I want to connect -any- customer Google AdWords Account with Google Login. (Like Wordstream)

I prepared a code, but there is a problem somewhere, I can't run it.

When the customer press the connect button, the screen appears. It says "XXX wants to acces your Google Account", it is approved but I cannot receive data.

How can i get datas from customer's account?

Code:

require 'google-api/vendor/autoload.php'; use Google\Auth\OAuth2; use Google\AdsApi\AdWords\AdWordsServices; use Google\AdsApi\AdWords\AdWordsSessionBuilder; use Google\AdsApi\AdWords\v201809\cm\CampaignService; use Google\AdsApi\Common\OAuth2TokenBuilder; session_start(); $oauth2 = new OAuth2([          'authorizationUri' => 'https://accounts.google.com/o/oauth2/v2/auth',     'tokenCredentialUri' => 'https://www.googleapis.com/oauth2/v4/token',     'redirectUri' => 'https://xxxxx.xxxxxx',     'clientId' => 'xxxxxxxxx.apps.googleusercontent.com',     'clientSecret' => 'xxxxxxxxxxx',     'scope' => 'https://www.googleapis.com/auth/adwords',     'refresh_token' => 'xxxxxxxxxx' ]); if(!isset($_GET['code'])){          $oauth2->setState(sha1(openssl_random_pseudo_bytes(1024)));     $_SESSION['oauth2state'] = $oauth2->getState();     $config = [              'access_type' => 'offline',         'prompt' => 'consent',     ];          header('Location: ' . $oauth2->buildFullAuthorizationUri($config));     exit;    } elseif (empty($_GET['state']) || ($_GET['state'] !== $_SESSION['oauth2state'])){          unset($_SESSION['oauth2state']);     exit('Invalid state.');    } else {          $oauth2->setCode($_GET['code']);     $authToken = $oauth2->fetchAuthToken();     $refreshToken = $authToken['refresh_token'];          $path = "xxxxx/google-api/vendor/adsapi_php.ini";     $session = (new AdWordsSessionBuilder())         ->fromFile($path)         ->withOAuth2Credential($oauth2)         ->build();          $adWordsServices = new AdWordsServices();          $campaignService = $adWordsServices->get($session, CampaignService::class);          print_r($campaignService); } 

During checking traffic source on e-commerce website i get confused.

I know that param gclid=.. means that user is tagged by GoogleAds, while fbclid works the same way but with facebook.

However, I dont understand what does it mean while they are both together in single url, like: www.example.com?gclid=CjwKCAiAyrXiBRAjEiwATI95mafT26kwak0CFBgICH0ZlLqafSBuyyoUBVZihf22pPdG9QK8DUmiZBoCh8YQAvD_BwE&gclsrc=aw.ds&fbclid=IwAR0oihEZbw0Q43GXiv4YW9n_G9odTEcpxzLtMxjYYqgrTt5EM-BcKqrJyuU

Is it possible that google ads is displaying ads on facebook and that is why gclid and fbclid are attached to url at the same time?

Is there any UI view to send some input parameters to an Ads-script?

In the documentation I see it's only hard-coding inside the script?

I write my first *.gs file of Google Ads-script.

Is there any IDE or environment where I can add breakpoints or see the variables state?

I saw only logger printing, but that's not efficient to work with.

I have tried @Andrew's reply, but didn't manage:

When I run an ads-script to call the app-script::spreadsheet API, I get the following error:

var sheet = SpreadsheetApp.openByUrl(SPREADSHEET_URL); var rangeValues = sheet.getRange(1, 1, sheet.getLastRow(), sheet.getLastColumn()).getValues(); ==> Cannot find method getRange(number,number,number,number) 

How can it be? Only a subset of the app-script sheet api is available from ads-script?