Use mongodb exported bson instead of mongoose to import bson separately?

[zurmokeeper]

Prerequisites

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🚀 Feature Proposal

When using chrome's memory to do a snapshot analysis of node.js references, I found that the bson library takes up a lot of memory, about 3-4M (estimated), especially if the project may reference multiple bson libraries.

I see that mongodb already has an API for exporting bson, so why does mongoose have to reference bson separately?

If I use mongodb's bson, then I can reference a mongoose, and I don't need to bring in mongodb and its dependent bson libraries.

It would be more memory efficient.

Motivation

No response

Example

No response

[vkarpov15]

Mongoose imports bson directly rather than going through mongodb.BSON is for the browser build: we haven't tried recently, but importing the MongoDB driver makes it impossible for Mongoose to run in the browser.

We do try to keep the exact same version of bson as the MongoDB driver, so most package managers should automatically share the bson version between Mongoose and MongoDB.

Can you please run npm list bson and paste the output here? That would be helpful.

[zurmokeeper]

We do try to keep the exact same version of bson as the MongoDB driver, so most package managers should automatically share the bson version between Mongoose and MongoDB.

I understand this, but if you use pnpm, the result is different. pnpm doesn't raise the dependencies to the top level with npm/yarn, it's still in the node_modules of the dependencies, so there's a lot of copies of different versions of bson, and since pnpm is getting more and more popular, and I'm using pnpm for my project, I just found this out. The memory footprint under pnpm is still noticeable.

I think there are two ways to deal with the problem you mentioned about the browser not working:
1: Determine if it's a browser or node, and then load it separately.
2: I'd like to see what's causing the browser not to work, and see what I can do about it so that the browser can support it.

Not sure about your comments and suggestions?
@vkarpov15