import pumpRequests from 'pump-requests';
import api from '../api';

// you can pass this function wherever you want
// if you use redux, you can pass it to the
// middleware
const checkFavourite = pumpRequests(ids => {
  return api.get('/favourites', ids);
  // for instance, { 5: 'some', 10: 'another' }
});

checkFavourite(5).then(val => console.log(val)); // 'some'
checkFavourite(10).then(val => console.log(val)); // 'another'

import pumpRequest from 'pump-requests';

const checkFavourite = pumpRequest(
  // this function will be invoked with array of parameters,
  // with which `checkFavourite` was called by individual items
  fn: (ids) => api.get(...),
  {
    // debounce time – after which period of silence we will call fn
    // default value is 50
    time: 100,
    
    // function to get information for specific call
    // results – data from fn
    // id – parameter with which you called `checkFavourite`
    //
    // default value is (results, id) => results[id],
    // so, it means you have to pass string as an id, and
    // resolve object from fn with ids as keys
    parseParams: (results, id) => ...
  }
);