How to use correct types when using the createAction helper?

[johannesjo]

There are places in my app (e.g. some effects and meta reducers) where I'd like to manually specify the action type. Before transitioning to the action creator functions I simply could use the action class at those places, but this is not possible any more. The only thing I managed to do is this:

const myActionAsVarOrFunctionParam: ({
          myPayload: {myPayloadProp: string};
        } & TypedAction<'ACTION_TYPE'>) =  myAction(...); 

Which clearly isn't helpful as it has no relation to the stuff defined with createAction(). Is there some way to derive or at least share a type when using the action creators? So something like this:

type MySharedType =  ({
          myPayload: {myPayloadProp: string};
        } & TypedAction<'ACTION_TYPE'>);

export const myAction: MySharedType = createAction(...);

[timdeschryver]

I think ReturnType<typeof actionName> is what you're looking for

[johannesjo]

This is great! Thank you very much!