Integrating WPGraphQL with SvelteKit for authentication

1. Install WPGraphQL:
- Install the WPGraphQL plugin to enable GraphQL support for your WordPress site[1][2].

2. Configure WPGraphQL:
- Configure WPGraphQL to expose the necessary data and schema for your WordPress site[1][2].

3. Use GraphQL API:
- Use the GraphQL API provided by WPGraphQL to fetch data and perform queries in your SvelteKit application[1][2].

4. Create a GraphQL Client:
- Create a GraphQL client using a library like GenQL to handle GraphQL requests and generate a type-safe client[2].

5. Set up Authentication:
- Set up authentication using a library like Auth.js (formerly NextAuth.js) to handle user authentication and sessions[4].

6. Integrate with SvelteKit:
- Integrate the GraphQL client and authentication library with SvelteKit using the `@auth/sveltekit` package[4].

7. Handle Authentication Errors:
- Handle authentication errors and exceptions in your SvelteKit application[4].

By following these steps, you can integrate WPGraphQL with SvelteKit for authentication, providing a secure and efficient way to manage user authentication and data retrieval in your headless WordPress application.