npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

express-proxy-middleware

v1.0.8

Published

express proxy middleware

Readme

express-proxy-middleware

提取 webpack-dev-server 中的代理功能作为一个中间件 方便传入一个path, 或者含有proxy属性的对象来生成express中间件.

配置

支持webpack-dev-server配置中的 proxy 配置规则.

  • 安装
npm install express-proxy-middleware

使用

参数支持传入一个配置对象或包含配置对象的配置文件路径, 路径支持绝对路径或相对路径.

  • 配置文件参考
// 如配置文件为 proxy.config.js
module.exports = {
    proxy: {
        '/proxy1': {
            // 目标地址, 必须带完整的协议(如 http:// 或 https://)
            'target': 'http://localhost:9000',
             // whether to print Http headers. default false
             debug: false
            // 设置请求header
            'headers': {
                // 转发的请求携带的cookie
                cookie: 'id=abcdefg;',
                // 请求头host字段, 该字段不需要带协议
                host: 'localhost'
            }
        },
        '/api/proxy2': {
            'target': 'http://localhost:9001',
            'pathRewrite': { '^/api': '' }
        },
        '/foo': {
            target: 'http://localhost:9001',
            'bypass': function(req) {
                if (/\.html$/.test(req.path)) {
                    return '/foo/a/index.html';
                }
            }
        }
    }
}
  • 配置对象参考
const proxyConfig = {
     proxy: {
         '/proxy1': {
             'target': 'http://localhost:9000',
             // whether to print Http headers. default false
             debug: false
         },
         '/api/proxy2': {
             'target': 'http://localhost:9001',
             'pathRewrite': { '^/api': '' }
         },
         '/foo': {
             target: 'http://localhost:9001',
             'bypass': function(req) {
                 if (/\.html$/.test(req.path)) {
                     return '/foo/a/index.html';
                 }
             }
         }
     }
 };
                     

配置对象需要包含proxy属性.

const express = require('express');
const proxyMiddleware = require('express-proxy-middleware');
var app = express();
/**
 * proxyMiddleware 转发中间件
 * @param object | string;  可以直接传配置对象, 或配置文件路径
 * 配置文件路径支持绝对路径或相对路径.
 */
app.use(proxyMiddleware(path.resovle(__dirname, 'proxy.config.js')));
app.listen(3000);

参考

转发功能采用 http-proxy-middleware 库实现

其他

开发node版本 6.5.0