nuxt.config.js

export default {
  // Target: https://go.nuxtjs.dev/config-target
  target: 'static',

  // Global page headers: https://go.nuxtjs.dev/config-head
  head: {
    title: 'Firebase Auth',
    htmlAttrs: {
      lang: 'en'
    },
    meta: [
      { charset: 'utf-8' },
      { name: 'viewport', content: 'width=device-width, initial-scale=1' },
      { hid: 'description', name: 'description', content: '' },
      { name: 'format-detection', content: 'telephone=no' }
    ],
    link: [
      { rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' },
      {
        href: 'https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css',
        rel: 'stylesheet',
        integrity: 'sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC',
        crossorigin: 'anonymous',
      },
    ]
  },

  // Global CSS: https://go.nuxtjs.dev/config-css
  css: [
  ],

  // Plugins to run before rendering page: https://go.nuxtjs.dev/config-plugins
  plugins: [
  ],

  // Auto import components: https://go.nuxtjs.dev/config-components
  components: true,

  // Modules for dev and build (recommended): https://go.nuxtjs.dev/config-modules
  buildModules: [
  ],

  // Modules: https://go.nuxtjs.dev/config-modules
  modules: [
    '@nuxtjs/firebase',
    '@nuxtjs/axios',
  ],

  // Build Configuration: https://go.nuxtjs.dev/config-build
  build: {
  },


  firebase: {
    config: {
      apiKey: process.env.FIREBASE_API_KEY,
      authDomain: process.env.FIREBASE_AUTH_DOMAIN,
      projectId: process.env.FIREBASE_PROJECT_ID,
      storageBucket: process.env.FIREBASE_STORAGE_BUCKET,
      messagingSenderId: process.env.FIREBASE_MESSAGING_SENDER_ID,
      appId: process.env.FIREBASE_APP_ID,
      // measurementId: '<measurementId>'
    },
    services: {
      auth: {
        persistence: 'local', // default
        initialize: {
          // onAuthStateChangedMutation: 'auth/ON_AUTH_STATE_CHANGED_MUTATION',
          onAuthStateChangedAction: 'auth/onAuthStateChangedAction',
          subscribeManually: false,
        },
        ssr: false, // default
        // emulatorPort: 9099,
        // emulatorHost: 'http://localhost',
      },
    },
  },
}