Named Scopes

Problem

Create one resource per request lifecycle.

Solution

const Request = scope('request');
const Session = token<{ id: string }>('Session');

root.factory(Session, [], () => ({ id: crypto.randomUUID() }), { lifetime: Request });

const request = root.createScope(Request);
const session = await request.resolve(Session);
await request.dispose();

Pitfalls

Resolving Session from root throws because no matching request scope owns it. A singleton cannot depend on Session; use matching scoped lifetime for that factory.

Related

• Usage Guide