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frontend-api-mock-test

Automate MSW v2 API mocking for deterministic test environments.

Updated Aug 23, 2026
Search Tags:#vitest#testing#node#msw#axios#api-mocking#server-mocks
One-click install
npx skills add https://github.com/Kwondongkyun/claude-code-settings --skill frontend-api-mock-test
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: frontend-api-mock-test
Source: https://github.com/Kwondongkyun/claude-code-settings/tree/main/skills/frontend-api-mock-test
Command: npx skills add https://github.com/Kwondongkyun/claude-code-settings --skill frontend-api-mock-test

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you reliably test API integrations by providing a complete MSW v2-based mocking setup, including server lifecycle and error scenarios, so tests don't depend on real network calls.

Core Features & Use Cases

  • MSW v2 server setup: Defines handlers and a node-based mock server for API endpoints.
  • API function testing: Demonstrates how to test getMeApi and similar API calls with mock responses.
  • Error scenario validation: Includes network errors, timeouts, and HTTP error status handling to verify client resilience.

Quick Start

Set up an MSW v2 server with handler definitions and run the test suite to mock API responses for Axios.

Frequently Asked Questions about frontend-api-mock-test

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

FAQPage Schema
How do I mock Axios API calls in Vitest using MSW v2?▼

MSW v2 mocks Axios API calls in Vitest by defining request handlers on a node-based mock server, intercepting client network requests to return deterministic test responses without real network calls.

What is the best way to test Axios interceptor error handling?▼

The best way to test Axios interceptor error handling is configuring MSW v2 handlers to simulate network errors, timeouts, and HTTP error statuses to validate client resilience during server interactions.

How do I handle unhandled requests during API mocking tests?▼

Unhandled requests during API mocking tests are managed via explicit unhandled-request handling and per-test handler overrides within the MSW server lifecycle to keep test environments deterministic.

Does MSW v2 work with Node for frontend API testing?▼

MSW v2 works with Node for frontend API testing by establishing a node-based mock server environment that intercepts Axios requests to provide reliable, network-independent test outcomes.

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