如何测量 Node 中 http 请求的响应时间？

Question

我正在开发一个向不同网络服务发出http请求的解决方案，我需要测量响应时间（详细），我目前正在使用“node:https”模块，但我想知道是否有不是“请求”的库或包，因为它已被弃用，并且使用 axios 我还没有设法做到这一点

我在这里留下我使用的代码示例

import https from "node:https";

const NS_PER_SEC = 1e9;
const MS_PER_NS = 1e6;
const timings = {
  // use process.hrtime() as it's not a subject of clock drift
  startAt: process.hrtime(),
  dnsLookupAt: undefined,
  tcpConnectionAt: undefined,
  tlsHandshakeAt: undefined,
  firstByteAt: undefined,
  endAt: undefined,
};

let responseBody = "";

const req = https.request(
  {
    hostname: SERVICE_URL,
    port: 443,
    path: "/",
    method: "GET",
    timeout: 5000,

    headers: {
      "User-Agent":
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
      Accept: "*/*",
      "Accept-Language": "en-US,en;q=0.9",
      "Accept-Encoding": "gzip, deflate, br",
    },
  },
  onAnyMessage
);

async function onAnyMessage(res) {
  res.once("readable", () => {
    timings.firstByteAt = process.hrtime();
  });
  res.on("data", (chunk) => {
    responseBody += chunk;
  });
  res.on("end", () => {
    timings.endAt = process.hrtime();
    console.log(responseBody);
    console.log(getTimings(timings));
  });
}

function getTimings(eventTimes) {
  return {
    // There is no DNS lookup with IP address
    dnsLookup:
      eventTimes.dnsLookupAt !== undefined
        ? getHrTimeDurationInMs(eventTimes.startAt, eventTimes.dnsLookupAt)
        : undefined,
    tcpConnection: getHrTimeDurationInMs(
      eventTimes.dnsLookupAt || eventTimes.startAt,
      eventTimes.tcpConnectionAt
    ),
    // There is no TLS handshake without https
    tlsHandshake:
      eventTimes.tlsHandshakeAt !== undefined
        ? getHrTimeDurationInMs(
            eventTimes.tcpConnectionAt,
            eventTimes.tlsHandshakeAt
          )
        : undefined,
    firstByte: getHrTimeDurationInMs(
      eventTimes.tlsHandshakeAt || eventTimes.tcpConnectionAt,
      eventTimes.firstByteAt
    ),
    contentTransfer: getHrTimeDurationInMs(
      eventTimes.firstByteAt,
      eventTimes.endAt
    ),
    total: getHrTimeDurationInMs(eventTimes.startAt, eventTimes.endAt),
  };
}

/**
 * Get duration in milliseconds from process.hrtime()
 * @function getHrTimeDurationInMs
 * @param {Array} startTime - [seconds, nanoseconds]
 * @param {Array} endTime - [seconds, nanoseconds]
 * @return {Number} durationInMs
 */
function getHrTimeDurationInMs(startTime, endTime) {
  const secondDiff = endTime[0] - startTime[0];
  const nanoSecondDiff = endTime[1] - startTime[1];
  const diffInNanoSecond = secondDiff * NS_PER_SEC + nanoSecondDiff;

  return diffInNanoSecond / MS_PER_NS;
}

req.on("socket", (socket) => {
  socket.on("lookup", () => {
    timings.dnsLookupAt = process.hrtime();
  });
  socket.on("connect", () => {
    timings.tcpConnectionAt = process.hrtime();
  });
  socket.on("secureConnect", () => {
    timings.tlsHandshakeAt = process.hrtime();
  });
});

req.on("error", (err) => {
  console.log(err);
});

req.end();

Answer 1

got

提供计时：

import got from 'got';

const response = await got.get('https://stackoverflow.com');

console.log(response.timings);

结果：

{
  start: 1731862688177,
  socket: 1731862688178,
  lookup: 1731862688191,
  connect: 1731862689031,
  secureConnect: 1731862689048,
  upload: 1731862689048,
  response: 1731862689214,
  end: 1731862689228,
  error: undefined,
  abort: undefined,
  phases: {
    wait: 1,
    dns: 13,
    tcp: 840,
    tls: 17,
    request: 0,
    firstByte: 166,
    download: 14,
    total: 1051
  }
}