feat: update Local function to accept any type for key parameter

contracts/events.go

@@ -4,11 +4,15 @@ import "github.com/ThreeDotsLabs/watermill/message"
 
 type EventHandler interface {
 	Topic() string
-	PublishToTopic() string
+	Channel() Channel
+	PublishTo() (Channel, string)
 	Handler(msg *message.Message) ([]*message.Message, error)
 }
 
+type Channel string
+
 type EventPublisher interface {
 	Topic() string
+	Channel() Channel
 	Marshal() ([]byte, error)
 }

fen/bind.go

@@ -14,7 +14,7 @@ func File[T any](key string) func(fiber.Ctx) (*multipart.FileHeader, error) {
 	}
 }
 
-func Local[T any](key string) func(fiber.Ctx) (T, error) {
+func Local[T any](key any) func(fiber.Ctx) (T, error) {
 	return func(ctx fiber.Ctx) (T, error) {
 		v := fiber.Locals[T](ctx, key)
 		return v, nil