Koa Simple Static

Simple caching static file server for Koa

Similar to koa-static-cache, but with different options, better API, and in TypeScript.

Features:

• Caches: preloads files and dynamically loads new ones if found
• Falls back to /index.html if available
• Gzips if request's accept-encoding includes gzip
• Accepts extra headers for served files

Installation

npm i koa-simple-static

Usage

app.use(serve({
  dir: process.cwd()
}))

Options

• dir: string — directory you want to serve
• maxAge?: number = 0 — cache control max age (in seconds)
• extraHeaders?: Object[] — any extra headers you wish to set for requests served by this module
  • The format for this is [ { 'Link': '</foo.js>; rel=preload; as=script' }, { 'Set-Cookie': 'foo=bar; path=/;' } ]

Example

import serve from 'koa-simple-static'
import { resolve } from 'path'
import Koa from 'koa'

const app = new Koa()
const port = process.env.PORT || 4444

app.use(serve({
  dir: resolve(__dirname, 'public'),
  extraHeaders: [ { 'X-Something-Whatever': 'foo, bar' } ]
}))

app.listen(port, () => {
  console.log(`Serving on ${port}!`)
})

Important if you're using require, you'll need to require('koa-simple-static').default.

FAQ

• How is this different from other options?
  • Before this module, you could have a static file server for Koa with good defaults that didn't cache, or one that did cache with weird defaults (like not falling back to index.html). Now, you can have the good parts of both.
• I'm getting errors but my code is fine?
  • How old is your version of Node? You'll need to be on the versions supported in the engines field, or else Babelify or otherwise compile your server.

Contributing

• Issues and PRs are welcome! Please keep in mind that this is feature complete.
• This project uses TypeScript. It will be easiest if your editor is configured to work with eslint and tsc.
• Please run tests!
• If you're changing or adding functionality, please add tests!

LICENSE