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Mock Service Worker

COLLECTIVE
Open source

A seamless REST/GraphQL API mocking library for JavaScript applications.

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Top financial contributors

Individuals

1
Michael Landis

$525 USD since Jul 2022

2
Incognito

$500 USD since Mar 2021

3
Doist

$294.77 USD since Dec 2022

4
Benoît Burgener

$190 USD since Mar 2021

5
Trevor Burnham

$75 USD since Feb 2023

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Hung Nguyen

$70 USD since May 2022

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Minh Nguyen

$50 USD since Jun 2022

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Esteban De la Rosa

$25 USD since Sep 2021

9
Guest

$20 USD since Nov 2021

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Ricardo Machado

$10 USD since Dec 2021

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GitHub Sponsors

$2,803.82 USD since Jan 2022

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Chromatic

$2,000 USD since May 2022

3
Shogun Labs, Inc.

$1,290 USD since Apr 2021

4
Toss

$650 USD since Mar 2023

5
FundOSS

$546.94 USD since Jun 2021

6
commercetools GmbH

$500 USD since Mar 2021

7
Mikel Software

$65 USD since Mar 2023

8
GoMage

$2 USD since Apr 2021

Mock Service Worker is all of us

Our contributors 26

Thank you for supporting Mock Service Worker.

Tim Deschryver

Core Contributor

Marco Moretti

Core Contributor

Matt Sutkowski

Core Contributor

GitHub Sponsors

$2,804 USD

Chromatic

Silver sponsor

$2,000 USD

Toss

Bronze sponsor

$650 USD

FundOSS

$547 USD

Michael Landis

Sponsor

$525 USD

Incognito

Bronze sponsor

$500 USD

Budget


Transparent and open finances.

Contribution #647701
Contribution #639963
+$50.00USD
Completed
Contribution #637048
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Today’s balance

$1,870.34 USD

Total raised

$8,409.56 USD

Total disbursed

$6,539.22 USD

Estimated annual budget

$2,014.40 USD

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News from Mock Service Worker

Updates on our activities and progress.

Announcing data modeling solution

We're thrilled to announce "Data"—data modeling and querying solution for testing and developing JavaScript applications (read the official announcement:...
Read more
Published on April 21, 2021 by Artem Zakharchenko

Node.js interception revamped

We are excited to have rewritten the Node.js request interception, improving its internal logic and public API (no breaking changes for MSW users). This rewrite allowed us to introduce browser-oriented interceptors to catch requests done vi...
Read more
Published on April 21, 2021 by Artem Zakharchenko

Announcing iframe support

With the 0.27.0 release, MSW now supports the interception of requests issued in an iframe. That includes nested iframes as well. We are excited to ship this fe...
Read more
Published on April 21, 2021 by Artem Zakharchenko

About


Mock Service Worker is an API mocking library for JavaScript applications. It uses Service Workers to intercept requests on the network level, once they were actually dispatched and left your application. Because of this, you don't have to alter your application for the sake of mocking.

By introducing a standardized way to write mocks — request handlers — MSW allows you to reuse the same mock definitions in multiple environments and for various purposes: testing, development, debugging. 

Rich support for REST and GraphQL API makes it silly-easy to cover your use cases and enable fast prototyping via a mock-first development. 

Our team

Tim Deschryver

Core Contributor

Marco Moretti

Core Contributor

Matt Sutkowski

Core Contributor