Best MVC architecture to build rest API with Express JS [closed]

I practice to build a simple rest api using express js. It’s running well but i’m not really sure this follow the MVC architecture.

please give me a feedback to improve my code.

here’s my code

server.js
running my server from here:

const express = require('express');
const cors = require('cors');
const { getAllNotes, postNewNote, updateNoteById, deleteNoteById, notFoundError, getNoteByTitle } = require('./controllers/controllers.js');
const app = express();
const port = 3001;

app.use(express.json());
app.use(cors());

app.get('/', (req, res) => {
    res.send({
        response: req.query.tes
    });
});

app.route('/notes')
    .get(getAllNotes)
    .post(postNewNote)
    .put(updateNoteById)
    .delete(deleteNoteById);

app.route('/notes/:title')
    .get(getNoteByTitle);

app.route('*')
    .all(notFoundError);

app.listen(port, () => console.log(`app listening on http://localhost:${port}`));

and here’s my db connection code.

db.js

const mysql = require('mysql');

const conn = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    password: 'root',
    database: 'daily_task'
});

conn.connect( err => {
    if (err) throw err;
    console.log('Success connected to db');
});

module.exports = conn;

controller.js

const { nanoid } = require('nanoid');
const sql = require('../db/db.js');

const getAllNotes = (req, res, next) => {
    const getAllQuery = 'SELECT * FROM notes';

    sql.query(getAllQuery, (err, result) => {
        if (err) {
            res.send({
                status: 'ERROR',
                error: 'Failed to GET notes'
            });
            next(err);
        } else {
            res.send({ 
                notes: result
            });
        }
    });
};

const getNoteByTitle = (req, res, next) => {
    const getNoteByIdQuery = `SELECT * FROM notes WHERE title LIKE '%${req.params.title}%'`;

    sql.query(getNoteByIdQuery, (err, result) => {
        if (err) {
            res.send({
                status: 'ERROR',
                error: 'Failed to GET note'
            });
            next(err);
        } else {
            res.send({
                notes: result
            });
        }
    });
};

const postNewNote = (req, res, next) => {
    const id = nanoid(16);
    const postNoteQuery = `INSERT INTO notes (id, title, note) VALUES ('${id}', '${req.body.title}', '${req.body.note}')`;
    sql.query(postNoteQuery, (err) => {
        if (err) {
            res.send({
                status: 'ERROR',
                error: 'Failed to POST notes'
            });
            next(err);
        } else {
            res.send({
                id: req.body.id,
                title: req.body.title,
                note: req.body.note,
                status: 'ADDED',
            });
        }
    });
};

const updateNoteById = (req, res, next) => {
    const updateNoteByIdQuery = `UPDATE notes SET title = '${req.body.title}', note = '${req.body.note}' WHERE id = '${req.body.id}'`;
    sql.query(updateNoteByIdQuery, (err) => {
        if (err) {
            res.send({
                status: 'ERROR',
                error: 'Failed to UPDATE notes'
            });
            next(err);
        } else {
            res.send({
                id: req.body.id,
                title: req.body.title,
                note: req.body.note,
                status: 'UPDATED'
            });
        }
    });
};

const deleteNoteById = (req, res, next) => {
    const deleteNoteByIdQuery = `DELETE FROM notes WHERE id = '${req.body.id}'`;
    sql.query(deleteNoteByIdQuery, (err) => {
        if (err) {
            res.send({
                status: 'ERROR',
                error: 'Failed to DELETE notes'
            });
            next(err);
        } else {            
            res.send({
                id: req.body.id,
                status: 'DELETED'
            });
        }
    });
};

const notFoundError = (req, res) => {
    res.status(404).send({
        response: 'Not Found'
    });
};

module.exports = {
    getAllNotes,
    getNoteByTitle,
    postNewNote,
    updateNoteById,
    deleteNoteById,
    notFoundError
};

please give me some review for my first build rest api with express js. any input and feedback would be appreciated.