skills.rest
gil00pita
gil00pitaCOMMUNITY
Explore all skills by this author →
Website𝕏@gil00pitaGitHub

msw

Intercept and mock REST and GraphQL API requests in browser and Node.js.

Updated Apr 12, 2026
Search Tags:#testing#frontend#graphql#mocking#http#node#msw
One-click install
npx skills add https://github.com/gil00pita/lanify --skill msw-gil00pita
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: msw
Source: https://github.com/gil00pita/lanify/tree/main/.agents/skills/msw
Command: npx skills add https://github.com/gil00pita/lanify --skill msw-gil00pita

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

MSW enables you to intercept and mock API requests in both the browser and Node.js, replacing real backend calls with deterministic responses to speed up tests and development.

Core Features & Use Cases

  • Client-side and server-side mocking with request handlers for REST and GraphQL.
  • Environment-specific setups using a browser worker or a Node.js server.
  • Use cases include developing without a backend, testing UI components, and simulating network conditions.

Quick Start

Install MSW and configure a browser worker or Node server to intercept API calls in your project.

Frequently Asked Questions about msw

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I mock REST and GraphQL APIs in frontend tests?▼

Mock APIs in tests by defining REST and GraphQL request handlers that intercept network calls in browser or Node.js environments, replacing real backend responses with deterministic data.

What is the best way to develop a frontend app without a backend?▼

Mocking API requests provides a reliable way to develop frontend apps without a backend by intercepting HTTP calls and returning simulated data through configured browser or server setups.

Can I intercept and mock HTTP requests in both browser and Node.js environments?▼

Yes, you can intercept HTTP requests in both browser and Node.js environments by configuring environment-specific setups, utilizing a browser worker for client-side and a server instance for server-side mocking.

How do I simulate network conditions to test UI components?▼

Simulate network conditions for UI component testing by configuring API request handlers to intercept HTTP calls and return controlled, deterministic responses, ensuring consistent test results.

Do I need a real backend server to run UI tests with mocked APIs?▼

No, you do not need a real backend server to run UI tests; mocking APIs intercepts requests directly in the browser or Node.js environment, supplying deterministic responses without external dependencies.

Related Skills

Explore More Software Engineering Skills→
OrcaQubitsOrcaQubits
35

acp-setup

Scaffold an ACP merchant server project with dependencies, schemas, and endpoint stubs.

Official
Intermediate
bennybennisonbennybennison

mock-api-contracts

Define UI-facing API contracts and validate screen flows against mocked FastAPI endpoints.

Community
Intermediate
bpteambpteam

react-tester

Orchestrate Vitest, Testing Library, and Apollo MockedProvider for React SPA component tests.

Community
Advanced
anouar1991anouar1991
1

network-mock-server

Intercept and mock API responses during automated tests with Playwright.

Community
Advanced