How best to authenticate a user and use the user's session cookie in guzzle requests

In a client project I have a trait like this:

<?php

declare(strict_types=1);

namespace Drupal\Tests\my_module;

use GuzzleHttp\Cookie\CookieJar;
use Symfony\Component\BrowserKit\CookieJar as BrowserKitCookieJar;

trait SessionCookiesTestTrait {

  public function getSessionCookies(): CookieJar {
    /** @var \Behat\Mink\Driver\BrowserKitDriver $driver */
    $driver = $this->getSession()->getDriver();
    $cookieJar = $driver->getClient()->getCookieJar();
    $this->assertInstanceOf(BrowserKitCookieJar::class, $cookieJar);
    $domain = \parse_url($this->baseUrl, PHP_URL_HOST);
    \assert(\is_string($domain));
    return CookieJar::fromArray(
      $cookieJar->allRawValues($this->baseUrl),
      $domain,
    );
  }

}

Usage example:

\Drupal::service('http_client')->request('POST', $this->buildUrl($url), [
  'cookies' => $this->getSessionCookies(),
  'form_params' => ['ids' => $ids, 'tokens' => $tokens],
  'http_errors' => FALSE,
]);

Would something like that work for you? Would it make sense to include this in DTT?

Thanks mstrelan!

I think I'm missing something. How does this get the user session cookie?

Prior to the example usage, would you use UserCreationTrait::setUpCurrentUser() to create use and set as current user?

Sorry I omitted that. Essentially use \weitzman\DrupalTestTraits\Entity\UserCreationTrait::createUser and \Drupal\Tests\UiHelperTrait::drupalLogin.

Example:

$user = $this->createUser();
$user->addRole('MY_ROLE_ID');
$user->save();
$this->drupalLogin($user);

Thank you @mstrelan! This worked for my use case.

I don't think its quite necessary to consider adding this to DTT, but perhaps if the request comes up again, maybe.

Automatically closed - issue fixed for 2 weeks with no activity.