Node.js req Json大小限制 [英] Nodejs req Json size limit

问题描述

我对nodeJS中的req对象有一个一般性的问题.假设我有一个代码，通过ajax post方法将json格式的数据发送到我的服务器.考虑一种情况，用户通过调用特定链接来更改我的客户端代码，该客户端代码将无限大的json文件发送到我的服务器，默认情况下，该链接被设计为具有特定格式的有限json数据.在这种情况下，我想知道如何防止此类黑客事件发生.

解决方案

有几种方法:

1. 添加身份验证
2. 配置Web服务器，例如Nginx具有client_max_body_size

3. 或使用您可以设置的中间件，如 body-parser : /p>

   var express = require('express') var bodyParser = require('body-parser')

   var app = express() app.use(bodyParser.json({limit:'5mb'}))

I have a general question regarding to req object in nodeJS. Assume that I have a code that send a data in json format to my sever via ajax post method. Consider a situation that user changes my client code that send infinitely large json file to my server by calling specific link that by default has been designed to have limited json data with specific format. In this case, I want to know how can I prevent such type of hacks happens.

解决方案

There are a few way:

1. Add authentication
2. Configure a web server, like Nginx has client_max_body_size

3. or use a middleware like body-parser which you can set:

   var express = require('express') var bodyParser = require('body-parser')

   var app = express() app.use(bodyParser.json({ limit: '5mb' }))

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