shows how a basic mongoose model should look like

mongoose-model.js

const mongoose = require("mongoose")

mongoose.connect("mongodb://127.0.0.1:27017/whatever-you-call", {
  useNewUrlParser: true,
  useCreateIndex: true,
  useUnifiedTopology: true,
  useFindAndModify: false
});

// connect to database
// create a schema
// then create a model
// then export the model

const userSchema = new mongoose.Schema(
  {
    name: {
      type: String,
      required: true
    },
    age: {
      type: Number
    }
  },
  {
    timestamps: true
  }
)

const User = new mongoose.model("User", userSchema)
module.exports = User