text: const Koa = require('koa')
  const app = new Koa()
  
  app.use(async (ctx) => {
  	let url = ctx.url
  
  	let request = ctx.request
  	let req_query = request.query
  	let req_querystring = request.quertstring
  
  	let ctx_query = ctx.query
  	let ctx_querystring = ctx.quertstring
  
  	ctx.body = {
  		url,
  		req_query,
  		req_querystring,
  		ctx_query,
  		ctx_querystring
  	}
  })
  
  app.listen(3000, () => {
  	console.log('server is starting at port 3000')
  })
  