How do I adapt this example to use Supabase instead of PocketBase?

You would need to create a custom auth adapter similar to the PocketBase one, implementing Supabase's authentication API methods. The project's modular structure supports this, but it requires additional development effort and understanding of both systems.

Is this SvelteKit auth example production-ready?

No, the README states it's very much a work in progress and recommends using it only as a reference. The cookie adapter is explicitly for demo purposes, so for production, you should build upon or replace it with a secure backend.

SvelteKit auth example vs using a library like Lucia?

This example is educational and shows custom implementation, while libraries like Lucia offer more features and maintenance. Choose this for learning SvelteKit patterns, but Lucia for production-ready solutions with less boilerplate.

How to add social login (like Google OAuth) to this setup?

The current implementation doesn't support OAuth; you would need to extend the auth adapters to handle OAuth flows, including callbacks and token exchange, which involves significant custom coding beyond the provided examples.

Can I use this with TypeScript and TailwindCSS as shown?

Yes, the project is pre-configured with TypeScript and TailwindCSS, so you can study how to integrate authentication seamlessly with these tools in a SvelteKit environment, as detailed in the tools list.

How to protect API routes in SvelteKit with this example?

The example secures API endpoints using Bearer token authorization headers; you can refer to the implementation in the hooks and adapters to see how tokens are validated on the server-side for protected routes.

Open-Awesome

SvelteKit Auth

TypeScript

A SvelteKit example app demonstrating multiple authentication backend implementations with protected routes and API endpoints.

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What is SvelteKit Auth?

SvelteKit Auth Example is a reference implementation demonstrating how to add authentication to SvelteKit applications. It provides working examples of different authentication backends, protected routes, and API security patterns that developers can study and adapt. The project solves the problem of understanding authentication patterns in the SvelteKit framework by providing concrete, working code examples.

Target Audience

SvelteKit developers who need to implement authentication in their applications and want reference implementations to study. Frontend developers building full-stack applications with SvelteKit who need authentication patterns.

Value Proposition

Developers choose this project because it provides clean, modular authentication examples specifically for SvelteKit with multiple backend options. The unique selling point is its abstraction layer that allows easy switching between different authentication adapters while maintaining consistent patterns.

Overview

An example SvelteKit app implementing a simple authentication system.

Use Cases

Best For

Learning authentication patterns in SvelteKit applications
Implementing protected routes and API endpoints in SvelteKit
Adding session management with token-based authentication
Integrating PocketBase as an authentication backend
Studying form action implementations for login and signup
Understanding how to abstract authentication layers for different backends

Not Ideal For

Production applications requiring out-of-the-box, maintained authentication libraries with active support
Teams needing advanced auth features like OAuth, social logins, or multi-factor authentication
Developers looking for drop-in authentication components without studying and adapting code
Non-SvelteKit projects, as this implementation is framework-specific

Pros & Cons

Pros

Modular Auth Abstraction

Implements a configurable adapter system in src/lib/auth/index.ts, allowing easy switching between cookie-based demo and PocketBase backends, as highlighted in the README's setup section.

SvelteKit-native Patterns

Uses SvelteKit's route groups for protected pages and form actions for login/signup, providing idiomatic examples that align with the framework's conventions.

Robust Error Handling

Integrates the neverthrow library to handle exceptions gracefully in authentication flows, improving code reliability as demonstrated in the implementation.

Live Demo Available

Hosts a working demo at sveltekit-auth-example.pages.dev, enabling developers to quickly test and understand the auth patterns without local setup.

Cons

Non-production Ready

Explicitly marked as a work in progress and demo-focused; the cookie adapter is insecure for production, requiring significant modifications for real-world use.

Limited Backend Options

Only supports cookie and PocketBase adapters, lacking integrations with popular services like Auth0, Supabase, or OAuth providers, which limits its utility.

Sparse Documentation

Provides minimal explanatory text beyond code comments; developers must rely on reading and understanding the source code to adapt it for their projects.

Frequently Asked Questions

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