Node.js 请求对象文档?

声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow 原文地址: http://stackoverflow.com/questions/17251553/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me): StackOverFlow

提示:将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间:2020-09-02 14:52:40  来源:igfitidea点击:

Node.js request object documentation?

node.jsdocumentationrequest

提问by Benjamin Collins

This is a pretty straight forward question, but I haven't found anything on Google. I'm looking for documentation on the request parameter in Node.js's create server function, but I haven't been able to find anything.

这是一个非常直接的问题,但我在谷歌上没有找到任何东西。我正在寻找有关 Node.js 的 create server 函数中的 request 参数的文档,但找不到任何内容。

http.createServer(function(request, response){
  console.log(JSON.stringify(request));
});

Debugging with JSON.stringify() gives me an error, that the object is circular and the program stops. I've seen different things like request.url, or request.body, but is there a page documenting all of the request functions and parameters? It seems like it should be easy to find, I just can't seem to find it.

使用 JSON.stringify() 调试给我一个错误,该对象是圆形的并且程序停止。我见过不同的东西,比如request.url, or request.body,但是有没有记录所有请求函数和参数的页面?看起来应该很容易找到,我就是找不到。

I tried it again, and it turns out just doing console.log(request)writes out all of the data from the request. Here it is just as a reference:

我再次尝试,结果只是console.log(request)从请求中写出所有数据。这里只是作为参考:

ondata: [Function],
     _httpMessage:
      { domain: null,
        _events: [Object],
        _maxListeners: 10,
        output: [],
        outputEncodings: [],
        writable: true,
        _last: false,
        chunkedEncoding: false,
        shouldKeepAlive: true,
        useChunkedEncodingByDefault: true,
        sendDate: true,
        _hasBody: true,
        _trailer: '',
        finished: false,
        _hangupClose: false,
        socket: [Circular],
        connection: [Circular] } },
  connection:
   { _connecting: false,
     _handle:
      { fd: null,
        writeQueueSize: 0,
        owner: [Circular],
        onread: [Function: onread],
        reading: true },
     _readableState:
      { highWaterMark: 16384,
        buffer: [],
        length: 0,
        pipes: null,
        pipesCount: 0,
        flowing: false,
        ended: false,
        endEmitted: false,
        reading: true,
        calledRead: true,
        sync: false,
        needReadable: true,
        emittedReadable: false,
        readableListening: false,
        objectMode: false,
        defaultEncoding: 'utf8',
        ranOut: false,
        awaitDrain: 0,
        readingMore: false,
        decoder: null,
        encoding: null },
     readable: true,
     domain: null,
     _events:
      { end: [Object],
        finish: [Function: onSocketFinish],
        _socketEnd: [Function: onSocketEnd],
        drain: [Function: ondrain],
        timeout: [Function],
        error: [Function],
        close: [Object] },
     _maxListeners: 10,
     _writableState:
      { highWaterMark: 16384,
        objectMode: false,
        needDrain: false,
        ending: false,
        ended: false,
        finished: false,
        decodeStrings: false,
        defaultEncoding: 'utf8',
        length: 0,
        writing: false,
        sync: true,
        bufferProcessing: false,
        onwrite: [Function],
        writecb: null,
        writelen: 0,
        buffer: [] },
     writable: true,
     allowHalfOpen: true,
     onend: [Function],
     destroyed: false,
     errorEmitted: false,
     bytesRead: 357,
     _bytesDispatched: 0,
     _pendingData: null,
     _pendingEncoding: '',
     server:
      { domain: null,
        _events: [Object],
        _maxListeners: 10,
        _connections: 1,
        connections: [Getter/Setter],
        _handle: [Object],
        _usingSlaves: false,
        _slaves: [],
        allowHalfOpen: true,
        httpAllowHalfOpen: false,
        timeout: 120000,
        _connectionKey: '4:0.0.0.0:1337' },
     _idleTimeout: 120000,
     _idleNext:
      { _idleNext: [Circular],
        _idlePrev: [Circular],
        msecs: 120000,
        ontimeout: [Function: listOnTimeout] },
     _idlePrev:
      { _idleNext: [Circular],
        _idlePrev: [Circular],
        msecs: 120000,
        ontimeout: [Function: listOnTimeout] },
     _idleStart: 1371952289619,
     parser:
      { _headers: [],
        _url: '',
        onHeaders: [Function: parserOnHeaders],
        onHeadersComplete: [Function: parserOnHeadersComplete],
        onBody: [Function: parserOnBody],
        onMessageComplete: [Function: parserOnMessageComplete],
        socket: [Circular],
        incoming: [Circular],
        maxHeaderPairs: 2000,
        onIncoming: [Function] },
     ondata: [Function],
     _httpMessage:
      { domain: null,
        _events: [Object],
        _maxListeners: 10,
        output: [],
        outputEncodings: [],
        writable: true,
        _last: false,
        chunkedEncoding: false,
        shouldKeepAlive: true,
        useChunkedEncodingByDefault: true,
        sendDate: true,
        _hasBody: true,
        _trailer: '',
        finished: false,
        _hangupClose: false,
        socket: [Circular],
        connection: [Circular] } },
  httpVersion: '1.1',
  complete: false,
  headers:
   { host: 'localhost:1337',
     connection: 'keep-alive',
     'cache-control': 'max-age=0',
     accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
     'user-agent': 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like
 Gecko) Chrome/27.0.1453.116 Safari/537.36',
     'accept-encoding': 'gzip,deflate,sdch',
     'accept-language': 'en-US,en;q=0.8,ja;q=0.6' },
  trailers: {},
  _pendings: [],
  _pendingIndex: 0,
  url: '/',
  method: 'GET',
  statusCode: null,
  client:
   { _connecting: false,
     _handle:
      { fd: null,
        writeQueueSize: 0,
        owner: [Circular],
        onread: [Function: onread],
        reading: true },
     _readableState:
      { highWaterMark: 16384,
        buffer: [],
        length: 0,
        pipes: null,
        pipesCount: 0,
        flowing: false,
        ended: false,
        endEmitted: false,
        reading: true,
        calledRead: true,
        sync: false,
        needReadable: true,
        emittedReadable: false,
        readableListening: false,
        objectMode: false,
        defaultEncoding: 'utf8',
        ranOut: false,
        awaitDrain: 0,
        readingMore: false,
        decoder: null,
        encoding: null },
     readable: true,
     domain: null,
     _events:
      { end: [Object],
        finish: [Function: onSocketFinish],
        _socketEnd: [Function: onSocketEnd],
        drain: [Function: ondrain],
        timeout: [Function],
        error: [Function],
        close: [Object] },
     _maxListeners: 10,
     _writableState:
      { highWaterMark: 16384,
        objectMode: false,
        needDrain: false,
        ending: false,
        ended: false,
        finished: false,
        decodeStrings: false,
        defaultEncoding: 'utf8',
        length: 0,
        writing: false,
        sync: true,
        bufferProcessing: false,
        onwrite: [Function],
        writecb: null,
        writelen: 0,
        buffer: [] },
     writable: true,
     allowHalfOpen: true,
     onend: [Function],
     destroyed: false,
     errorEmitted: false,
     bytesRead: 357,
     _bytesDispatched: 0,
     _pendingData: null,
     _pendingEncoding: '',
     server:
      { domain: null,
        _events: [Object],
        _maxListeners: 10,
        _connections: 1,
        connections: [Getter/Setter],
        _handle: [Object],
        _usingSlaves: false,
        _slaves: [],
        allowHalfOpen: true,
        httpAllowHalfOpen: false,
        timeout: 120000,
        _connectionKey: '4:0.0.0.0:1337' },
     _idleTimeout: 120000,
     _idleNext:
      { _idleNext: [Circular],
        _idlePrev: [Circular],
        msecs: 120000,
        ontimeout: [Function: listOnTimeout] },
     _idlePrev:
      { _idleNext: [Circular],
        _idlePrev: [Circular],
        msecs: 120000,
        ontimeout: [Function: listOnTimeout] },
     _idleStart: 1371952289619,
     parser:
      { _headers: [],
        _url: '',
        onHeaders: [Function: parserOnHeaders],
        onHeadersComplete: [Function: parserOnHeadersComplete],
        onBody: [Function: parserOnBody],
        onMessageComplete: [Function: parserOnMessageComplete],
        socket: [Circular],
        incoming: [Circular],
        maxHeaderPairs: 2000,
        onIncoming: [Function] },
     ondata: [Function],
     _httpMessage:
      { domain: null,
        _events: [Object],
        _maxListeners: 10,
        output: [],
        outputEncodings: [],
        writable: true,
        _last: false,
        chunkedEncoding: false,
        shouldKeepAlive: true,
        useChunkedEncodingByDefault: true,
        sendDate: true,
        _hasBody: true,
        _trailer: '',
        finished: false,
        _hangupClose: false,
        socket: [Circular],
        connection: [Circular] } },
  _consuming: false,
  _dumped: false,
  httpVersionMajor: 1,
  httpVersionMinor: 1,
  upgrade: false }

