ដើម្បី​បញ្ចូល​ទិន្នន័យ​ទៅ​ក្នុង​តារាង​ទិន្នន័យ យើង​ត្រូវ​ធ្វើ​ដូច​ខាង​ក្រោម​នេះ៖

import express from 'express'
import path from 'path'

const app = express()
const port = process.env.PORT || 3000
const __dirname = path.resolve()
 
import index from './routes/index.js'
import backend from './routes/backend.js'
import db from './models/connectSQLite.js'

app.use('/',function(req,res,next){
    req.db = db
    req.__dirname = __dirname
    next()
})

app.set('views', path.join(__dirname, 'views'))
app.set('view engine', 'ejs')
app.use(express.static(path.join(__dirname, 'public')))
app.use(express.urlencoded({extended:false}))
app.use(express.json())
                                  
app.use('/',index) 
app.use('/backend',backend) 

app.listen(port,function(){
    console.log(`This application is listening to the port: ${port}`)
})

/* ./routes/index.js */
import express from 'express'
import insertData from '../models/insertData.js'
const index = express.Router()

index.use(insertData)

index.get('/',(req,res)=>{
    res.render('base',req.data)
})
 
export default index

//models/insertData.js

function insertData(req,res,next){
    let sql = `INSERT INTO users(username,gender) VALUES(?,?)`
    req.db.run(sql, ['Sokhavuth','Male'], function(err){
        if (err) {
          return console.log(err.message)
        }
        // get the last insert id
        req.data = {}
        req.data.message = `A row has been inserted with rowid ${this.lastID}`
        next()
    })
}

export default insertData