cra-template-jam/template/src/app/store.ts

A quick start Create React App template with React Router, Redux Toolkit, TypeScript, Styled Components and custom ESlint configurations

import { configureStore, ThunkAction, Action } from '@reduxjs/toolkit';
import counterReducer from '../features/counter/counterSlice';
import { api } from './api';

export const store = configureStore({
    reducer: {
        counter: counterReducer,
        [api.reducerPath]: api.reducer,
    },
    middleware: getDefaultMiddleware => getDefaultMiddleware().concat(api.middleware),
});

export type AppDispatch = typeof store.dispatch;
export type RootState = ReturnType<typeof store.getState>;
export type AppThunk<ReturnType = void> = ThunkAction<
  ReturnType,
  RootState,
  unknown,
  Action<string>
>;