[Answer]-How yo query a string with an ObjectID in subquery 19 December 2023 by thecoderscamp.com 1👍 You can use str(objectid) to turn an ObjectId into it’s hexadecimal representation. http://api.mongodb.org/python/1.7/api/pymongo/objectid.html 👤LeoTietz [Answer]-Filtering rest framework serializer output Source:stackexchange.com