如何将bodyParser上传限制设置为特定路由，而不是在中间件中全局设置? [英] How do I set the bodyParser upload limit to specific routes rather than globally in the middleware?

问题描述

以下是一个示例(Express 3)中间件设置，该设置在全球范围内对我有用:

Here's an example (Express 3) middleware setup thats worked for me globally:

app.configure(function () {
    app.use(express.static(__dirname + "/public"));
    app.use(express.bodyParser({
          keepExtensions: true,
          limit: 10000000, // set 10MB limit
          defer: true              
    }));
    //... more config stuff
}

出于安全原因，我不想要以便在除/upload 之外的其他路由上允许500GB以上的帖子，因此我试图找出如何指定特定路由的限制，而不是在中间件中进行全局限制.

For security reasons, I don't want to allow 500GB+ posts on routes other than /upload, so I'm trying to figure out how to specify the limit on specific routes, rather than globally in the middleware.

我知道bodyParser()中的多部分中间件已经嗅出了内容类型，但我想进一步限制它.

I know the multipart middleware in bodyParser() already sniffs out content types, but I want to limit it even further.

这似乎在快递3中无效:

This does not seem to work in express 3:

app.use('/', express.bodyParser({
  keepExtensions: true,
  limit: 1024 * 1024 * 10,
  defer: true              
}));
app.use('/upload', express.bodyParser({
  keepExtensions: true,
  limit: 1024 * 1024 * 1024 * 500,
  defer: true              
}));

当我尝试在 upload URL上上传3MB文件时，出现错误 Error:请求实体太大.

I get an error Error: Request Entity Too Large when I try to upload a 3MB file on the upload URL.

您如何正确执行此操作?

How do you do this correctly?

推荐答案

使用 app.use()时只需指定可选的路径选项.

Just specify the optional path option when using app.use().

app.use('/', express.bodyParser({
  keepExtensions: true,
  limit: 1024 * 1024 * 10,
  defer: true              
}));
app.use('/upload', express.bodyParser({
  keepExtensions: true,
  limit: 1024 * 1024 * 1024 * 500,
  defer: true              
}));

这篇关于如何将bodyParser上传限制设置为特定路由，而不是在中间件中全局设置?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！