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api-development

Create secure, type-safe Express API endpoints with Zod validation and authentication.

4|11|Updated May 1, 2025
Search Tags:#authorization#authentication#validation#zod#express#api-development
One-click install
npx skills add https://github.com/Rational-Partners/ai-training-practical --skill api-development-rational-partners
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: api-development
Source: https://github.com/Rational-Partners/ai-training-practical/tree/main/.claude/skills/api-development
Command: npx skills add https://github.com/Rational-Partners/ai-training-practical --skill api-development-rational-partners

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Backend API development often suffers from inconsistent validation, missing auth checks, and non-standard responses, leading to runtime errors and security gaps.

Core Features & Use Cases

  • Zod-based validation for request params, bodies, and responses to ensure type safety.
  • Authentication and permission middleware to protect endpoints and enforce access control.
  • Standardized response format and clear error handling to improve client reliability.
  • Use Case: When adding a new protected route in an Express app, this Skill guides you to design schemas, wire middleware, and implement a controller with robust validation.

Quick Start

Create a new Express route with authentication, permission checks, and Zod validation, then return a consistent response structure.

Frequently Asked Questions about api-development

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

FAQPage Schema
How do I add Zod validation to an Express route?▼

You can add Zod validation to an Express route by defining schemas for request params, bodies, and responses, then wiring them through middleware to ensure type safety before hitting the controller.

What is the best way to structure authentication and permission checks in a Node.js API?▼

The best way to structure authentication in a Node.js API is through composable middleware that verifies user identity and enforces permission checks before routing to the protected controller logic.

How do I standardize API responses and error handling in Express?▼

Standardize API responses in Express by enforcing a consistent response format and clear error handling rules across all endpoints, which improves client reliability and reduces runtime errors.

Can I use this approach for CRUD-style APIs in an existing Node.js project?▼

Yes, you can apply this approach to CRUD-style APIs in an existing Node.js project to design contracts, wire middleware, and implement controllers with robust validation and access control.

Why does my backend API suffer from inconsistent validation and security gaps?▼

Backend APIs suffer from inconsistent validation and security gaps when they lack standardized schema validation and missing auth checks, leading to runtime errors and unprotected endpoints.

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