Request scope

A “request scope” is the most common unit of work for DI in web apps.

The pattern

1. Pick a scope name (commonly "request").

2. Register request-local services with lifetime=Lifetime.SCOPED and scope="request".

3. Enter the scope for each request and resolve your handler/service graph inside it.

Example (runnable)

See the full script:

See the runnable script in Patterns (HTTP request handler pattern section).

Notes

• Scoped services are reused within a single request, but not across requests.

• Use generator/async-generator factories for cleanup (DB sessions, connections). See Resources (cleanup).