npm install @auth0/auth0-vue @capacitor/browser @capacitor/app
npx cap sync

import { createApp } from 'vue';
import { createAuth0 } from '@auth0/auth0-vue';
import { IonicVue } from '@ionic/vue';
import App from './App.vue';
import router from './router';

// Agent: read appId from capacitor.config.ts and replace this value
const packageId = "YOUR_PACKAGE_ID";

const app = createApp(App);

app.use(IonicVue);
app.use(router);
app.use(
  createAuth0({
    domain: import.meta.env.VITE_AUTH0_DOMAIN,
    clientId: import.meta.env.VITE_AUTH0_CLIENT_ID,
    useRefreshTokens: true,
    useRefreshTokensFallback: false,
    authorizationParams: {
      redirect_uri: `${packageId}://${import.meta.env.VITE_AUTH0_DOMAIN}/capacitor/${packageId}/callback`
    }
  })
);

router.isReady().then(() => {
  app.mount('#app');
});

<script setup lang="ts">
import { useAuth0 } from '@auth0/auth0-vue';
import { Browser } from '@capacitor/browser';
import { IonButton } from '@ionic/vue';

const { loginWithRedirect } = useAuth0();

const login = async () => {
  await loginWithRedirect({
    async openUrl(url: string) {
      await Browser.open({ url, windowName: "_self" });
    }
  });
};
</script>

<template>
  <ion-button @click="login">Log in</ion-button>
</template>

<script setup lang="ts">
import { onMounted, onUnmounted } from 'vue';
import { useAuth0 } from '@auth0/auth0-vue';
import { App as CapApp } from '@capacitor/app';
import { Browser } from '@capacitor/browser';
import { IonApp, IonRouterOutlet } from '@ionic/vue';

const { handleRedirectCallback } = useAuth0();

let urlOpenListener: any;

onMounted(async () => {
  urlOpenListener = await CapApp.addListener('appUrlOpen', async ({ url }) => {
    if (url.includes('state') && (url.includes('code') || url.includes('error'))) {
      await handleRedirectCallback(url);
    }
    await Browser.close();
  });
});

onUnmounted(() => {
  urlOpenListener?.remove();
});
</script>

<template>
  <ion-app>
    <ion-router-outlet />
  </ion-app>
</template>

<script setup lang="ts">
import { useAuth0 } from '@auth0/auth0-vue';
import { Browser } from '@capacitor/browser';
import { IonButton } from '@ionic/vue';

const domain = import.meta.env.VITE_AUTH0_DOMAIN;
// Agent: read appId from capacitor.config.ts and replace this value
const packageId = "YOUR_PACKAGE_ID";
const logoutUri = `${packageId}://${domain}/capacitor/${packageId}/callback`;

const { logout } = useAuth0();

const doLogout = async () => {
  await logout({
    logoutParams: {
      returnTo: logoutUri
    },
    async openUrl(url: string) {
      await Browser.open({ url, windowName: "_self" });
    }
  });
};
</script>

<template>
  <ion-button @click="doLogout">Log out</ion-button>
</template>