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Current version of Farfetched is not stable yet. Please, read Releases policy before using it.

Farfetched is a missing data-fetching library for frontend, in more technical terms, it makes fetching, caching, synchronizing and updating server state in your web applications a breeze.

Why Farfetched?

Let's imagine that you can a pretty simple task: fetch a list of items from the server. And we have to add some extras — validate responses because server can be unreliable, retries in case of network errors, and so on. It's not a big deal, but it's a lot of boilerplate code that you have to write every time you need to fetch something.

Here is how you can do it without Farfetched
async function fetchItems() {
  const response = await fetch('/api/items', {
    method: 'GET',
  if (!reponse.ok) {
    throw new Error('Failed to fetch');
  const parsed = await response.json(); // Can be failed
  const valid = validateAgainsContract(parsed, ItemsResponseContract);
  if (!valid) {
    throw new Error('Invalid response');
  return parsed;

let attempt = 0;

async function start() {
  try {
    const items = await fetchItemsByIds(ids);
    return items;
  } catch (error) {
    if (attemptForItems < 3 && error.message === 'Failed to fetch') {
      attemptForItems += 1;
      await new Promise((resolve) => setTimeout(resolve, 1000));
      return start(ids);
    } else {
      throw error;

  .then((items) => {
    console.log('YEAH', items);
  .catch((error) => {
    console.error('OH NO', error);

Let's see how it looks with Farfetched:

Same code with Farfetched
import { createJsonQuery, isNetworkError, retry } from '@farfetched/core';

const itemsQuery = createJsonQuery({
  request: { url: '/api/items', method: 'GET' },
  response: { contract: ItemsResponseContract },

retry(itemsQuery, {
  times: 3,
  delay: 1000,
  filter: isNetworkError,
}); => {
  console.log('YEAH', items);
}); => {
  console.error('OH NO', error);


Pretty cool, right? We love it, and we hope you will too. Read on to learn more about Farfetched.

What's next?

  • Learn Farfetched at your own pace with our amazingly Thorough Tutorial
  • Read framework-specific recommendations for Solid and React
  • See the whole picture in API reference
  • Check out Farfetched's roadmap to stay in the same wavelength with us

Released under the MIT License.