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koa-static-etag

v1.0.1

Published

静态资源启用304缓存机制

Downloads

14

Readme

koa-static-etag

Installation

Install the plugin with npm:

$ npm install koa-static-etag --save-dev

API

const Koa = require('koa');
const app = new Koa();
app.use(require('koa-static-etag')(opts));

Options

  • mode 可以是'etag'、'lastModified'、true 、false四种选项 如果是lastModified,则启用Last-Modified机制.如果是false,则不进行304机制检测。默认是 true,使用Etag机制.
  • root 静态资源的根目录, 默认是 process.cwd().
  • pathMatch 请求路径的匹配规则,可以是 字符串、正则或者函数(返回true或者false,参数是当前url请求的路径)
  • extMatch 请求文件后缀名的可以进行Etag或lastModified的规则匹配,可以是 字符串、正则或者函数(返回true或者false,参数是当前请求文件的扩展名)
  • index 请求的默认文件,防止当前请求没有文件响应,默认是'index.html'

Example

let koa = require('koa2');    
let app = new koa();
let staticEtag = require('koa-static-etag')
    
app.use(staticEtag({
    root: __dirname,
    pathMatch: /^(\/tm-admin)|(\/static)/, //tm-admin和static目录下可以返回静态资源
    extMatch: /[^(mp4)]$/i,  //MP4格式的视频不进行304缓存
    mode:true
}))