const API_BASE_URL = 'http://localhost:12450' module.exports = { devServer: { proxy: { '/api': { target: API_BASE_URL, ws: true }, '/emoticons': { target: API_BASE_URL } } }, chainWebpack: config => { const APP_VERSION = `v${process.env.npm_package_version}` config.plugin('define') .tap(args => { let defineMap = args[0] let env = defineMap['process.env'] env['APP_VERSION'] = JSON.stringify(APP_VERSION) return args }) } }