//참고 : https://wikidocs.net/book/7059

import { NestFactory } from '@nestjs/core'
import { env } from 'process'
import { AppModule } from './app.module'
var cors = require('cors')

async function bootstrap() {
  const app = await NestFactory.create(AppModule)
  //Enable All CORS Requests : https://github.com/expressjs/cors#enable-cors-for-a-single-route
  var corsOptions = function (req, callback) {
    const origin = req.header('Origin')
    var corsOptions
    if (env.CORS_ALLOW_LIST.indexOf(origin) !== -1) {
      corsOptions = { origin: true } // reflect (enable) the requested origin in the CORS response
      console.log('Allowed Origin URL: ' + origin)
    } else {
      corsOptions = { origin: false } // disable CORS for this request
      console.log('Not Allowed Origin URL: ' + origin)
    }
    callback(null, corsOptions) // callback expects two parameters: error and options
  }
  app.use(cors(corsOptions))
  await app.listen(3000, function () {
    console.log(
      '[CORS-enabled->npm install -g webpack webpack-cli] web server listening on port 3000'
    )
  })
}
bootstrap()