app.js

import React from 'react'
import {
  Provider,
  createStoreHook,
  createDispatchHook,
  createSelectorHook
} from 'react-redux'

const MyContext = React.createContext(null)
const MyOtherContext = React.createContext(null)

// Export your custom hooks if you wish to use them in other files.
export const useStore = createStoreHook(MyContext)
export const useDispatch = createDispatchHook(MyContext)
export const useSelector = createSelectorHook(MyContext)
export const useOtherStore = createStoreHook(MyContext)
export const useOtherDispatch = createDispatchHook(MyContext)
export const useOtherSelector = createSelectorHook(MyContext)


const myStore = createStore(rootReducer)
const myOtherStore = createStore(rootReducer)
export function MyProvider({ children }) {
return (
  <Provider context={MyContext} store={myStore}>
    <Provider context={OtherContext} store={myOtherStore}>
      {children}
    </Provider>
  </Provider>
  )
}