refactor

pkg/order/hooks.go

@@ -26,7 +26,7 @@ type Publisher interface {
 // still registered (so the editor lists it) but errors at run time — and since
 // hook errors never abort a flow, that failure is logged, not fatal.
 func RegisterEmitHook(reg *flow.Registry, pub Publisher) {
-	reg.Hook("amqp_emit", func(_ context.Context, st *flow.State, info flow.HookInfo, params json.RawMessage) error {
+	reg.HookWithMeta("amqp_emit", func(_ context.Context, st *flow.State, info flow.HookInfo, params json.RawMessage) error {
 		if pub == nil {
 			return fmt.Errorf("amqp_emit: no publisher configured")
 		}
@@ -54,5 +54,8 @@ func RegisterEmitHook(reg *flow.Registry, pub Publisher) {
 			"vars":  st.Vars,
 		})
 		return pub.Publish(p.Exchange, p.RoutingKey, body)
+	}, flow.CapabilityMeta{
+		Description:   "Publish the flow event payload to RabbitMQ.",
+		ExampleParams: json.RawMessage(`{"exchange":"order","routingKey":"order-events"}`),
 	})
 }