const mongoose = require("mongoose") const schema = new mongoose.Schema({ name: { type: String, unique: true }, desp: String, position: Number, id: { type: String, unique: true }, authorID: { type: String } }); schema.methods.takeId = async function () { this.id = String(await model.count() || 0); return this; } const model = mongoose.model('category', schema); module.exports = model;