Question

我在我的网站上集成了google drive API推送通知。目前的工作：

在开发者控制台，域等上注册网络应用程序......
OAuth授权
如果不存在则创建频道
如果发生更改，则等待谷歌驱动器POST请求的安装servlet
谷歌驱动器上传（上传或删除）
Servlet会在发生更改时从Google驱动器捕获POST请求
缓存消息：{ "kind": "drive#change", "id": "8664", "selfLink": "https://www.googleapis.com/drive/v2/changes/8664"}

对文件进行更改的Google驱动器API表示：

{
"kind": "drive#change",
  "id": long,
  "fileId": string,
  "selfLink": string,
  "deleted": boolean,
  "modificationDate": datetime,
  "file": files Resource
}

如何获取fileId？为什么Google云端硬盘不会向我发送丢失的字段？我做错了什么？

观看更改代码：

service -> created ok
channelId -> UUID
channelType -> web_hook
channelAddress -> https://example.com/GoogleDriveWebhook (GoogleDriveWebhook is servlet)
public static Channel watchChange(Drive service, String channelId, String channelType, String channelAddress) {
        Channel channel = new Channel();
        channel.setId(channelId);
        channel.setType(channelType);
        channel.setAddress(channelAddress);
        channel.setExpiration(new Date().getTime() + (600000 * 2));//20 min session for channel (test environment)
        try {
            return service.changes().watch(channel).execute();
        } catch (IOException e) {
            System.out.println("Something is wrong with instancing new channel");
            e.printStackTrace();
        }
        return null;
    }

...显然app抓住了谷歌驱动器发送的变化，我被困住了PLZ帮助！

Answer 1

发生通知时发送的POST消息将在标题中包含文件ID（请参阅下面的“X-Goog-Resource-ID”）。如果您正在观看文件或文件夹，您甚至无法解析正文。

更改文件资源的通知消息，该消息不包含请求正文：

POST https://example.com/notifications // Your receiving URL.
Content-Type: application/json; utf-8
Content-Length: 0
X-Goog-Channel-ID: 4ba78bf0-6a47-11e2-bcfd-0800200c9a66
X-Goog-Channel-Token: 398348u3tu83ut8uu38
X-Goog-Channel-Expiration: Tue, 19 Nov 2013 01:13:52 GMT
X-Goog-Resource-ID:  ret08u3rv24htgh289g
X-Goog-Resource-URI: https://www.googleapis.com/drive/v2/files/ret08u3rv24htgh289g
X-Goog-Resource-State:  update
X-Goog-Changed: content,properties
X-Goog-Message-Number: 10

更改更改资源的通知消息，其中包括请求正文：

POST https://example.com/notifications // Your receiving URL.
Content-Type: application/json; utf-8
Content-Length: 118
X-Goog-Channel-ID: 8bd90be9-3a58-3122-ab43-9823188a5b43
X-Goog-Channel-Token: 245t1234tt83trrt333
X-Goog-Channel-Expiration: Tue, 19 Nov 2013 01:13:52 GMT
X-Goog-Resource-ID:  ret987df98743md8g
X-Goog-Resource-URI: https://www.googleapis.com/drive/v2/changes
X-Goog-Resource-State:  changed
X-Goog-Message-Number: 23

{
  "kind": "drive#changes",
  "id": "12345",
  "selfLink": "https://www.googleapis.com/drive/v2/changes/12345"
}

有关详细信息，请参阅https://developers.google.com/drive/web/push#msg-format

如何在Google云端硬盘上获取已更改文件的ID

1 个答案: