MongoDB（mLab）文档查询：提取指定文档中的特殊语法与内容

Got it, here's a clear breakdown of the special syntax and key content pulled from your mLab MongoDB document:

1. MongoDB $date Operators #

MongoDB uses $date to store timestamp values in ISO 8601 format. The document contains two instances:

• Document creation time:

  {"$date": "2018-02-28T08:48:52.840Z"}
  

• Resume login token timestamp:

  {"$date": "2018-03-02T12:53:13.447Z"}
  

2. Bcrypt Password Hash #

The password is stored as a bcrypt hash (follows the standard $2a$ bcrypt prefix indicating the algorithm version):

$2a$10$.Kp4OY1fXfhaZ/garVlrLOy.bLWBbaXVHXeDkfmlkmlklkSkSMOEeke

3. Hashed Resume Login Token #

The resume service includes a base64-encoded hashed login token:

6B/Tpu8jQfg7XBiW5rMRsPt7+6H+HQd8AqbVQeKDu2I=

4. Relevant User Metadata #

• Verified Email: test@test.test (marked as verified: true)
• Assigned Role: hotel
• Push Notification ID: e1cf19d0-d63a-49df-bb10-cb7334c7ffb1

内容的提问来源于stack exchange，提问作者Taieb