testing.py

from typing import List

from bson import ObjectId
from pymongo import MongoClient

from app import MONGO_URI


def get_all_users(user_id:str =None) -> List:
    client = MongoClient(MONGO_URI)
    db = client.crayonics
    collection = db['users']
    # Insert the document
    if user_id==None:
        results= collection.find()
        if results:
            result = [result for result in  results]
            return result
        
        client.close()
    else:
        result = collection.find_one(filter={"_id":ObjectId(user_id.strip())})
        return result



print(get_all_users(user_id="67c9b68678fbf39f4ed94e01"))