Lucia Auth: Implement Custom Authentication

Implementing user authentication, which involves handling sensitive data like secrets and credentials, is a challenging task. While outsourcing authentication to third-party providers such as Clerk, Auth0, or OAuth services like Google and GitHub can simplify this process, it also introduces issues like syncing user data, configuration challenges, and potential costs. An alternative approach is to implement authentication in-house using tools like the Lucia authentication library, which manages user logic, sessions, and credentials. This text describes creating an authentication flow using Lucia and Convex, detailing steps such as specifying a database schema, configuring Lucia for server interactions, and developing functions for user sign-up and sign-in. It also covers the implementation of a front-end with React for session management and a login form, while offering insights into potential enhancements like email verification, password recovery, and integrating OAuth methods. The process emphasizes building a direct connection with the Convex database, avoiding third-party service configurations, and leveraging Convex's features for full-stack development.

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