App.jsx

// React and other imports...
import { connect } from 'react-redux';
import { viewAll, searchPost } from './actions';

class App extends Component {
  // Code for our App component...
}

// Mapping state to props
function mapStateToProps(state){
  return {
    posts: state
  }
}

// Connecting the App component
export default connect(mapStateToProps, { viewAll, searchPost })(App);

index.js

// React and other imports...
import App from './App';
import { Provider } from 'react-redux';
import { createStore } from 'redux';
import reducer from './reducers';
import registerServiceWorker from './registerServiceWorker';

// Creating a store
const store = createStore(reducer);

// Wrapping our app inside a provider
ReactDOM.render(
  <Provider store={store}>
    <App />
  </Provider>,
  document.getElementById('root'));
registerServiceWorker();