Does this skill support the latest Express 5 features?

Yes, it includes specific patterns for Express 5, including auto-forwarding of rejected promises in async handlers and updated path-to-regexp syntax for route parameters.

Why does the skill insist on 4 arguments for error handlers?

Express identifies error-handling middleware specifically by the number of arguments (arity). A function with 3 arguments is treated as regular middleware, causing errors to be ignored or mismanaged.

How does it handle middleware ordering?

It follows a strict production sequence: Security (Helmet), CORS, Rate Limiting, Body Parsing, Logging, Route Handlers, and finally Error Handling to ensure maximum security and reliability.

Can this skill help with TypeScript integration in Express?

Yes, it provides patterns for typed Request/Response objects, custom interface extensions for authenticated requests, and named exports to ensure type safety across the API.

Express.js API Development

Name: Express.js API Development
Author: agents-inc

byagents-inc

0•

Desarrollo de API

Builds robust, modular REST APIs using Express.js middleware patterns, centralized error handling, and production-grade routing.

This skill equips Claude with specialized knowledge for architecting production-ready Express.js applications. It focuses on the 'middleware-first' philosophy, ensuring correct implementation of modular routing via express.Router(), strict middleware ordering (security first, error handlers last), and mandatory 4-argument error handling signatures. It provides a clear migration path between Express 4 and Express 5, covering critical differences in async error forwarding, body parsing, and route parameter syntax while enforcing project-specific coding conventions.

Características Principales

01Standardized 4-argument error handling middleware to prevent silent failures and hanging requests.

020 GitHub stars

03Modular routing implementation using express.Router for clean resource isolation.

04Reusable request validation and route guard patterns for authentication and authorization.

05Version-specific patterns for async error handling in both Express 4 and Express 5.

06Optimized middleware sequencing for security, CORS, rate limiting, and body parsing.

Casos de Uso

01Scaffolding scalable RESTful API architectures with structured directory patterns.

02Migrating legacy Express 4 codebases to the Express 5 stable release standards.

03Implementing standardized API response helpers and centralized error logging.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add agents-inc/skills api-framework-express

For use in Claude.ai and ChatGPT

Características Principales

01Standardized 4-argument error handling middleware to prevent silent failures and hanging requests.

020 GitHub stars

03Modular routing implementation using express.Router for clean resource isolation.

04Reusable request validation and route guard patterns for authentication and authorization.

05Version-specific patterns for async error handling in both Express 4 and Express 5.

06Optimized middleware sequencing for security, CORS, rate limiting, and body parsing.

Casos de Uso

01Scaffolding scalable RESTful API architectures with structured directory patterns.

02Migrating legacy Express 4 codebases to the Express 5 stable release standards.

03Implementing standardized API response helpers and centralized error logging.