How to add object from mongodb database?

Question

JavaScript

In general, I have a script that calls db.get().collection('test').updateOne() passing in the ID I need and the object that I need to add to the "chatlog" key. I tried to implement it in different ways, but I could not make the object exactly ADDED, the .updateOne method just overwrites it. It looks like this:

{
  {
    "_id": 123123,
    "chatlog": {
      "971": {
        "msg": "message",
        "attachments": [
          
        ],
        "date": 1503212258
      }
    }
  }

After I execute the script passing the new "chatlog" with a different id, I just have the old one removed and replaced with the new one.

"972": {
  "msg": "message2",
  "attachments": [
  
  ],
  "date": 1503432654
}

There are thoughts on how to do this using node.js tools, that is, first get the base, then add a new chatlog to it using .push and send the result. But it seems to me that this is not done and there is a better way.
I just started learning mongodb, I only learned the basics, so don't shout at me too much)

Answer 1

https://docs.mongodb.com/manual/reference/operator...