What is the significance of mapping transformations on objects within MongoDB?

I encountered an issue.

Every time I try to create a map in MongoDB, for example a shop,

        guildID: id,
        ownerID: owner_id,
        _premium: 0,
        Moderation:{
            auto:false,
            prefix:'k!',
            muterole:0,
            language: preferredLocale
        },
        Economy: {
            shop:new Map(),
            upXP:100,
            bonus:50,
            money:3,
            xp:5
        },
        options:{
            boxes:false
        }

It creates an object like this:

https://i.sstatic.net/40Trm.png

Is there a way to resolve this issue?

I am using MongoDB (not mongoose).

javascriptdatabasetypescriptmongodbobject

Answer №1

MongoDB stores documents in BSON format, which currently does not have support for Map objects. There is an unresolved issue on GitHub aiming to address this limitation and provide functionality similar to what you're seeking, but it has not been implemented yet.

If you need to work with Map objects when retrieving data from MongoDB, you can create a custom deserializer to convert certain properties into the desired entities. For example:

class Economy {
  
    deserialize(data) {
        ...
        this.shop = new Map<string, Shop>(Object.entries(data.shop));
        ...
    }
}

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