nestjs-backend-mastery

What problem does it solve?

This Skill addresses the challenges of building robust, type-safe NestJS backends, especially in monorepo environments. It ensures consistent data validation, prevents runtime bugs, and facilitates seamless type sharing between backend, web, and mobile applications, drastically reducing maintenance overhead and improving developer experience.

Core Features & Use Cases

• Zod Schema-First Development: Uses Zod schemas as the single source of truth for both runtime validation and TypeScript type inference, ensuring data integrity.
• Monorepo Type Sharing: Centralizes schemas and types in a packages/shared directory for efficient reuse across all applications (backend, frontend, mobile).
• Automated API Client Generation: Integrates with Orval to generate type-safe API clients and React Query hooks from Swagger/OpenAPI specifications, eliminating manual client coding.
• Use Case: When developing a new API endpoint in a NestJS monorepo, this skill guides you to define a Zod schema in packages/shared, automatically infer types, apply validation to your DTOs, and generate a type-safe client for your frontend, ensuring end-to-end type safety.

Quick Start

Create a new user DTO using Zod schema in packages/shared and integrate it into a NestJS controller.