Mock Service Worker 🇺🇦 @ApiMocking
Industry standard API mocking in JavaScript. mswjs.io Joined June 2020-
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MSW now supports custom predicate functions for your handlers. Express more nuanced matching logic without exhausting your handler. Need to match against a query param? A header? A body chunk? Now you can! (including GraphQL)
📣 Announcing "Advanced Vitest Patterns"! In this workshop, you'll become a @vitest_dev superuser by: - Crafting better testing experiences with custom, type-safe fixtures and assertions; - Making your tests more expressive and easier to debug with retryable and soft assertions;…
. @Google is using MSW (@ApiMocking) for testing the Gemini CLI! Retweet if you think they'd be a great GitHub Sponsor 👀
My preferred React stack for 2025 Package manager: Bun Starter: Vite Language: TypeScript Router: Tanstack Router Remote state: Sync engine like Convex or Zero if possible, Tanstack Query otherwise. Form state: Tanstack Form Global/subtree state: Zustand Unit tests:…
More people should check out this repo and this workshop: github.com/epicweb-dev/re… Test your React components in the actual browser with Vitest Browser Mode. This is the way.
I think authentication in E2E tests can be better. That's why I'm building a library called Playwright Persona. Learn what it is, why it exists, and how to use it: github.com/kettanaito/pla… And, please, share your thoughts! 🙏 Thank you.
📰 Today, I'm sharing one of my favorite APIs to help you design great test utilities. And to help you understand it, let's talk about flat tests and one glaring issue that they have... epicweb.dev/better-test-se…
Good news for Playwright users!
The Testing Bundle by @kettanaito on Epic Web is on a 25% discount for only a few more days. Don't miss it! epicweb.dev/testing 👈
Huge thank you to @stackblitz for becoming MSW's golden sponsor ❤️ Your support will help us ship new features and fix bugs. Thank you!
Today, I invite you to learn the Browser Mode in @vitest_dev. Unlock the true value out of your React component tests in the real browser! 📢 A new workshop is OUT at Epic Web. The link below.
Tomorrow! Join @kettanaito (creator of @ApiMocking) and @kylegach (DX eng at Storybook) for a live discussion around mocking and UI testing. We'll walk through techniques and leave lots of time to answer your questions. Register here: us02web.zoom.us/webinar/regist…
Now that we have Standard Schema, I'm experimenting with an idea to support an in-memory data storage in MSW. Here's a gist.
Watching Mandalorian for the first time right now, and let me tell you these folks aren't wrong. This is the way.
Neat, there's an effort to create MSW DevTools as a Chrome extension. Give this a try 👇 chromewebstore.google.com/detail/msw-dev…
If you want to help, I'd be grateful for someone to investigate this memory leak: github.com/mswjs/msw/issu… Guarantees to be a challenge for your debugging skills. Thank you!
Yes, yes there is a way. Talking about it in this video.
Yes, yes there is a way. Talking about it in this video.
Oy! The @DevtoolsFM episode just dropped! 😍 Come listen to me mumbling about APIs, request interception, and what it looks like being an @EpicWeb_dev instructor. This one was so much fun!
Oy! The @DevtoolsFM episode just dropped! 😍 Come listen to me mumbling about APIs, request interception, and what it looks like being an @EpicWeb_dev instructor. This one was so much fun!
I am thrilled to announce that @WorkleapHQ has become a new MSW partner 🥳 Thank you for your support! You are making it possible for me to keep working on MSW, improving API mocking for everyone. ❤️
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