Testing a filter on a document on client-side

Question

Say I have a SON-document (typically fetched using a mongodb query, but not necessarily), and a query-filter expression (e.g. { \'x\': {\'$ne\': 5} }), is there a c

Answer 1

MongoDB's matcher algorithm is written in C++. You'd need at least a partial rewrite of the matcher in Python, which does not, to my knowledge, exist.

Answer 2

I found this interesting mongomock project.

The filter_applies() functions seems to be it.

def filter_applies(search_filter, document):
    """
    This function implements MongoDB's matching strategy over documents in the find()
    method and other related scenarios (like $elemMatch)
    """
    ...