interface IPet {
    name: {type: mongoose.Types.String, required: true},
    type: {type: mongoose.Types.String, required: true}
}

export = IPet


interface IUser {
    email: string;
    password: string;
    displayName: string;
    pets: mongoose.Types.DocumentArray<IPetModel>
};

export = IUser;


import mongoose = require("mongoose");
import IUser = require("../../shared/Users/IUser");
interface IUserModel extends IUser, mongoose.Document { }

import mongoose = require("mongoose");
import IPet = require("../../shared/Pets/IPet");
interface IPetModel extends IPet, Subdocument { }

addNewPet = (userId: string, newPet: IPet){
    var _user = mongoose.model<IUserModel>("User", userSchema);
    let userModel: IUserModel = await this._user.findById(userId);
    let pet: IPetModel = userModel.pets.create(newPet);
    let savedUser: IUser = await pet.save();
}