nodejs http.get 响应中的 body 在哪里? [英] Where is body in a nodejs http.get response?

问题描述

我正在阅读 http://nodejs 上的文档.org/docs/v0.4.0/api/http.html#http.request，但由于某种原因，我似乎无法在返回的已完成响应对象上实际找到 body/data 属性.

I'm reading the docs at http://nodejs.org/docs/v0.4.0/api/http.html#http.request, but for some reason, I can't seem to to actually find the body/data attribute on the returned, finished response object.

> var res = http.get({host:'www.somesite.com', path:'/'})

> res.finished
true

> res._hasBody
true

它已经完成了(http.get 为你做的)，所以它应该有一些内容.但是没有实体，没有数据，我无法从中读取.尸体藏在哪里?

It's finished (http.get does that for you), so it should have some kind of content. But there's no body, no data, and I can't read from it. Where is the body hiding?

推荐答案

6年后回复自己

await 关键字 是从 HTTP 请求获得响应的最佳方式，避免回调和 .then()

您还需要使用返回 Promises 的 HTTP 客户端. http.get() 仍然返回一个 Request 对象，因此它不起作用.

You'll also need to use an HTTP client that returns Promises. http.get() still returns a Request object, so that won't work.

• fetch 是一个低级客户端，它既可以从 npm 获得，也可以在以后的 node 版本中使用
• superagent 是一个成熟的 HTTP 客户端，具有更合理的默认设置，包括更简单的查询字符串编码、正确使用 mime 类型、默认 JSON 以及其他常见的 HTTP 客户端功能.
• axios 也很流行，和 superagent
有类似的优势

• fetch is a low level client, that is both available from npm and will be in future versions of node
• superagent is a mature HTTP clients that features more reasonable defaults including simpler query string encoding, properly using mime types, JSON by default, and other common HTTP client features.
• axios is also quite popular and has similar advantages to superagent

await 将等到 Promise 具有值 - 在本例中为 HTTP 响应！

await will wait until the Promise has a value - in this case, an HTTP response!

const superagent = require('superagent');

(async function(){
  const response = await superagent.get('https://www.google.com')
  console.log(response.text)
})();

使用 await，一旦 superagent.get() 返回的承诺有值，控制只需传递到下一行.

Using await, control simply passes onto the next line once the promise returned by superagent.get() has a value.

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