aigoncharov

const actionTypeJediCreateInit = 'jedi-app/jedi-create-init'
const actionTypeJediCreateSuccess = 'jedi-app/jedi-create-success'
const actionTypeJediCreateError = 'jedi-app/jedi-create-error'

const reducerJediInitialState = {
  loading: false,
  data: [],
  error: undefined,
}
const reducerJediMap = {

aigoncharov

import { createReducer } from 'redux-create-reducer'

const actionTypeJediCreateInit = 'jedi-app/jedi-create-init'
const actionTypeJediCreateSuccess = 'jedi-app/jedi-create-success'
const actionTypeJediCreateError = 'jedi-app/jedi-create-error'

const reducerJediInitialState = {
  loading: false,
  data: [],
  error: undefined,

aigoncharov

const actionTypeJediCreateInit = 'jedi-app/jedi-create-init'
const actionTypeJediCreateSuccess = 'jedi-app/jedi-create-success'
const actionTypeJediCreateError = 'jedi-app/jedi-create-error'

class ReducerJedi {
  initialState = {
    loading: false,
    data: [],
    error: undefined,
  }

aigoncharov

const METADATA_KEY_ACTION = 'reducer-class-action-metadata'

export const Action = (...actionTypes) => (target, propertyKey, descriptor) => {
  Reflect.defineMetadata(METADATA_KEY_ACTION, actionTypes, target, propertyKey)
}

aigoncharov

const getReducerClassMethodsWthActionTypes = (instance) => {
  // Get method names from class' prototype
  const proto = Object.getPrototypeOf(instance)
  const methodNames = Object.getOwnPropertyNames(proto).filter(
    (name) => name !== 'constructor',
  )

  // We want to get back a collection with action types and corresponding reducers
  const res = []
  methodNames.forEach((methodName) => {

aigoncharov

const getReducerMap = (methodsWithActionTypes) =>
  methodsWithActionTypes.reduce((reducerMap, { method, actionType }) => {
    reducerMap[actionType] = method
    return reducerMap
  }, {})

aigoncharov

import { createReducer } from 'redux-create-reducer'

const createClassReducer = (ReducerClass) => {
  const reducerClass = new ReducerClass()
  const methodsWithActionTypes = getReducerClassMethodsWthActionTypes(
    reducerClass,
  )
  const reducerMap = getReducerMap(methodsWithActionTypes)
  const initialState = reducerClass.initialState
  const reducer = createReducer(initialState, reducerMap)

aigoncharov

const reducerJedi = createClassReducer(ReducerJedi)

aigoncharov

// We move that generic code to a dedicated module
import { Action, createClassReducer } from 'utils/reducer-class'

const actionTypeJediCreateInit = 'jedi-app/jedi-create-init'
const actionTypeJediCreateSuccess = 'jedi-app/jedi-create-success'
const actionTypeJediCreateError = 'jedi-app/jedi-create-error'

class ReducerJedi {
  // Take a look at "Class field delcaratrions" proposal, which is now at Stage 3.
  // https://github.com/tc39/proposal-class-fields

aigoncharov

const cls = require('cls-hooked')
const uuidv4 = require('uuid/v4')

const clsNamespace = cls.createNamespace('app')

const clsMiddleware = (req, res, next) => {
  // req and res are event emitters. We want to access CLS context inside of their event callbacks
  clsNamespace.bind(req)
  clsNamespace.bind(res)