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我想檢測一個文件是否在我自己的Dropbox應用程序的文件夾中刪除。 所以，我設置了一個webhook來接收通知，我用DropboxClient.delta方法知道實際發生了什麼變化。 根據文檔，delta方法返回帶有4個鍵的字典，'條目'鍵包含A list of "delta entries"。一個條目是[path, metadata]（路徑是一個字符串，元數據是一個字典），元數據是無當一個文件被刪除。但我從來沒有得到它無，即使一個文件實際上是從目錄中刪除。 這裏是我的網絡掛接通知接收器：Dropbox webhook，檢測刪除的文件
@app.route('/webhook', methods=['POST', 'GET'])
def webhook():
if request.method == 'GET':
return request.args.get('challenge')
fh = open('dropbox.txt', 'a') # log file
client = dropbox.client.DropboxClient('<access token>')
for uid in json.loads(request.data)['delta']['users']:
fh.write('User %d is doing something:\n' % uid)
cursor = None
has_more = True
while has_more:
result = client.delta(cursor)
i = 1
for path, metadata in result['entries']:
fh.write('Metatadata: %s\n' % json.dumps(metadata))
i = i + 1
cursor = result['cursor']
has_more = result['has_more']
fh.write('End logging activities (#%d) of user %d\n' % (i - 1, uid))
fh.close()
return ''
所以，我添加了一些文件（3）在我的目錄，並在我的日誌文件，我可以看到：
User <uid> is doing something:
Metatadata: {"revision": 3, "bytes": 3952, "thumb_exists": false, "rev": "33bb68089", "modified": "Fri, 28 Aug 2015 13:40:32 +0000", "mime_type": "text/x-python", "path": "/a.py", "is_dir": false, "size": "3.9 KB", "root": "app_folder", "client_mtime": "Fri, 28 Aug 2015 13:40:32 +0000", "icon": "page_white_code"}
Metatadata: {"revision": 4, "bytes": 812, "thumb_exists": false, "rev": "43bb68089", "modified": "Fri, 28 Aug 2015 13:40:34 +0000", "mime_type": "text/x-python", "path": "/b.py", "is_dir": false, "size": "812 bytes", "root": "app_folder", "client_mtime": "Fri, 28 Aug 2015 13:40:34 +0000", "icon": "page_white_code"}
Metatadata: {"revision": 5, "bytes": 295, "thumb_exists": false, "rev": "53bb68089", "modified": "Fri, 28 Aug 2015 13:40:35 +0000", "mime_type": "text/x-python", "path": "/c.py", "is_dir": false, "size": "295 bytes", "root": "app_folder", "client_mtime": "Fri, 28 Aug 2015 13:40:35 +0000", "icon": "page_white_code"}
End logging activities (#3) of user <uid>
我刪除了一個文件（C的.py），並在我的日誌文件，我看到：
User <uid> is doing something:
Metatadata: {"revision": 3, "bytes": 3952, "thumb_exists": false, "rev": "33bb68089", "modified": "Fri, 28 Aug 2015 13:40:32 +0000", "mime_type": "text/x-python", "path": "/a.py", "is_dir": false, "size": "3.9 KB", "root": "app_folder", "client_mtime": "Fri, 28 Aug 2015 13:40:32 +0000", "icon": "page_white_code"}
Metatadata: {"revision": 4, "bytes": 812, "thumb_exists": false, "rev": "43bb68089", "modified": "Fri, 28 Aug 2015 13:40:34 +0000", "mime_type": "text/x-python", "path": "/c.py", "is_dir": false, "size": "812 bytes", "root": "app_folder", "client_mtime": "Fri, 28 Aug 2015 13:40:34 +0000", "icon": "page_white_code"}
End logging activities (#2) of user <uid>
每次在目錄中有新的變化，我得到在該目錄中也未修飾的一個所有文件的列表。儘管沒有刪除的痕跡。 我以爲我只會收到修改或刪除的文件。
這是正常行爲嗎？ 謝謝。