A library that can help you create the redux actions & reducers easily. Inspired by NgRx.

The library needs redux & rxjs.

    npm install redux rxjs redux-rx-creator

You can now create a reducer like this.

interface PingPongState {
	pingCount: number;
	pongCount: number;
}

const initPingPongState: PingPongState  = {
	pingCount: 0,
	pongCount: 0
}

const pingPongReducer = createReducer(
	initState, 
	on(ping, state => ({...state, pingCount: state.pingCount + 1})),
	on(pong, state => ({...state, pongCount: state.pongCount + 1}))
);

You can use combineReducers directly to combine reducer created by createReducer.

export interface AppState {
    pingPongState: PingPongState;
}

const reducer = combineReducers<AppState>({
    pingPongState: pingPongReducer
});

You can create an action by using createAction.

const ping = createAction('PING');

If your action needs to pass some parameters, this will help you.

const pong = createAction('PONG', props<{payload: string}>());

I support you use redux-observable with this library. If you used or are using it, ofActionType operator will help you get the right action type in the rx stream.

const pingEpic = ($action: Observble<Action>) => $action.pipe(
    ofActionType(ping),
    map(() => pong({payload: 'received'}))
);