I have the following post document :

I wanted to remove key and value from objects and array of objects if key contains substring.

I wanted to remove key and value from objects and array of objects if key contains substring.

Here is my mongo sample collection,

My claim_rules collection looks like this

I’m trying to upsert a document OR update 2 fields in one round trip with an aggregation (or some variation of one of the many update methods) in mongodb.

I’m studying aggregation pipeline of MongoDB on Mongoose with Node.js Express

I’d like to convert following JSON from collection which I have in database already

so I have this bunch of code:

I m trying to merge a document to an existing collection. This document can be a new one or an existing one. If it exists, update with the new one. But there is one issue.