asyncRequest( method, url, [body], [params] )

参数	类型	描述
method	string	请求方法（例如 `'POST'`）。必须为大写。
url	string / HTTP URL	请求 URL（例如 `'http://example.com'`）。
body (可选)	string / object / ArrayBuffer	请求体。对象将进行 `x-www-form-urlencoded` 编码。
params (可选)	object	包含附加请求参数的Params 对象。

返回值

类型	描述
Promise with Response	HTTP Response 对象。

示例

使用 http.asyncRequest() 发起 POST 请求

import http from 'k6/http';

const url = 'https://quickpizza.grafana.com/api/post';

export default async function () {
  const data = { name: 'Bert' };

  // Using a JSON string as body
  const res = await http.asyncRequest('POST', url, JSON.stringify(data), {
    headers: { 'Content-Type': 'application/json' },
  });
  console.log(res.json().name); // Bert

  // Using an object as body, the headers will automatically include
  // 'Content-Type: application/x-www-form-urlencoded'.
  await http.asyncRequest('POST', url, data);
}

使用 http.asyncRequest() 发起多个请求，然后使用 Promise.race 确定哪些请求先完成

import http from 'k6/http';

export default async () => {
  const urlOne = `https://quickpizza.grafana.com/api/delay/${randomInt(1, 5)}`;
  const urlTwo = `https://quickpizza.grafana.com/api/delay/${randomInt(1, 5)}`;
  const urlThree = `https://quickpizza.grafana.com/api/delay/${randomInt(1, 5)}`;

  const one = http.asyncRequest('GET', urlOne);
  const two = http.asyncRequest('GET', urlTwo);
  const three = http.asyncRequest('GET', urlThree);

  console.log('Racing:');
  console.log(urlOne);
  console.log(urlTwo);
  console.log(urlThree);

  const res = await Promise.race([one, two, three]);
  console.log('winner is', res.url, 'with duration of', res.timings.duration + 'ms');
};

function randomInt(min, max) {
  return Math.floor(Math.random() * (max - min) + min);
}