singleDefinitionLogging.txt

function logger({ getState }) {
  return (next) => (action) => {
    console.log('will dispatch', action)
    return returnValue
  }
}

const initialState = {}
const enhancers = []
const middleware = [
  logger,
  thunk,
  routerMiddleware(history)
]

const composedEnhancers = compose(
  applyMiddleware(...middleware),
  ...enhancers
)

const store = createStore(
  rootReducer,
  initialState,
  composedEnhancers
)

export default store