Registry / devops / fetch-everywhere

fetch-everywhere

library1.0.5jsnpmunverified

Isomorphic WHATWG Fetch API that works in node.js, browsers, webpack, browserify, and react-native by providing a global fetch function. Version 1.0.5, last updated in 2016. Built on top of isomorphic-fetch and GitHub's WHATWG Fetch polyfill. Key differentiator: claims to support all JavaScript environments without per-environment configuration. However, the package is minimally maintained and depends on the outdated isomorphic-fetch; modern Node.js versions (18+) include native fetch, making this polyfill obsolete for most use cases.

devops

npm install fetch-everywhere

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INSTALL

IMPORT

SIG · FETCH-EVERYWHERE

fetch-everywhere

devopsjavascriptv1.0.5

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

fetch (global)

✓ import 'fetch-everywhere'; fetch('...');

✗ import { fetch } from 'fetch-everywhere';

This package sets fetch as a global, not a named export. In ESM, use a side-effect import. In CJS, require and call fetch globally.

require('fetch-everywhere')

✓ require('fetch-everywhere'); fetch('...');

✗ const fetch = require('fetch-everywhere');

The package does not export fetch; it only sets it globally. Assigned require will return an empty object.

Head, Request, Response, Body

✓ import 'fetch-everywhere'; console.log(typeof Headers, typeof Request, typeof Response);

✗ import { Headers } from 'fetch-everywhere';

These are also set globally, not exported. The package re-exports them from the underlying WHATWG polyfill.

Demonstrates fetching data from a public API after polyfilling Promise and importing fetch-everywhere to set global fetch.

require('es6-promise').polyfill(); require('fetch-everywhere'); fetch('https://jsonplaceholder.typicode.com/posts/1') .then(function(response) { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then(function(post) { console.log(post.title); }) .catch(function(error) { console.error('Fetch failed:', error); });

Debug

Known issues

deprecatedPackage is outdated; modern Node.js (>=18) has native fetch. Use built-in fetch instead.

fix

In Node 18+, remove fetch-everywhere and use global fetch directly. For older environments, consider using 'node-fetch' (CJS) or 'undici' (ESM).

affects: all

breakingDoes not export fetch; it only applies fetch to global scope. Attempting to destructure import will result in undefined.

fix

Use a side-effect import (import 'fetch-everywhere') or require() without assignment.

affects: >=0.0.0

gotchaMust polyfill Promise manually if not available (e.g., Node 0.12). Package does not include a Promise polyfill.

fix

Install and polyfill es6-promise or promise before loading fetch-everywhere.

affects: all

gotchaDepends on 'isomorphic-fetch' which has known issues with binary data and streaming.

fix

Use 'node-fetch' for full Node.js spec-compliant fetch.

affects: all

deprecatedThe GitHub repo is archived; no further updates or security fixes.

fix

Migrate to a maintained fetch polyfill or use native fetch.

affects: >=1.0.0

Errors

Common errors & fixes

TypeError: fetch is not a function

The package wasn't imported before calling fetch, or it was imported incorrectly (e.g., destructured).

fix

Ensure you have a side-effect import: require('fetch-everywhere') or import 'fetch-everywhere' at the top of your entry file.

Cannot find module 'es6-promise'

fetch-everywhere requires es6-promise for older environments but does not include it as a dependency.

fix

Run: npm install es6-promise

ReferenceError: fetch is not defined

Trying to use fetch in a browser that doesn't support it or before the polyfill is loaded.

fix

Import fetch-everywhere at the entry point of your application before any fetch calls.

Warning: fetch-everywhere is deprecated. Please use native fetch or a modern alternative.

The package is no longer maintained and is not recommended for new projects.

fix

Remove fetch-everywhere and use native fetch (Node 18+) or node-fetch.

Upgrade

Version history

1.0.5latest on npm

Audit

Dependencies

es6-promiseoptionalRequired for Promise polyfill in environments without native Promise support (e.g., older Node). fetch-everywhere does not bundle a promise polyfill.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/lucasfeliciano/fetch-everywhere ↗

packagefetch-everywhere ↗

homepagehttps://github.com/lucasfeliciano/fetch-everywhere/issues ↗