【问题标题】:Error when using node-http-proxy with expressjs将 node-http-proxy 与 expressjs 一起使用时出错
【发布时间】:2012-03-20 13:24:29
【问题描述】:

我没有得到最新版本的 node-http-proxy 工作(虽然这曾经在以前的版本中工作)。 Node.js 版本为 0.6.12,node-http-proxy 版本为 0.8.0。 基本上,我有一台服务器在端口 10000 上监听,另一台在端口 5000 上监听。我想将所有以 /api 开头的请求代理给最后一个人(在删除此前缀之后)。

我的代码是:

var express = require("express");
var httpProxy = require('http-proxy');
var cluster = require('cluster');
var fs = require('fs');

// Use http server for local tests
var app = express.createServer();

// Proxy request targeting API
app.all('/api/*',function(req, res){

  // Remove '/api' part from query string
  req.url = '/' + req.url.split('/').slice(2).join('/');

  // Create proxy
  var proxy = new httpProxy.HttpProxy();
  proxy.proxyRequest(req, res, {
    target: {
      host: 'localhost',
      port: 5000
    }
  });
});

// Handle static files
app.use(express.static(__dirname + '/public'));

// Run application
app.listen(10000);

静态文件已正确提供,但当涉及代理内容时,我收到此错误:

Error: Both `options` and `options.target` are required.
at new <anonymous> (/Users/luc/Projects/test/www/node_modules/http-proxy/lib/node-http-proxy/http-proxy.js:53:11)
at /Users/luc/Projects/test/www/server.js:15:16
at callbacks (/Users/luc/Projects/test/www/node_modules/express/lib/router/index.js:272:11)
at param (/Users/luc/Projects/test/www/node_modules/express/lib/router/index.js:246:11)
at pass (/Users/luc/Projects/test/www/node_modules/express/lib/router/index.js:253:5)
at Router._dispatch (/Users/luc/Projects/test/www/node_modules/express/lib/router/index.js:280:4)
at Object.handle (/Users/luc/Projects/test/www/node_modules/express/lib/router/index.js:45:10)
at next (/Users/luc/Projects/test/www/node_modules/express/node_modules/connect/lib/http.js:203:15)
at Object.handle (/Users/luc/Projects/test/www/node_modules/express/lib/http.js:83:5)
at next (/Users/luc/Projects/test/www/node_modules/express/node_modules/connect/lib/http.js:203:15)-error-undefined

我已按要求添加了目标,但仍然出现相同的错误。

【问题讨论】:

    标签: node.js express node-http-proxy


    【解决方案1】:

    您需要将选项传递给 HttpProxy 构造函数,而不是 proxyRequest 函数。

    https://github.com/nodejitsu/node-http-proxy/blob/master/lib/node-http-proxy/http-proxy.js#L51

    【讨论】:

      【解决方案2】:

      另外,你可能一直想说var proxy = new httpProxy.RoutingProxy();

      【讨论】:

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