Error 404 when accessing a file via a Service Account - php

Question

I have to read an excel file on google drive. I need to connect automatically to google drive without prompt any form... a bot must read document... I have this code:
$service_account_file = dirname(__FILE__) . '/key-85ac95ab1e62.json';
$spreadsheet_id = 'the_id_inside_the_url_of_the_file';
$spreadsheet_range = 'Sheet1!A1:A1';
putenv('GOOGLE_APPLICATION_CREDENTIALS=' . $service_account_file);
$client = new Google_Client();
$client->useApplicationDefaultCredentials();
$client->addScope(Google_Service_Sheets::SPREADSHEETS);
$service = new Google_Service_Sheets($client);
$result = $service->spreadsheets_values->get($spreadsheet_id, $spreadsheet_range);
var_dump($result->getValues());
Something goes wrong... I explain how I generated the key-*.json file:
On Google Console Developer i clicked on Service Account, then i created a new one and downloaded the json.. this json is the key-*.json file. I have added this file in my project (as you can see on first row)... Here i copied the Account Service Idthat I will use later...
Now I explain how I get the spreadheet_id... I went on my google drive, right click on the file and I shared it with the Account Service Id (copied before) and an url has been generated... if I copy and past the url in the browser everything works but not in the project... i take the spreadsheet_id from url
this is the error I receive :
PHP Fatal error: Uncaught Google_Service_Exception: {
"error": {
"code": 404,
"message": "Requested entity was not found.",
"errors": [
{
"message": "Requested entity was not found.",
"domain": "global",
"reason": "notFound
}
],
"status": "NOT_FOUND
}
}
What's wrong? the file exists and i cann see it in the browser using the same url I use in the php file... so I think it is a connection or login problem...
any idea?

Answer 1

This is the usual problem with Service Accounts. Refer to any of these https://stackoverflow.com/search?q=404+service+account
In simple terms a Service Account is NOT the same as the Google Account that you used to create it. Either don't use Service Accounts, or share the file from its own account to the Service Account to give it access.