Actors

Learn how to use actors and the actor model in XState and Stately Studio.

• Actors

  When you run a state machine, it becomes an actor: a running process that can receive events, send events and change its behavior based on the events it receives, which can cause effects outside of the actor.

• Invoke

  State machines can "invoke" one or many actors within a given state. The invoked actor will start when the state is entered, and stop when the state is exited. Any XState actor can be invoked, including simple Promise-based actors, or even complex machine-based actors.

• Spawn

  XState is based on the actor model. Spawned actors are managed by the state machine.

• Systems

  An actor system is a collection of actors that can communicate with each other. Actors can invoke/spawn other actors, which forms a natural hierarchy of actors that belong to the same system.

• Inspection

  Coming soon: inspection API