ActionType is always never

[antony2809]

I'm trying to follow the tutorial, and I don't know why when making de declaration of my type Actions, is always return never. So this doesn't allows me to use the helpers.

I have this file structure

constants.ts

export const LOGIN = '@authentication/LOGIN';
export const LOGGED_IN = '@authentication/LOGGED_IN';
export const LOGOUT = '@authentication/LOGOUT';

actions.ts

import { createAction } from 'typesafe-actions';
import { LOGIN } from './constants';

export const login = createAction(LOGIN, action => {
  return (email: string, password: string) => action({email, password});
});

reducer.ts

import { ActionType, getType } from 'typesafe-actions';
import * as actions from './auth.actions';

export type AuthenticationAction = ActionType<typeof authenticationActions>; // Here it's always of type never

I'm doing something wrong, because I couldn't find the solution for this.

Regards

[piotrwitek]

Hey @antony2809 Which version are you using v4 or v5?

[antony2809]

V5

[piotrwitek]

Below usage is from v4:

export const login = createAction(LOGIN, action => {
  return (email: string, password: string) => action({email, password});
});

Please check the new temporary: v5.x.x API Docs

There is an announcement in the Readme:

[mitsuruog]

@antony2809 I had the same issue just now. I guess you are on the tutorial V4. (V5 tutorial seems WIP) please try on V4, then the above issue will be gone. or check out the migration guide.

• https://github.com/piotrwitek/typesafe-actions#v4xx-to-v5xx