This is documentation for the next version of K6. For the latest stable release, go to the latest version.

Documentation

headerValue(name)

Open source

headerValue(name)

Returns the value of the header matching the name. The name is case insensitive.

Returns

Type	Description
`Promise<string \| null>`	A promise that resolves to the value of the header matching the name, otherwise `null`.

Example

import { browser } from 'k6/browser';

export const options = {
  scenarios: {
    ui: {
      executor: 'shared-iterations',
      options: {
        browser: {
          type: 'chromium',
        },
      },
    },
  },
};

export default async function () {
  const page = await browser.newPage();

  try {
    const res = await page.goto('https://test.k6.io/');
    const req = res.request();

    const headerValue = await req.headerValue('accept-language');
    console.log(`headerValue: ${headerValue}`); // headerValue: en-US
  } finally {
    await page.close();
  }
}