Create store.js

app/store/store.js

@@ -0,0 +1,17 @@
+import { createStore, combineReducers, applyMiddleware } from 'redux';
+import thunk from 'redux-thunk';
+import { walletReducer } from '../reducers/walletReducer';
+import { transactionReducer } from '../reducers/transactionReducer';
+
+const rootReducer = combineReducers({
+  wallet: walletReducer,
+  transactions: transactionReducer,
+});
+
+const initialState = {};
+
+const middleware = [thunk];
+
+const store = createStore(rootReducer, initialState, applyMiddleware(...middleware));
+
+export default store;