ApplicationService.ts

import { doHoge, doFuga, addFoo, addBar } from "../ducks";

class ApplicationService {
  constructor(private dispatch: Dispatch, private client: ApiClient) {
  }

  async getHoge(id: number) {
    const hoge = await this.client.fetchHoge(id);
    this.dispatch(doHoge(hoge.id));
    const fuga = await this.client.fetchFuga(hoge.id);
    this.dispatch(doFuga(fuga.id, hoge.name));
  }

  getFoo() {
    this.dispatch(async (dispatch, getState) => {
      const {foo, bar} = getState();
      dispatch(addFoo(foo + 1));
      dispatch(addBar(bar + 1));
    });
  }
}