surveyor_indonesia_frontend/src/appredux/reducers.js

// import { parse, stringify } from 'flatted';
import { combineReducers } from 'redux';
import { persistReducer, createTransform } from 'redux-persist';
import storage from 'redux-persist/lib/storage';

// modules
import mapReducer from './modules/map/reducers';

const rootReducer = combineReducers({
	mapReducer
});

// export const transformCircular = createTransform(
//     // (inboundState, key) => JSON.stringify(inboundState),
//     // (outboundState, key) => JSON.parse(outboundState),
// 	(inboundState, key) => stringify(inboundState),
//     (outboundState, key) => parse(outboundState),
// )

 
// const SetTransform = createTransform(
//   // transform state on its way to being serialized and persisted.
//   (inboundState, key) => {
//     // convert mySet to an Array.
//     return { ...inboundState, mySet: [...inboundState.mySet] };
//   },
//   // transform state being rehydrated
//   (outboundState, key) => {
//     // convert mySet back to a Set.
//     return { ...outboundState, mySet: new Set(outboundState.mySet) };
//   },
//   // define which reducers this transform gets called for.
//   { whitelist: ['mapReducer'] }
// );

const persistConfig = {
	key: 'root',
	storage,
	// blacklist: [], // to be not persisted
	// transforms: [SetTransform]
	// transforms: [transformCircular]
};

// export default persistReducer(persistConfig, rootReducer);

export default rootReducer;