Stable API strict and $graphLookup

Working with Data
,
1

Hi folks,

As per my understanding, only the commands listed in Stable API Changelog should be accepted when we connect to the server with Stable API in strict mode, but in my tests, I can run $graphLookup in both mongo shell and pymongo without any problems. Is it by design?

#!/usr/bin/env python3

import pymongo
from pymongo import MongoClient
from pymongo.server_api import ServerApi
import pprint

uri = "mongodb://testuser:XXXX@localhost:27047"

pipeline = [
  { "$match": {"name": "wlt"} },
  {
    "$graphLookup": {
        "from": "employees",
        "startWith": "$reportsTo",
        "connectFromField": "reportsTo",
        "connectToField": "name",
        "as": "reportingHierarchy",
        "maxDepth": 1
    }
  }
]

with MongoClient(uri, server_api=ServerApi("1", strict=True, deprecation_errors=True)) as client:
  database = client["test"]
  collection = database["employees"]
  pprint.pprint(list(collection.aggregate(pipeline)))

MongoDB v5.0.23
Pymongo v4.1.1
Mongo Shell v2.2.6

2

Thanks for pointing this out. Yes $graphLookup is included in the Stable API. We’ve filed an internal issue to update the docs page to better mention which aggregation stages are included.

3

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