text: // call express framework
  const express = require('express')
  
  // call mongoose
  const mongoose = require('mongoose')
  
  // get our club 's database
  const url = 'mongodb+srv://admin:wYIv0fY4FwPGmO0A@dsc.fyw2j.mongodb.net/newbietest?retryWrites=true&w=majority'
  const app = express()
  
  // connect to the remote database of our club :)
  mongoose.connect(url, {useNewUrlParser:true})
  
  // tell express that we want to use JSON
  app.use(express.json())
  
  // connect to the server:
  mongoose.connection.on('open', () => {
      console.log('Ket noi dc rui` !!')
  })
  
  app.listen(5000, () => {
      console.log("Server started")
  })
  
  // declare routers:
  const championRouter = require('./routers/champions')
  
  // mention the routers:
  app.use('/champions',championRouter)