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contatomaycon
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fastify-typescript

Build type-safe Fastify APIs with TypeScript, JSON schema validation, and Prisma integration.

Updated Jul 12, 2025
Search Tags:#typescript#testing#performance#api#validation#prisma#fastify
One-click install
npx skills add https://github.com/contatomaycon/underchat --skill fastify-typescript
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: fastify-typescript
Source: https://github.com/contatomaycon/underchat/tree/main/.agents/skills/fastify-typescript
Command: npx skills add https://github.com/contatomaycon/underchat --skill fastify-typescript

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Build high-performance, type-safe Fastify APIs with strong validation, Prisma integration, and robust testing practices to improve reliability and speed.

Core Features & Use Cases

  • Structured, type-safe guidelines for Fastify + TypeScript development, including project structure, route schemas, plugin patterns, and error handling.
  • Real-world use cases like building scalable APIs with Prisma-backed databases, strict runtime validation, and maintainable codebases.
  • Example: Start a new Fastify service with typed routes and schema validation to ensure consistent behavior and performance.

Quick Start

Create a minimal Fastify + TypeScript project skeleton with a sample route and typed schemas to validate end-to-end typing and performance.

Frequently Asked Questions about fastify-typescript

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

FAQPage Schema
How do I build a type-safe Fastify API with TypeScript and runtime validation?▼

Build a type-safe Fastify API by defining JSON schemas for routes and enforcing TypeScript types across your codebase. This approach ensures strict runtime validation for requests and responses while maintaining high performance.

What is the best way to structure a Fastify and TypeScript project for scalability?▼

Structure your Fastify and TypeScript project using modular architecture with plugins. This pattern separates route schemas, error handling, and database logic, resulting in a maintainable and scalable codebase.

Can I use Prisma with Fastify and TypeScript for database operations?▼

Yes, you can integrate Prisma with Fastify and TypeScript to manage database operations. This combination provides strong typing end-to-end, connecting your typed routes directly to a Prisma-backed database.

How do I enforce schema validation and error handling in Fastify?▼

Enforce schema validation in Fastify by attaching JSON schemas directly to your route definitions. This built-in mechanism automatically validates inputs and structures consistent error handling responses.

Does Fastify with TypeScript support comprehensive testing practices?▼

Fastify with TypeScript supports comprehensive testing practices by encouraging consistent test suites across your modular plugins. You can validate typed routes and schema behavior to ensure reliable API performance.

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