RESTful API Using Node, Express, and sequelize

const express = require('express')
const app = express()
app.use(express.json()); 
app.use(express.urlencoded({extended:false}));
const port = 3000
const model = require('./models/index');

/* GET todo listing. */
app.get('/', function (req, res, next) {

    model.Todo.findAll({})
        .then(todos => res.json({
            error: false,
            data: todos
        }))
        .catch(error => res.json({
            error: true,
            data: [],
            error: error
        }));
});


/* POST todo. */
app.post('/', function (req, res, next) {

    const {
        title,
        description
    } = req.body;
    model.Todo.create({
        title: title,
        description: description
    })
        .then(todo => res.status(201).json({
            error: false,
            data: todo,
            message: 'New todo has been created.'
        }))
        .catch(error => res.json({
            error: true,
            data: [],
            error: error
        }));
});


/* update todo. */
app.put('/:id', function (req, res, next) {

    const todo_id = req.params.id;

    const { title, description } = req.body;

    model.Todo.update({
        title: title,
        description: description
    }, {
        where: {
            id: todo_id
        }
    })
        .then(todo => res.json({
            error: false,
            message: 'todo has been updated.'
        }))
        .catch(error => res.json({
            error: true,
            error: error
        }));
});


/* GET todo listing. */
app.delete('/:id', function (req, res, next) {

    const todo_id = req.params.id;

    model.Todo.destroy({
        where: {
            id: todo_id
        }
    })
        .then(status => res.json({
            error: false,
            message: 'todo has been delete.'
        }))
        .catch(error => res.json({
            error: true,
            error: error
        }));
});

app.listen(port, () => {
    console.log(`Example app listening on port ${port}`)
})