ramda-adjunct/src/internal/polyfills/Promise.allSettled.js

Ramda Adjunct is the most popular and most comprehensive set of utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.

import { map } from 'ramda';

import allP from '../../allP';
import resolveP from '../../resolveP';

const onFulfill = (value) => ({ status: 'fulfilled', value });
const onReject = (reason) => ({ status: 'rejected', reason });

const allSettledPolyfill = (iterable) => {
  const array = map((p) => resolveP(p).then(onFulfill).catch(onReject), [
    ...iterable,
  ]);

  return allP(array);
};

export default allSettledPolyfill;