Binary.createFromBase64 Type

[tillwf]

Hello,

I have the kind of document:

  {
    _id: ObjectId('656f001650078dc1d50872ed'),
    created_at: ISODate('2023-12-05T10:48:54.641Z'),
    user_id: Binary.createFromBase64('MjkyMmZkYmUtOTM1Yi0xMWVlLTlkMjEtN2U2NjQwYmEyNGEw', 4),
  }

and I want to make queries on this collection. So I created this file:

import base64
import uuid

from datetime import datetime
from typing import Optional
from beanie import Document, init_beanie
from beanie import BsonBinary
from pydantic import BaseModel, Field
from bson import Binary, ObjectId
from pymongo import MongoClient


# HomeTracker document class
class HomeTrackers(Document):
    id: ObjectId = Field(default_factory=ObjectId, alias="_id")
    created_at: datetime
    user_id: BsonBinary

    class Settings:
        name = "collection_name"

    class Config:
        arbitrary_types_allowed = True

but when I make a query I get this error:

bson.errors.InvalidBSON: invalid length or type code

and if I remove the user_id field, everything works.

Is the type Binary.createFromBase64(..., 4) supported by beanie?

[tillwf]

The problem seems to come from the encoding itself:
https://stackoverflow.com/questions/77680833/load-mongo-binary-createfrombase64-field-in-python