static serve middlware for koa

• ETag The module use weak etag, which is derived from last-modified time and file length.

• Last-Modified File last-modified time.

Installation

$ npm i koa-static-serve

Examples

View the ./examples directory for working examples.

API

serve(staticPath, options)

const Koa = require('koa');
const path = require('path');
const app = new Koa();
const serve = require('koa-static-serve');
const staticPath = path.join(__dirname, '..');
app.use(serve(staticPath, {
  maxAge: 3600,
  sMaxAge: 600,
  headers: {
    'X-Server': 'koa-static-serve',
  },
  dotfiles: 'allow',
  denyQuerystring: true,
  etag: false,
  lastModified: false,
  '404': 'next',
  extname: ['.html'],
}));
const port = process.env.PORT || 10000;
app.listen(port);
console.dir('server listen on:' + port);

staticPath static file path

options

• maxAge Static file's http response header, Cache-Control max-age, default is 0.

• sMaxAge Static file's http response header, Cache-Control s-maxage for cache application(eg. varnish). If not set, it will be Math.min(3600, maxAge).

• headers The default header.

• dotfiles Dot file access permission, it can be 'allow', 'deny', 'ignore'. Default is 'ignore'.

• denyQuerystring Deny query string, default is false. If using a http cache server(varnish) for the static files, query string should be denied. Otherwise there will be different cache for the same file.

• charset Default content charset.

• etag Enable or disable etag generation, default is true.

• lastModified Set the Last-Modified header to the last modified date of the file on the OS, default is true.

• 404 Set not found handler. If set 'next', it will call next when not found, otherwise will throw an error (404).

• extname Set default extname.

License

MIT