Proof of concept for connecting to Zoom's Server to Server Oauth App

zoom-server-to-server-example.php

<?php
// See https://marketplace.zoom.us/docs/guides/build/server-to-server-oauth-app/
// See 1PW for Credentials.
$client = \Drupal::httpClient();

$options = [
  'auth' => ['YOUR_CLIENT_ID', 'YOUR_CLIENT_SECRET'],
  'form_params' => [
    'account_id' => 'YOUR_ACCOUNT_ID',
    'grant_type' => 'account_credentials',
  ],
];
// Gets the bearer token.
$response = $client->post('https://zoom.us/oauth/token', $options);
$response_data = json_decode($response->getBody()->getContents(), TRUE);

// Note: Access Token has an expiration. Could be worth saving?
// Could also automatically retry on failure?
if (!isset($response_data['access_token'])) {
  // log something~!
}

// Add authorization header.
$options = [
  'headers' => [
    'Authorization' => 'Bearer ' . $response_data['access_token'],
  ],
];
$response = $client->get('https://api.zoom.us/v2/users', $options);
$response_data = json_decode($response->getBody()->getContents(), TRUE);

print_r($response_data);