option-1.js

const MyWrapperMiddleware = store => next => action => {
  const state = store.getState()

  if (!state.isLoggedIn)
    return next(action)

  const pouchMiddleware = PouchMiddleware({
    path: state.currentPath,
    db,
    actions: {
      remove: doc => { return { type: types.DELETE_TODO, id: doc._id } },
      insert: doc => { return { type: types.INSERT_TODO, todo: doc } },
      batchInsert: docs => { return { type: types.BATCH_INSERT_TODOS, todos: docs } }
      update: doc => { return { type: types.UPDATE_TODO, todo: doc } },
    }
  })

  return pouchMiddleware(store)(next)(action)
}


export default MyWrapperMiddleware