@ekz/async-data

Type-safe async state for promises.

Documentation: https://docs.ekz.io/async-data/

Install

npm install @ekz/async-data @ekz/option

Quick example

import { Empty, Ready, observePromise } from '@ekz/async-data';

let data = Empty<User>();

data = data.pending();
data = Ready({ id: 1, name: 'Ada' });

const label = data.match(
    {
        Ready: (user) => user.name,
        Pending: () => 'Loading…',
    },
    () => '—',
);

See the docs for states, promise observation, and extractors.