Node.js Integration

Run Elysia on Node.js

What It Is

Runtime adapter to run Elysia on Node.js.

Installation

bun add elysia @elysiajs/node

Setup

Apply node adapter:

import { Elysia } from 'elysia'
import { node } from '@elysiajs/node'

const app = new Elysia({ adapter: node() })
  .get('/', () => 'Hello Elysia')
  .listen(3000)

Additional Setup (Recommended)

Install tsx for hot-reload:

bun add -d tsx @types/node typescript

Scripts in package.json:

{
  "scripts": {
    "dev": "tsx watch src/index.ts",
    "build": "tsc src/index.ts --outDir dist",
    "start": "NODE_ENV=production node dist/index.js"
  }
}

dev: Hot-reload dev mode
build: Production build
start: Production server

Create tsconfig.json:

tsc --init

Update strict mode:

{
  "compilerOptions": {
    "strict": true
  }
}

Provides hot-reload + JSX support similar to bun dev.

pnpm

Manual install:

pnpm add @sinclair/typebox openapi-types

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