Scalable Frontend - The State Layer - Article Reducer

scalable-front-end-the-state-layer-articles-reducer.js

const articlesReducer = (state = initialState, action) => {
  switch (action.type) {
    case 'RECEIVE_DATA':
      const articles = replaceRelationById(action.data, 'author')

      return {
        ...state,
        byId: byId(articles),
        allIds: allIds(articles),
      }
    default:
      return state
  }
}

const authorsReducer = (state = initialState, action) => {
  switch (action.type) {
    case 'RECEIVE_DATA':
      const authors = extractRelation(action.data, 'author')

      return {
        ...state,
        byId: byId(authors),
        allIds: allIds(authors),
      }
    default:
      return state
  }
}