Example redux file with constants, reducer and actions

redux.js

const namespace = 'shoud_be_unique_for_each_reducer'
const MERGE_REDUX_STATE_WITH 	= `${namespace}---MERGE_REDUX_STATE_WITH`
const RESET_REDUX_STATE  = `${namespace}---RESET_REDUX_STATE`
const initialState = {}

export default function reducer(state = initialState, action) {

  switch(action.type) {

    case MERGE_REDUX_STATE_WITH:
      return {
        ...state,
        ...action.data
      }
    case RESET_REDUX_STATE:
      return {
        ...initialState
      }
    default:
      return state

  }

}

export function mergeReduxStateWith( objectToMerge = {} ){
  return function( dispatch, getState ){
    dispatch({
      type: MERGE_REDUX_STATE_WITH,
      data : { ...objectToMerge }
    })
    return Promise.resolve()
  }
}

export function resetReduxState(){
  return function( dispatch, getState ){
    dispatch({ type: RESET_REDUX_STATE })
    return Promise.resolve()
  }
}