@burnsred/entity-duck

const action = {
  meta: {
    entity: '',
    id: 'uuid',
  },
  payload: undefined,
  promise: '',
  type: '@@Person/entities/PEOPLE_GET',
};

Configuration in client app

import { configureStore } from '@reduxjs/toolkit';
import { Map } from 'immutable';
import { combineReducers } from 'redux-immutable';

import {
  createDuckReducerFromRequires,
  duckMiddleware,
  filterEntityRequirements,
} from '@burnsred/entity-duck';
import { axiosInstance } from 'api';
import * as entities from 'entities';
import { settings } from 'settings';

// In dev, cross-check the barrel against all entity files on disk and warn
// about any Entity-with-duck that was forgotten in entities/index.ts.
// import.meta.glob must be a string literal — pass the result, not the pattern.
const requirements = filterEntityRequirements(
  entities,
  import.meta.env.DEV
    ? import.meta.glob('./entities/**/*.ts', { eager: true })
    : undefined,
);

// Alternatively, skip the barrel entirely — glob auto-discovers every entity:
// const requirements = collectEntityRequirements(
//   import.meta.glob('./entities/**/*.ts', { eager: true }),
// );

const rootReducerMap = createDuckReducerFromRequires(
  requirements,
  combineReducers,
);

export const store = configureStore({
  reducer: combineReducers(rootReducerMap),
  middleware: (getDefaultMiddleware) =>
    getDefaultMiddleware({
      // Immutable.js values are not serializable / plain objects
      serializableCheck: false,
      immutableCheck: false,
    }).concat(duckMiddleware({ settings, client: axiosInstance })),
  preloadedState: Map(),
  // https://github.com/reduxjs/redux-devtools/blob/main/extension/docs/API/Arguments.md
  devTools: import.meta.env.DEV && { trace: true, traceLimit: 100 },
});