Error 400: Invalid prompt for Google Calendar API PHP

Question

I'm using the codes from Google documentation. Link

My codes are like this,

$client = new Google_Client();
$client->setApplicationName('Google Calendar API PHP Quickstart');
$client->setScopes(Google_Service_Calendar::CALENDAR_READONLY);
$client->setAuthConfig('credentials.json');
$client->setAccessType('offline');
$client->setPrompt('select_account consent');

But when I run this, it's giving an error.

400. That’s an error.
Error: invalid_request
Invalid parameter value for prompt: Invalid prompt: select_account consent/calendar

Please help.
Thanks in advance.

Answer 1

If you check the source code for the libraryclient.php

   /**
   * Set the prompt hint. Valid values are none, consent and select_account.
   * If no value is specified and the user has not previously authorized
   * access, then the user is shown a consent screen.
   * @param $prompt string
   */
  public function setPrompt($prompt)
  {
    $this->config['prompt'] = $prompt;
  }

I dont think you can have both i think you should be setting it to one or the other

$client->setPrompt('consent');

which would imply that there is a bug in the tutorial you are following.

My code

    $client = new Google_Client();
    $client->setAccessType("offline");        // offline access.  Will result in a refresh token
    $client->setIncludeGrantedScopes(true);   // incremental auth
    $client->setAuthConfig(__DIR__ . '/client_secrets.json');
    $client->addScope(Google_Service_Calendar::CALENDAR_READONLY);
    $client->setRedirectUri(getRedirectUri());  

my code Oauth2Authentication.php and oauth2callback.php