firstName: { type: String },
lastName: { type: String },
email: { type: String },
decks: [{ type: Schema.Types.ObjectId, ref: "Deck" }],

api.mydomain.com/v1/users

api.mydomain.com/v1/users/:userId

api.mydomain.com/v1/users

api.mydomain.com/v1/users/:userId

api.mydomain.com/v1/users/:userId

name: {type: String,},
description: {type: String},
total: {type: Number, default: 0},
owner: {
    type: Schema.Types.ObjectId,
        ref: "User",
}

api.mydomain.com/v1/users/:userId/decks

api.mydomain.com/v1/decks

api.mydomain.com/v1/decks/:deckId

api.mydomain.com/v1/users/:userId/decks

api.mydomain.com/v1/decks/:deckId

api.mydomain.com/v1/decks/:deckId

api.mydomain.com/v1/decks/:deckId