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koa-server-static

v1.0.0

Published

koa-static的增强版,支持动态选择pc端还是移动端的静态文件,coderlibs官方提供的Koa静态文件服务中间件

Downloads

7

Readme

koa-server-static

Koa 静态文件服务中间件,可以根据不同设备(pc端,移动端)动态获取资源

该中间件由coderlibs 官方出品

Installation

$ npm install koa-server-static

API

const Koa = require('koa');
const app = new Koa();
app.use(require('koa-server-static')(root, opts)); // 获取静态资源
app.listen(8080, () => {
    console.log('Server is running at http://localhost:' + port);
});

Options

  • facility 代表设备类型,不设置则代表不区分,值可传 pc | md
  • maxage 浏览器缓存的最大年龄(以毫秒为单位)。默认为 0
  • hidden 允许传输隐藏文件。默认为false
  • index 默认文件名,默认为 'index.html'
  • defer 如果为 true,则在 之后服务return next(),允许任何下游中间件首先响应。
  • gzip 当客户端支持 gzip 并且请求的扩展名为 .gz 的文件存在时,尝试自动提供文件的 gzip 版本。默认为真。
  • brotli 当客户端支持 brotli 并且请求的扩展名为 .br 的文件存在时,尝试自动提供文件的 brotli 版本(注意,brotli 只能通过 https 接受)。默认为真。
  • setHeaders 函数在响应中设置自定义标头。
  • extensions 当 URL 中没有足够的扩展名时,尝试从传递的数组中匹配扩展名来搜索文件。首先找到的服务。(默认为false)

示例1 facility

const Koa = require('koa');
const app = new Koa();
const static = require('koa-server-static');
const path = require('path');
// facility代表设备类型,不设置则代表不区分
app.use(static(path.join(__dirname + '/public/pc'),{facility:'pc'})); // 当设备为电脑端时(Personal Computer)获取端静态资源

app.use(static(path.join(__dirname + '/public/app'),{facility:'md'})); // 当设备为手机端时(Mobile Device)获取端静态资源

示例2 defer

const Koa = require('koa');
const app = new Koa();
const static = require('koa-server-static');
const path = require('path');
// defer代表是否需要最后执行此中间件,不设置则立马执行
app.use(static(path.join(__dirname + '/public'),{defer:true})); // 等待其他中间件执行完后最后再加载当前中间件