How to add a modifier to a nested document with mongodb

[Prasad_Saya]

@Dimer_Bwimba_Mihanda

I want to push into comment.replies a new reply if the comment and the post exists. How to Update or Insert object into a nested array with conditions?

This means you already know the post id (or some other identifier), and the comments’s id. It is an update operation on the post collection. For this you need to use arrayFilters option for an update method.

Here are some examples of updating a nested array based upon conditions:

• MongoDB Manual - Update Specific Elements of an Array of Documents
• Nested arrays how to do query and update?
• How to add a json in a nested array of a mongodb document using Spring?