Computed Attribute API

Hello I read the documentation, I can add the calculated attributes, edit etc through the API, but I didn't find how to Define this calculated Attribute to a Device, User or Group through the API.

I've already searched for the source code and I didn't find it either.

Have you looked at how the official web app does it?

Yes I saw the web app, I searched the JS but without understanding how it does the POST, in ComputedAttribute.js AllComputedAttributes.js etc

Why do you need to search JS? You just need to look at the actual requests.

You need to find out the attribute id and the vehicle id.
In possession of these two pieces of information and just make a POST or DELETE

Note: "Anton Tananaev" because if I do a POST 2 times with the same data, in the database the record is duplicated instead of replacing the existing one? Any compatibility with other banks?

let ATTRIBUTE_ID = 1, DEVICE_ID = 1;
let USER = "test", PASSWORD = "test";

$.ajax({
  url: `${URL_API}/api/permissions`,
  method: "DELETE",
  headers: {
    "content-type": "application/json",
    "authorization": "Basic " + btoa(`${USER}:${PASSWORD}`)
  },
  processData: false,
  data: JSON.stringify({attributeId: ATTRIBUTE_ID, deviceId: DEVICE_ID)
}).always(() => {
  $.ajax({
    url: `${URL_API}/api/permissions`,
    method: "POST",
    headers: {
      "content-type": "application/json",
      "authorization": "Basic " + btoa(`${USER}:${PASSWORD}`)
    },
    processData: false,
    data: JSON.stringify({attributeId: ATTRIBUTE_ID, deviceId: DEVICE_ID)
  });
}) 

Fixing an error in the above code: (deviceId first / the order of the parameters affects the result)

data: JSON.stringify({deviceId: DEVICE_ID, attributeId: ATTRIBUTE_ID})

I couldn't edit