https://www.pistack.xyz/tags/msw/ Recent content in Msw on Pi Stack Hugo en-us Wed, 02 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-02-javascript-http-mocking-msw-nock-mirage-comparison/ Wed, 02 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-02-javascript-http-mocking-msw-nock-mirage-comparison/ <p>Every frontend team hits the same wall: your components, hooks and end-to-end flows depend on APIs that are slow, flaky, rate-limited or not even built yet. Stubbing fetch manually works for two endpoints and collapses at fifty. That is why HTTP mocking libraries exist — and in 2026 the JavaScript ecosystem has three serious contenders: <strong>MSW</strong> (Mock Service Worker), <strong>Nock</strong>, and <strong>Mirage JS</strong>. They look interchangeable at a glance, but they intercept requests at completely different layers of the stack, which means the choice determines everything from whether your mocks work in the browser to whether they survive a refactor from fetch to axios.</p>