Step 10

Let's refactor our application to persist data. As the first step, we will update our model for "note."

Open Note.js file inside server/model folder. It currently has the following content:

const { v4: uuidv4 } = require("uuid");

class Note {
  constructor(title, text) {
    this._id = uuidv4();
    this.title = title;
    this.text = text;
  }
}

module.exports = Note;

Update the source code:

const mongoose = require("mongoose");

const NoteSchema = new mongoose.Schema({
  title: { type: String, required: true },
  text: { type: String, required: true },
});

const Note = mongoose.model("Note", NoteSchema);

module.exports = Note;

As can be seen, we are making a schema for notes document and linking that schema to a Mongoose Model called Note. Moreover, notice the required: true attribute in the NoteSchema. This attribute will help us with input validation.