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size()

Similar to Playwright’s request.sizes(), this method returns the size (in bytes) of body and header sections of the Request.

Returns

TypeDescription
PromiseReturns Size.

Size

PropertyTypeDescription
bodynumberSize in bytes of the request body.
headersnumberSize in bytes of the headers body.

Example

JavaScript
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 size = req.size();
    console.log(`size: ${JSON.stringify(size)}`); // size: {"headers":344,"body":0}
  } finally {
    await page.close();
  }
}