getSingle Control Flow

gistfile1.txt

import { v4 as generateId } from 'uuid';

function SomeModule() {
  const [reqIds, setReqIds] = useState([]);
  const [state, localDispatch] = useReducer(createReducer(reqIds), initialState);

  function getSomeData(reqId) {
     const newReqId = generateId();
     setReqIds(newReqId)
     
     getSingle(
      ['ASSET_COMPANY_PROFILE'],
      [wsDispatch(
        localDispatch(
         (msg) => ({
           type: types.RECEIVE_COMPANY_INFO,
           payload: msg.payload,
           meta: { newReqId }  // pass in a unique id generated by the module
          })
        )
      )],
      [{ type: 'ASSET_COMPANY_PROFILE', payload: { providerId } }],
    );
  }

 function createReducer(reqIds) { // uses closure to save a list of possible reqIds for this instance of the reducer.
   const currentReqIds = reqIds;
   return function SomeModuleReducer(state, action) {
     if (!currentReqIds.includes(action.meta.reqId)) return state;
     // do stuff
    }
  }
}

v4 is NOT from immutable - should be from uuid. oops.