elysiajs

Develop type-safe backend APIs with ElysiaJS routing and TypeBox validation.

Updated Mar 5, 2026

Search Tags:#typescript #performance #api #backend #type-safe #web framework #elysiajs

Ready to run

npx skills add https://github.com/Pontusg45/fubbik --skill elysiajs-pontusg45

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: elysiajs
Source: https://github.com/Pontusg45/fubbik/tree/main/.agents/skills/elysiajs
Command: npx skills add https://github.com/Pontusg45/fubbik --skill elysiajs-pontusg45

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and plugins (resource) and integrations (resource) and examples (resource) and patterns (resource) components.

What problem does it solve?

This Skill streamlines the development of robust, type-safe, and high-performance backend APIs, reducing boilerplate code and improving developer experience.

Core Features & Use Cases

Type-Safe Routing & Validation: Define routes, parameters, and request/response bodies with strong typing using TypeBox.
Plugin System: Easily extend functionality with a rich ecosystem of official and community plugins (e.g., CORS, JWT, ORM integrations).
High Performance: Built for Bun, offering exceptional speed and low memory footprint.
Use Case: Quickly scaffold a REST API for a new web application, implement user authentication with JWT, and integrate with a PostgreSQL database using Drizzle ORM.

Quick Start

Create a new ElysiaJS project by running bun create elysia app in your terminal.

Frequently Asked Questions about elysiajs

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

FAQPage Schema

How do I create a type-safe backend API using Bun?▼

You can create a type-safe backend API using Bun by leveraging the ElysiaJS framework, which provides end-to-end type safety for routing, validation, and responses. It uses TypeBox to validate request and response bodies, ensuring scalable and maintainable server-side applications.

What is the best way to validate request bodies in a TypeScript web framework?▼

The best way to validate request bodies in this TypeScript web framework is using TypeBox, which enables strong typing for parameters and request schemas. This approach ensures end-to-end type safety and reduces boilerplate code during API development.

Does ElysiaJS support WebSocket connections and JWT authentication?▼

Yes, ElysiaJS supports WebSocket connections and JWT authentication. You can easily extend functionality using its plugin system, implementing user authentication with JWT and integrating WebSocket support for real-time communication within your backend API.

How do I scaffold a new REST API project for Bun quickly?▼

To scaffold a new REST API project for Bun quickly, run `bun create elysia app` in your terminal. This sets up a high-performance framework environment, allowing you to immediately define routes and integrate necessary plugins like CORS.

Can I use Drizzle ORM with a high-performance TypeScript backend?▼

Yes, you can use Drizzle ORM with a high-performance TypeScript backend. ElysiaJS features a rich plugin ecosystem that supports ORM integrations like Drizzle, allowing you to connect to PostgreSQL databases while maintaining end-to-end type safety.