Resolve by Type

Use component.ResolveType when the type uniquely identifies the dependency.

func (r *ReportRunner) Run(ctx context.Context) error {
	service, err := component.ResolveType[*ReportService](
		ctx,
		r.ctx.Container(),
	)
	if err != nil {
		return err
	}

	return service.Generate(ctx)
}

This is useful when a runtime boundary needs one concrete service and that type has exactly one registered component.

Check before resolving

Use component.CanResolveType when a dependency is optional.

if !component.CanResolveType[*ReportService](container) {
	return nil
}

If the dependency is required, resolve directly and return the error.