Bun Hono Port

• Change port number

Directory Structure

.
`-- hono
    |-- .env
    |-- package.json
    |-- src
    |   `-- index.ts
    `-- tsconfig.json

3001port

hono/.env

HONO_PORT=3001

index.ts

import { serve } from 'bun'
import { Hono } from 'hono'

const app = new Hono()

const defaultPort = 3001
const port = process.env.HONO_PORT !== undefined ? parseInt(process.env.HONO_PORT) : defaultPort
console.log(process.env.HONO_PORT)

app.get('/', (c) => {
  return c.text('Hello Hono!')
})

serve({ fetch: app.fetch, port: port })

export default serve

if (process.pid) {
  console.log('This process is server pid ' + process.pid)
}

Execution

sh

cd hono

bun

bun run dev

Accesse Browser

http://localhost:3001/

Response

Hello Hono!

WARNING

.envを実行するディレクトリに置かないと読み込まれないので注意が必要

hono/の階層で実行

 .envが読み込まれる。

sh

cd hono

bun

bun run dev

3001
This process is server pid *****

hono/以外でで実行

 .envが読み込まれない。

sh

cd hono

bun

bun run dev

undefined
This process is server pid *****