Webpack Alias path is not working on apollo-server

[IttisutBm]

vue-cli default config for webpack is including this.

config.resolve.alias.set('@', path.resolve(__dirname, './src/'))

so I use @ in import on the client-side. It is working perfectly

import { Role } from '@/utils/enum'

but when I use it in apollo-server (i use it in data-sources.js)
It is not working. I got error msg like this.

projectDir\node_modules\@vue\cli-service\bin\vue-cli-service.js
    at Object.<anonymous> (projectDir\apollo-server\data-sources.js:1) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    'projectDir\\apollo-server\\data-sources.js',
    'projectDir\\node_modules\\vue-cli-plugin-apollo\\utils\\load.js',
    'projectDir\\node_modules\\vue-cli-plugin-apollo\\graphql-server\\index.js',
    'projectDir\\node_modules\\vue-cli-plugin-apollo\\index.js',
    'projectDir\\node_modules\\@vue\\cli-service\\lib\\Service.js',
    'projectDir\\node_modules\\@vue\\cli-service\\bin\\vue-cli-service.js'
  ]
}

Is it a bug?
If not, pls tell me how to config alias for apollo-server.