Express Rest Api

pluginagentmarketplace/custom-plugin-nodejs

This is your foundation for building any backend API with Node.js. It covers the full production stack: routing patterns for RESTful endpoints, middleware chains for auth and validation, centralized error handling, and the essential packages like Helmet and express-validator. The progression from basic CRUD to advanced topics like rate limiting and API versioning is well-structured. What I appreciate here is the honest timeline (8-10 weeks to get truly competent) and the production checklist that doesn't skip the boring but critical stuff like logging and CORS configuration. If you're building anything that needs a backend, from a mobile app to microservices, this is where you start.

skills.sh installs: 902
GitHub stars: 2
last updated: Aug 21, 2026

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Install

$ npx -y skills add pluginagentmarketplace/custom-plugin-nodejs --skill express-rest-api --agent claude-code

Installs into .claude/skills of the current project.

Files

Express REST API Skill

Master building robust, scalable REST APIs with Express.js, the de-facto standard for Node.js web frameworks.

Quick Start

Build a basic Express API in 5 steps:

Setup Express - npm install express
Create Routes - Define GET, POST, PUT, DELETE endpoints
Add Middleware - JSON parsing, CORS, security headers
Handle Errors - Centralized error handling
Test & Deploy - Use Postman/Insomnia, deploy to cloud

Core Concepts

1. Express Application Structure

const express = require('express');
const app = express();

// Middleware
app.use(express.json());
app.use(express.urlencoded({ extended: true }));

// Routes
app.use('/api/users', userRoutes);
app.use('/api/products', productRoutes);

// Error handling
app.use(errorHandler);

app.listen(3000, () => console.log('Server running'));

2. RESTful Route Design

// GET    /api/users       - Get all users
// GET    /api/users/:id   - Get user by ID
// POST   /api/users       - Create user
// PUT    /api/users/:id   - Update user
// DELETE /api/users/:id   - Delete user

const router = express.Router();

SKILL.md on GitHub