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christopherlouet
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api-mocking

Mock REST or GraphQL APIs using MSW and nock for isolated testing.

5|Updated Jan 15, 2026
Search Tags:#automation#testing#api#msw#mock#nock
One-click install
npx skills add https://github.com/christopherlouet/claude-base --skill api-mocking-christopherlouet
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: api-mocking
Source: https://github.com/christopherlouet/claude-base/tree/main/.claude/skills/api-mocking
Command: npx skills add https://github.com/christopherlouet/claude-base --skill api-mocking-christopherlouet

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires msw, nock, json-server, miragejs, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill enables developers to easily mock APIs during testing, eliminating dependencies on actual backend services and facilitating reliable, repeatable tests.

Core Features & Use Cases

  • API simulation: Set up mock endpoints for REST or GraphQL APIs to test frontend components, integrations, or client libraries.
  • Flexible tools support: Incorporate MSW, nock, json-server, and Mirage JS efficiently within testing environments or development workflows.
  • Use Case: Developers want to simulate server responses for a frontend component without relying on a live backend, ensuring faster iteration and isolated tests.

Quick Start

Use the api-mocking skill to quickly set up API mocks for frontend testing with MSW or nock.

Frequently Asked Questions about api-mocking

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

FAQPage Schema
How do I mock REST and GraphQL APIs for frontend testing without a live backend?▼

API mocking simulates server responses using tools like MSW and nock, allowing you to set up mock endpoints for REST or GraphQL APIs. This ensures faster iteration and isolated frontend tests without relying on live servers.

What is the best way to simulate API response delays and errors in a test environment?▼

API mocking facilitates API error simulation and response delay modeling. By using tools like Mirage JS or json-server, you can create safe, controlled test conditions to verify how clients handle delayed or failed requests.

Can I use MSW and nock together in the same testing workflow?▼

Yes, this API mocking setup supports incorporating MSW, nock, json-server, and Mirage JS efficiently within testing environments. You can integrate these tools to handle various component testing and network simulation needs.

How do I set up isolated component testing for client libraries without risking data leaks?▼

You can use API mocking to establish safe, controlled test conditions without relying on live servers. Mocking endpoints with nock or MSW prevents data leaks by simulating network requests entirely within your local environment.

When should I choose json-server over MSW for API simulation?▼

Choose json-server for quickly standing up a mock REST API server for development, and use MSW when you need to intercept network requests at the service worker level for precise frontend component testing.

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