PHP Google API Client updating library problem

Question

I have to update the google/apiclient package 1.0.*@dev to ^2.2.

I had this code in version 1.0:

$this->_client = new Google_Client();
$this->_client->setAssertionCredentials(new Google_Auth_AssertionCredentials(
    '__ACCOUNT__',
    ["https://www.googleapis.com/auth/analytics.readonly"],
    file_get_contents('__PATH_TO_KEY__'))
);

$this->_client->setClientId('__CLIENT_ID__');
$this->_analytics = new Google_Service_Analytics($this->_client);

How can I replace this code for version 2.2?

Answer 1

The following code is from my sample project Oauth2Authentication.php

$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("https://www.googleapis.com/auth/analytics.readonly");
$client->setRedirectUri(getRedirectUri());

getOauth2Client()
$service = new Google_Service_Analytics($client);