Redux Typekit API

store.ts

import { createAction, createAsyncAction, createReducer, ActionReturnTypes, createSelector } from 'redux-typekit'
import { Issue } from '@mm-backend/issues/model'

export const selector = 'issues'

export const actions = {
  add: createAction<'issues/ADD', { issue: Issue }>('issues/ADD'),
}

export type actions = ActionReturnTypes<typeof actions>

interface State {
  byId: { [id: string]: Issue }
}

const initialState: State = {
  byId: {},
}

export const reducer = createReducer<State, actions>(initialState, (state, action) => {
  switch (action.type) {
    case actions.add.type: {
      state.byId[action.issue.id] = action.issue
      break
    }
  }
})

const storeSelector = (state: Record<typeof selector, State>) => state[selector]

export const selectors = {
  getById: (id: string) => createSelector(storeSelector, (store) => store.byId[id]),
}