actions.js

function makeAPIActions(entity) {
  const path = ["entities", entity]
  const EntityClass = Record({
    isRequesting: false,
    data: null,
    error: null,
  }, `Record$${entity}`)
  const defaults = new EntityClass()

  const actions = {
    request(state) {
      return state.updateIn(path, e => e.set("isRequesting", true))
    },

    response(state, data) {
      return state.setIn(path, defaults.set("data", data))
    },

    error(state, error) {
      return state.setIn(path, defaults.set("error", error))
    },

    reset(state) {
      return state.setIn(path, defaults)
    },
  }

  for (const actionName of Object.keys(actions)) {
    actions[actionName].displayName = `${entity}:${actionName}`
  }

  return actions
}