Configure Redux Store

configure-store.ts

import { AnyAction, applyMiddleware, compose, createStore } from 'redux';
import combinedReducers, { RootState } from '../reducers';
import thunk, { ThunkMiddleware } from 'redux-thunk';

const devToolsCompose = (window as any).__REDUX_DEVTOOLS_EXTENSION_COMPOSE__;
const composeEnhancers = (devToolsCompose !== null && devToolsCompose !== undefined)
    ? devToolsCompose
    : compose;

export type ThunkWithRootState = ThunkMiddleware<RootState, AnyAction>;

const reduxStore = (initialState: RootState = {} as RootState) => {
    return createStore(
        combinedReducers,
        initialState,
        composeEnhancers(
            applyMiddleware(thunk as ThunkWithRootState)
        ),
    );
}

export default reduxStore;