Lifecycle Hooks
Execution Workflow
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Choose the exact lifecycle stage needed for behavior injection.
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Keep hook logic deterministic and focused on cross-cutting concerns.
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Compose hook behavior with middleware order and exception handling.
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Verify hook side effects are observable and testable.
Implementation Rules
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Keep hooks lightweight to avoid latency inflation.
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Avoid embedding domain business rules in hooks.
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Make ordering dependencies explicit when multiple hooks interact.
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Ensure hook errors are handled without masking root cause.
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Do not substitute hooks for event emission when multiple decoupled side effects should react to one domain action.
Example Pattern
Pseudocode pattern: attach lifecycle hooks for cross-cutting behavior.
from litestar import Litestar
app = Litestar( route_handlers=[...], before_send=[...], after_exception=[...], )
Validation Checklist
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Confirm hook execution order matches design.
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Confirm hooks run for both success and error paths where intended.
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Confirm instrumentation and policy side effects are deterministic.
Cross-Skill Handoffs
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Use litestar-app-setup for startup/shutdown hooks, lifespan, and application resource ownership.
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Use litestar-events for decoupled in-process side effects with listeners and app.emit(...) .
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Use litestar-middleware for ASGI-wide policies that should wrap the whole pipeline.
Litestar References