Podio API - Session Management class error in accessing tokens in Redis - podio

Question

I'm trying to use Session Management for API calls, so I don't trigger Auth class function everytime my script run. I mostly used App ID authentication so I used the sample provided for Redis.
However, I'm getting an error "Fatal error: Uncaught Error: Cannot access self:: when no class scope is active in /var/www/html/authcheck.php:22 Stack trace: #0 {main} thrown in /var/www/html/authcheck.php on line 22"
The code in line 22 is this - Podio::$oauth = self::$session_manager->get(Podio::$auth_type);
Here's the PHP Script for Session manager class:
Filename: SessionManager.php
<?php
require ('podio/podio_lib/PodioAPI.php');
require ('predis/autoload.php');
class PodioRedisSession {
/**
* Create a pointer to Redis when constructing a new object
*/
public function __construct() {
$this->redis = new Predis\Client();
}
/**
* Get oauth object from session, if present. We use $auth_type as
* basis for the cache key.
*/
public function get($auth_type = null) {
// If no $auth_type is set, just return empty
// since we won't be able to find anything.
if (!$auth_type) {
return new PodioOauth();
}
$cache_key = "podio_cache_".$auth_type['type']."_".$auth_type['identifier'];
// Check if we have a stored session
if ($this->redis->exists($cache_key)) {
// We have a session, create new PodioOauth object and return it
$cached_value = $this->redis->hgetall($cache_key);
return new PodioOAuth(
$cached_value['access_token'],
$cached_value['refresh_token'],
$cached_value['expires_in'],
array("type"=>$cached_value['ref_type'], "id"=>$cached_value['ref_id'])
);
}
// Else return an empty object
return new PodioOAuth();
}
/**
* Store the oauth object in the session. We ignore $auth_type since
* it doesn't work with server-side authentication.
*/
public function set($oauth, $auth_type = null) {
$cache_key = "podio_cache_".$auth_type['type']."_".$auth_type['identifier'];
// Save all properties of the oauth object in redis
$this->redis->hmset = array(
'access_token' => $oauth->access_token,
'refresh_token' => $oauth->refresh_token,
'expires_in' => $oauth->expires_in,
'ref_type' => $oauth->ref["type"],
'ref_id' => $oauth->ref["id"],
);
}
}
?>
Filename: authcheck.php
<?php
require ('podio/podio_lib/PodioAPI.php');
include ('SessionManager.php');
$client_id = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
$client_secret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxx";
$app_id = "xxxxxxxxxxx";
$app_token = "xxxxxxxxxxxxxxxxxxx";
Podio::setup($client_id, $client_secret, array(
"session_manager" => "PodioRedisSession"
));
// podio-php will attempt to find a session automatically, but will fail
because
// it doesn't know which $auth_type to use.
// So we must attempt to locate a session manually.
Podio::$auth_type = array(
"type" => "app",
"identifier" => $app_id
);
Podio::$oauth = self::$session_manager->get(Podio::$auth_type);
// Now we can check if anything could be found in the cache and
// authenticate if it couldn't
if (!Podio::is_authenticated()) {
// No authentication found in session manager.
// You must re-authenticate here.
Podio::authenticate_with_app($app_id, $app_token);
} else {
//echo "<pre>".print_r($_SESSION, true)."</pre>";
echo "You already authenticated!";
}
// // We can safely switch to another app now
// // First attempt to get authentication from cache
// // If that fails re-authenticate
// Podio::$auth_type = array(
// "type" => "app",
// "identifier" => $another_app_id
// );
// Podio::$oauth = self::$session_manager->get(Podio::$auth_type);
// if (!Podio::is_authenticated()) {
// // No authentication found in session manager.
// // You must re-authenticate here.
// Podio::authenticate_with_app($another_app_id, $another_app_token);
// }
?>

Answer 1

Hi opted not to use redis instead I used session and PDO Mysql on storing podio auth.