elysiajs

Build type-safe ElysiaJS backends for Bun-based servers with REST and WebSocket support.

Updated Oct 12, 2025

Search Tags:#typescript #openapi #backend #plugins #bun #elysia #eden

Ready to run

npx skills add https://github.com/zomeru/rezumerai --skill elysiajs-zomeru

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

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

ElysiaJS provides a comprehensive, type-safe backend framework to simplify building fast, scalable APIs on Bun, reducing boilerplate and runtime errors.

Core Features & Use Cases

Type-safe routing and validation with the built-in Elysia.t and an extensive plugin ecosystem for authentication, OpenAPI, Eden treaty, and database integrations.
Rapid scaffolding and deployment guidance for Bun-based backends across REST, WebSocket, and serverless environments.
Real-world scenarios include building API backends, microservices, and OpenAPI documentation generation with Eden treaty clients.

Quick Start

Create a new Elysia project and start the development server to explore a type-safe Bun-based backend.

Frequently Asked Questions about elysiajs

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

FAQPage Schema

How do I build a type-safe backend API with Bun?▼

To build a type-safe backend API with Bun, use this framework to establish type-safe routing and validation. It reduces boilerplate and runtime errors by providing structured scaffolding for scalable servers.

Can I use Prisma and Drizzle with ElysiaJS for database integrations?▼

Yes, you can use Prisma and Drizzle with ElysiaJS. The framework supports extensive integrations for databases, authentication, and other services to build scalable microservices and APIs.

How do I generate OpenAPI documentation for a Bun server?▼

Generate OpenAPI documentation for a Bun server by leveraging the framework's built-in support. It automatically produces documentation and provides Eden Treaty clients for type-safe consumption.

What is the best way to add WebSocket services to a TypeScript backend?▼

The best way to add WebSocket services to a TypeScript backend is using this framework's plugin ecosystem. It provides rapid scaffolding and deployment guidance for WebSocket environments on Bun.

Does ElysiaJS support serverless deployment for TypeScript APIs?▼

Yes, ElysiaJS supports serverless deployment for TypeScript APIs. It includes in-depth deployment guidance for serverless environments alongside REST and WebSocket configurations.