Fastify Middleware

auth.middleware.fastify()

A Fastify preHandler hook that protects routes. It verifies the access token (from the Authorization header, or the auth cookie in cookie mode), attaches request.user and request.session, and refreshes the session. On failure it replies 401 with a JSON body.

// Register globally
fastify.addHook("preHandler", auth.middleware.fastify());
 
// …or per route
fastify.get(
  "/me",
  { preHandler: auth.middleware.fastify() },
  async (request) => request.user,
);