old_contents: // @flow
  import * as t from './actionTypes';
  
  export const INITIAL_STATE = {
    data: {
      nodes: [],
      connections: []
    },
    search: '',
    view: []
  };
  
  const denamify = (name: string) => {
    return name.replace('_at_', '@').replace(/_/g, '.');
  };
  
  const denamifyNode = ({ nodes = [], connections = [], ...node }) => {
    return {
      ...node,
      connections: connections.map(({ target, source, ...connection }) => ({
        ...connection,
        target: denamify(target),
        source: denamify(source)
      })),
      nodes: nodes.map(({ name, displayName, nodes = [], ...node }) => ({
        ...node,
        name: denamify(name),
        displayName: denamify(displayName),
        nodes: nodes.map(denamifyNode)
      }))
    };
  };
  
  const reducer = (state: any = INITIAL_STATE, action: any) => {
    if (action.type === t.UPDATE_TRAFFIC_DATA) {
      const data = denamifyNode(action.data);
      console.log(data);
      return {
        ...state,
        data
      };
    }
  
    if (action.type === '@@router/LOCATION_CHANGE') {
      const { pathname } = action.payload;
      const view = pathname
        .replace(/\/traffic(\/?)/, '')
        .split('/')
        .filter(a => a.length > 0);
      if (view.toString() !== state.view.toString()) {
        return {
          ...state,
          view
        };
      }
    }
  
    if (action.type === t.UPDATE_TRAFFIC_SEARCH) {
      return {
        ...state,
        search: action.search
      };
    }
  
    return state;
  };
  
  export default reducer;
  
new_contents: // @flow
  import * as t from './actionTypes';
  
  export const INITIAL_STATE = {
    data: {
      nodes: [],
      connections: []
    },
    search: '',
    view: []
  };
  
  const denamify = (name: string) => {
    return name.replace('_at_', '@').replace(/_/g, '.');
  };
  
  const denamifyNode = ({ nodes = [], connections = [], ...node }) => {
    return {
      ...node,
      connections: connections.map(({ target, source, ...connection }) => ({
        ...connection,
        target: denamify(target),
        source: denamify(source)
      })),
      nodes: nodes.map(({ name, displayName, nodes = [], ...node }) => ({
        ...node,
        name: denamify(name),
        displayName: denamify(displayName),
        nodes: nodes.map(denamifyNode)
      }))
    };
  };
  
  const reducer = (state: any = INITIAL_STATE, action: any) => {
    if (action.type === t.UPDATE_TRAFFIC_DATA) {
      const data = denamifyNode(action.data);
      /*     console.log(data);*/
      return {
        ...state,
        data
      };
    }
  
    if (action.type === '@@router/LOCATION_CHANGE') {
      const { pathname } = action.payload;
      const view = pathname
        .replace(/\/traffic(\/?)/, '')
        .split('/')
        .filter(a => a.length > 0);
      if (view.toString() !== state.view.toString()) {
        return {
          ...state,
          view
        };
      }
    }
  
    if (action.type === t.UPDATE_TRAFFIC_SEARCH) {
      return {
        ...state,
        search: action.search
      };
    }
  
    return state;
  };
  
  export default reducer;
  
subject: Remove console.log