mock-server-generator

Create mock HTTP servers for API testing and development. Generate fake data, define endpoints, and simulate responses without a real backend.

Overview

A skill that helps developers create mock APIs quickly for testing frontend applications, prototyping, or decoupling microservices development.

Features

• Quick Server Creation: Generate a mock server with a single command
• Custom Endpoints: Define custom routes, methods, and response bodies
• Dynamic Responses: Use templates to generate realistic fake data
• Delay Simulation: Add latency to simulate real network conditions
• Error Simulation: Easily simulate 4xx/5xx error responses
• Data Persistence: Store and retrieve mock data across requests
• OpenAPI Import: Generate mocks from OpenAPI/Swagger specifications

Commands

Start a Basic Mock Server

start mock server on port 3000

Define Custom Endpoints

add GET /api/users returning [{"id": 1, "name": "John"}]
add POST /api/posts with delay 500ms

Import from OpenAPI

generate mock from https://api.example.com/openapi.json

Use Cases

• Frontend development without a backend
• API testing and test data generation
• Prototyping and demo environments
• CI/CD pipeline testing
• Microservice decoupling

Requirements

• Node.js 18+
• Optional: Docker for containerized deployment