redux + saga (fix to getDefaultMiddleware is deprecated)

store.ts

import createSagaMiddleware from 'redux-saga';
import { configureStore } from '@reduxjs/toolkit';

import saga from './saga';
import { reducer as app } from 'app/app.slice';
import { counterSlice } from 'core/features/counter/counter.slice';

const sagaMiddleware = createSagaMiddleware();

export const store = configureStore({
  reducer: {
    app,
    counter: counterSlice.reducer,
  },
  middleware: (getDefaultMiddleware) =>
    getDefaultMiddleware().concat(sagaMiddleware),
});

sagaMiddleware.run(saga);