Node（Express）请求主体为空 [英] Node (Express) request body empty

问题描述

我正在使用Node.JS和Restify在今天晚上使用一个简单的API，并通过 req.params.fieldname 接收参数的一切都很好。我安装了CouchDB和Cradle，以便开始尝试把这些参数放入一个数据库，但是在安装了所有的目录后，req.params开始返回空白！

我应该有由于其他原因，使用Express开始，所以我尝试切换到这一点，看看我能不能工作，但没有这样的运气。

  var express = require（'express'）; 
 var app = express.createServer（）; 
 
 app.configure（function（）{
 app.use（express.bodyParser（））; 
 app.use（express.cookieParser（））; 
 }）; 
 
 app.post（'/'，function（req，res）{
 res.send（req.body）; 
}）; 
 
 app.listen（8080，function（）{
 console.log（'Printomatic listening at'，app.url）; 
}）; 
  

我尝试过无数的变化，但无论什么req.body回来为空。我正在使用http-console来测试，并发送简单的 POST / 与内容 {name：foobar}

我很沮丧，在这一点上，我开始怀疑当安装Cradle / CouchDB（与NPM一起安装的时候）和Homebrew）。任何帮助将不胜感激，因为这有点时间敏感。感谢您的任何帮助！

解决方案

你提到你发布JSON数据（ {name ：foobar} ）。确保您发送 Content-Type：application / json ，或 bodyParser 将不会解析它。 p>

例如：

  $ curl -d'user [name] = tj 'http：// local / 
 $ curl -d'{user：{name：tj}}'-HContent-Type：application / jsonhttp：// local / 
  

这是因为 bodyParser parses application / json ， application / x-www-form-encoded 和 multipart / form-data ，它根据 Content-Type 选择使用哪个解析器。

I was working on a simple API using Node.JS and Restify tonight and had everything fine in terms of receiving parameters via req.params.fieldname. I installed CouchDB and Cradle in order to start trying to throw those parameters into a database, but after getting everything installed req.params started to come back empty!

I should have been using Express to begin with for other reasons, so I tried switching to that to see if I could get it working but no such luck.

var express = require('express');
var app = express.createServer();

app.configure(function(){
app.use(express.bodyParser());
app.use(express.cookieParser());
});

app.post('/', function(req, res){
  res.send(req.body);
});

app.listen(8080, function() {
  console.log('Printomatic listening at', app.url);
});

I've tried countless variations but no matter what req.body comes back empty. I'm using http-console to test, and sending things as simple as POST / with content {"name":"foobar"}

I'm so frustrated that at this point I'm beginning to wonder if I broke something when installing Cradle/CouchDB (which were installed with NPM and Homebrew, respectively). Any help would be greatly appreciated as this is somewhat time-sensitive. Thanks for any help in advance!

解决方案

You mention that you post JSON data ({"name": "foobar"}). Make sure that you send Content-Type: application/json with that, or bodyParser will not parse it.

E.g.:

$ curl -d 'user[name]=tj' http://local/
$ curl -d '{"user":{"name":"tj"}}' -H "Content-Type: application/json" http://local/

This is because bodyParser parses application/json, application/x-www-form-encoded and multipart/form-data, and it selects which parser to use based on the Content-Type.

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