AWS Amplify Authentication

To achieve the behavior you're looking for with AWS Amplify Authentication in your Vue app, you can modify your code to always render the Main component, regardless of the authentication state. Here's how you can adjust your template:

<template>
  <v-app>
    <Authenticator>
      <template v-slot="{ user, signOut }">
        <v-main>
          <Main :myUser="user ? user : null" :sign-out="() => handleSignOut(signOut)" />
        </v-main>
      </template>
    </Authenticator>
  </v-app>
</template>

In this updated version:

1. We've removed the v-if and v-else conditions, ensuring that the Main component is always rendered.
2. We pass the user object to the Main component if it exists, otherwise we pass null.
3. The sign-out function is always passed to the Main component.

This approach allows your Main component to handle both authenticated and unauthenticated states. Inside the Main component, you can check if myUser is null to determine if the user is signed in or not, and adjust the displayed content accordingly.

The Authenticator component will still handle the authentication flow automatically. If the user is already signed in, it will remember and sign in automatically. If not, it will display the sign-in forms when necessary, but your Main component will still be rendered with a null user value.

Remember to handle the different states appropriately within your Main component, such as showing different content or functionality based on whether myUser is null or contains user information.

This setup gives you more flexibility in managing your app's content and behavior for both authenticated and unauthenticated users while still leveraging Amplify's authentication capabilities.

Sources
Fullstack TypeScript: Reintroducing AWS Amplify | Front-End Web & Mobile
How to Build Next.js Apps with Authentication using AWS Amplify and Auth0 | Front-End Web & Mobile