How to properly use invoked submachines?

[stanlrt]

Hey,

I have a machine that, in a specific state, invokes a submachine connectedMachine (as an actor).

When I instantiate the machine (useActor), snapshot.matches only accepts the state keys of the machine, not the submachine. What is the correct way? Should I also instantiate the submachine? I thought that's invoke's job?

---

I managed to get this far by randomly checking the keys:

But no matches in sight...

[davidkpiano]

Can you please share the full code for the machine?

It is probably that the full typing of the invoked child machine was not provided in setup(…).

[maksbialas]

@davidkpiano How exactly to do this? I can't find info about properly typing children in docs...

[yotov]

@maksbialas Do you mean the typing of the 'children' property in parent machine or the typing of the 'child' machine? If you mean the latter, it's just regular machine typing using the setup function.

[davidkpiano]

See here: https://stately.ai/docs/actors#actors-and-typescript