contiago-toolbar/app/containers/ToolbarContainer/reducer.js

One of the options for outputting content from contiago xml-server

import { fromJS } from 'immutable';
import {
  SET_SHOW_MODAL,
} from './constants';

const initialState = fromJS({
  showModal: false,
});

function toolbarContainerReducer(state = initialState, action) {
  switch (action.type) {
    case SET_SHOW_MODAL:
      return state.set('showModal', action.payload);
    default:
      return state;
  }
}

export default toolbarContainerReducer;