回答by Delio

I'm not sure if this is a correct reply as it seems straightforward to me, but did you have a look at http://nodejs.org/api/http.html#http_http_incomingmessage?

我不确定这是否是正确的回复,因为对我来说似乎很简单,但是您是否查看过 http://nodejs.org/api/http.html#http_http_incomingmessage

Request is instance of the above object. By the way, if you really want to see what's inside that object with "brute force," you should not parse it, as it will not be a JSON string at all, but instead do something like:

请求是上述对象的实例。顺便说一句,如果您真的想用“蛮力”查看该对象内部的内容,则不应解析它,因为它根本不是 JSON 字符串,而是执行以下操作:

for (i in request) {
  //Your code here
}

Hope it helps.

希望能帮助到你。

回答by shaunlim

Just to add on, as a relative newbie in Node.js, I find it confusing that each framework has its own implementation of a "request" object.

补充一点,作为 Node.js 的相对新手,我发现每个框架都有自己的“请求”对象实现令人困惑。

For example,

例如,

Express: http://expressjs.com/api.html#req.param

快递:http: //expressjs.com/api.html#req.param

and

Hapi: http://spumko.github.io/resource/api/#request-object(just to note that the raw request object is still available in request.raw.req)

Hapi:http: //spumko.github.io/resource/api/#request-object(只是要注意原始请求对象在request.raw.req中仍然可用)

Some libraries assume the presence of Express' "req.param" method, and fail when used in non-Express projects.

一些库假定存在 Express 的“req.param”方法,并且在非 Express 项目中使用时失败。

回答by Frederick G. Sandalo

I agree with Delio, the Request object is of type IncomingMessage object, which is created by http.ClientRequest.

我同意 Delio,Request 对象是 IncomingMessage 对象类型,它是由 http.ClientRequest 创建的。