Any ideas, contributions, improvements for MONGOOSE-LEAN-EXTENSION plugin

[SsekandiRaymond]

MONGOOSE-LEAN-EXTENSION plugin

Why is this mongoose plugin written??

Your mongoose query has .lean() but;

• ObjectId fields are still BSON types (ObjectId) that require manual conversion.
• The __v version key is often unnecessarily present in results.
• Deeply nested ObjectIds in subdocuments aren't stringified without additional effort

Why should you use it?

The plugins extends the .lean() functionality to;

• Auto-stringification of top-level _id fields
• Auto-removal of the __v field
• Optional stringification of nested ObjectId fields via path expressions (e.g. contributors._id)
• If plugin is used globally, mongoose.plugin(require("mongoose-lean-extension")), even populate results will include stringified _id

[vkarpov15]

Cool, thanks for writing this plugin 👍

For record._id = record?._id?.toString();, I'd advise against doing that because _id can be any type. You should check whether _id is an ObjectId in the schema, otherwise you might end up converting numbers to strings.

[SsekandiRaymond]

Thanks, let me update that

…

On Wed, Jun 4, 2025 at 7:29 PM Valeri Karpov ***@***.***> wrote: Cool, thanks for writing this plugin 👍 For record._id = record?._id?.toString();, I'd advise against doing that because _id can be any type. You should check whether _id is an ObjectId in the schema, otherwise you might end up converting numbers to strings. — Reply to this email directly, view it on GitHub <#15460 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BJDTIAWTEM32YDFR3HYQHMT3B4NGHAVCNFSM6AAAAAB6P4UJW6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTGMZXGAYDSNQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>