfolders('inbox')/messages",
    });

我还可以通过调用/Subscriptions.

[
  {
    "resource": "users/csaqwasce-q4c-4a8d-9cb9-e8ca5edcfe3b/mailfolders('inbox')/messages",
    "changeType": "created",
    "notificationUrl": "https://1f81513d3.ngrok.io/api/mailbox/notification",
    "expirationDateTime": "2019-06-01T10:20:27.215458+00:00",
    "applicationId": "2d932e57-3403-48ae-81ad-dea32fb1fb4d",
    "creatorId": "e4572948-bc6c-4bb6-bca3-51336466e567",
    "id": "a822332e-d605-44b7-92d8-49e2b3dc113e",
    "clientState": null
  }
]

我已向该帐户发送了一封电子邮件,但即使看起来端点设置正确,我也从未收到通知。我试图将 Resource 更改为users/messages, different ChangeTypeor ExpirationDateTime,但没有成功。

我不知道如何解决这个问题。

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