Action type doesn't support Promise as return type

[Mengqi Zhu]

I am using React + Typescript + redux-zero. But I experienced some difficulties when trying to make async calls in actions. I think the error is becauseAction needs to return Partial<State> and it doesn't allow Promise:

export type Action<S> = (state: S, ...args: any[]) => Partial<S>;

(https://github.com/redux-zero/redux-zero/blob/master/src/types/index.ts#L3)

In the following code, I am returning a Promise<State>:

const actions = (store: Store<GlobalState>) => ({    
    asyncGetUsers: (state: GlobalState) => {
        return client
            .get("/users")
            .then(payload => ({ users: payload }))
            .catch(error => ({ error }));
    }
});

That results in an error that says:

Type '(state: GlobalState) => Promise<{ users: User[] }>' is not assignable to type 'Action<GlobalState>'.
Type 'Promise<{ users: User[] }>' has no properties in common with type 'Partial<GlobalState>'.

Let me know if my understanding is correct. If it indeed is because of Action doesn't support Promise, what do you suggest to do instead? Thank you.

[Matheus Lima]

Hey @treeforever

Thank you for letting me know about this, and sorry about the delay.
Would you be willing to open a PR fixing this?