gistfile1.js

export default function injectDependencies({dependencies}) {
  return({dispatch, getState}) => next => action => 
    typeof action === 'function' ?
      action({...dependencies, getState}) :
      next(action);
}

// action
export function fetchOrders(orderId) {
  return ({fetch}) => ({
    types: [
      FETCH_ORDERS,
      FETCH_ORDERS_SUCCESS,
      FETCH_ODERS_ERROR
    ],
    payload: {
      promise: fetch('/orders'),
      orderId
    }
  })
};

// declaration
const middleware = injectDependencies({fetch: window.fetch});
const finalCreateStore = compose(
  applyMiddlewares(middleware)
)(createStore);