server.js

const express = require("express"),
      app = express(),
      bodyParser = require('body-parser'),
      users = require('../mocks/users.json').users,
      notes = require('../mocks/notes.json').notes

app.use(function (req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
    next();
})

    .use(bodyParser.json())

    .use(express.static('../public'))

    .get('/users', function (req, res) {
    res.send(getNotesbyUser())
});

// map
// filter
// reduce
// forEach

// push // pop

// slice
// splice

function getNotesbyUser() {
    return users.map((user) => {
        user.notes = notes.filter((note) => note.userId === user._id)
        return user
    })
}

getNotesbyUser()

let server = app.listen(9000, function () {
    let host = server.address().address;
    let port = server.address().port;
    console.log("Adresse du serveur : http://localhost:9000", host, port);
});