Middleware · Health · Lifecycle

1. Setup

Use the Application kernel so middleware, health, and lifecycle register together:

app = Application(".").with_framework_providers().create()

2. Middleware groups

MiddlewareManager lets you name stacks (for example web, api, auth) and attach them to routes. Keep cross-cutting concerns (logging, auth headers, CORS wrappers) out of every controller.

3. Health checks

4. Lifecycle hooks

• boot — app starting
• shutdown — app stopping
• before / after — around a request
• exception — centralized error observation

Use hooks for metrics, audit logs, or cleanup — not for primary business rules (those stay in services).