onions-node/lib/create_dist_router.js

onions-node backend

const express = require('express')
const path = require('path')
module.exports = (distConfig, projectPath) => {
  if (typeof distConfig === 'string') {
    distConfig = [{
      path: distConfig,
      match: '/',
      type: 'static',
      maxage: '7d'
    }]
  }
  const router = express.Router()
  distConfig.forEach(config => {
    switch (config.type) {
      case 'static':
        router.use(
          config.match,
          express.static(path.resolve(projectPath, config.path), {
            setHeaders(res, path, state) {
              if (/\.(html|htm)\??/.test(path)) {
                res.set('Cache-Control', 'no-cache')
              } else {
                res.set('Cache-Control', 'public, max-age=31536000') // 1year
              }
            }
          })
        );
        break
      case 'html':
        router.use(config.match, (req, res) => {
          res.set('Cache-Control', 'no-cache');
          res.sendFile(path.join(projectPath, config.path));
        })
        break
    }
  })
  return router
}