Type Members

1.  abstract class Action extends AnyRef

   Actions are stateless components that can be used to implement different uses cases, such as:

   Actions are stateless components that can be used to implement different uses cases, such as:

   • a pure function.
   • request conversion - you can use Actions to convert incoming data into a different format before forwarding a call to a different component.
   • publish messages to a Topic.
   • subscribe to events from an Event Sourced Entity.
   • subscribe to state changes from a Value Entity.
   • schedule and cancel Timers.

   Actions can be triggered in multiple ways. For example, by:

   • a gRPC service call.
   • an HTTP service call.
   • a forwarded call from another component.
   • a scheduled call from a Timer.
   • an incoming message from a Topic.
   • an incoming event from an Event Sourced Entity, from within the same service or from a different service.
   • state changes notification from a Value Entity on the same service.

   An Action method should return an kalix.scalasdk.action.Action.Effect that describes what to do next.

2.  trait ActionContext extends MetadataContext with ActionCreationContext
3.  trait ActionCreationContext extends Context
4.  trait ActionOptions extends ComponentOptions
5.  trait ActionProvider[A <: Action] extends AnyRef
6.  trait MessageEnvelope[T] extends AnyRef