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fetch-mock-forwarder

library1.0.0jsnpmunverified

A drop-in replacement for isomorphic-fetch designed to enable fetch-mock usage in browser environments. Version 1.0.0, no release cadence defined. This package re-exports the global fetch by requiring whatwg-fetch, allowing webpack aliasing so that modules importing isomorphic-fetch will use it instead, enabling fetch-mock to intercept requests.

testing

npm install fetch-mock-forwarder

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · FETCH-MOCK-FORWARD

fetch-mock-forwarder

testingjavascriptv1.0.0

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.

(none)

✓ Use via webpack alias: 'isomorphic-fetch' -> 'fetch-mock-forwarder'

✗ Direct import: import fetch from 'fetch-mock-forwarder' (does not export anything)

The package does not export any symbols; it only loads whatwg-fetch and uses the global fetch.

Shows how to alias isomorphic-fetch to fetch-mock-forwarder in webpack and use it with fetch-mock.

// webpack.config.js module.exports = { resolve: { alias: { 'isomorphic-fetch': 'fetch-mock-forwarder' } } }; // test file import fetchMock from 'fetch-mock'; import 'isomorphic-fetch'; // now uses fetch-mock-forwarder fetchMock.mock('http://example.com', 200); const response = await fetch('http://example.com'); console.assert(response.status === 200);

Debug

Known issues

gotchaRequires webpack alias; does not work without bundler configuration.

fix

Configure webpack resolve.alias for 'isomorphic-fetch' as shown in quickstart.

affects: >=1.0.0

gotchaNo named exports; wrapper only sets up global fetch.

fix

Do not attempt to import any symbol from this package.

affects: >=1.0.0

gotchaAssumes global fetch exists after requiring whatwg-fetch; might conflict with other polyfills.

fix

Ensure whatwg-fetch is not loaded separately to avoid double polyfill.

affects: >=1.0.0

Errors

Common errors & fixes

Cannot find module 'isomorphic-fetch'

Alias not set in bundler configuration.

fix

Add resolve.alias in webpack.config.js: 'isomorphic-fetch': 'fetch-mock-forwarder'

fetch is not defined

fetch-mock-forwarder not loaded (alias not working) or whatwg-fetch not bundled correctly.

fix

Verify webpack alias and that whatwg-fetch is installed.

Upgrade

Version history

1.0.0latest on npm

Audit

Dependencies

whatwg-fetchrequiredprovides the global fetch polyfill

Agent activity

2 hits · last 30 days

node

Resources

githubgit://github.com/spaceviewinc/fetch-mock-forwarder ↗

packagefetch-mock-forwarder ↗

homepagehttps://github.com/spaceviewinc/fetch-mock-forwarder#readme ↗