Express Back-end with NeDB

const Datastore = require('nedb')
const express   = require('express')
const bparser   = require('body-parser')
const cors      = require('cors')
const db        = new Datastore({ filename: './tryxdb.json', autoload: true })
const app       = express()

app.use( cors() )
app.use( bparser.json({ type: 'application/*+json' }) )

app.get( '/:id/', (req, res) => {
    db.insert({ id: req.params.id }, (err, newDoc) => {
        db.find({}, (errget, docs) => {
            res.send( err
              ? err
              : `success: ${ req.params.id }<br>
                ${ docs.map( v =>  v._id + ': '+ v.id ).join('<br>') }`
            )
        })
    })
 } )

app.post( '/:cica', (req, res) => res.send( req.body.cica ) )

app.get( '/', (req, res) => {
    db.find({}, (err, docs) => {
        console.log( docs )
        res.send( 'gyökér<hr>'+docs.map( v =>  v._id + ': '+ v.id ).join('<br>') )
    })
} )

app.listen( 3000, () => console.log( `listening` ) )