diff --git a/OAuth2Client.php b/OAuth2Client.php
index 83f65cc..d69414d 100644
--- a/OAuth2Client.php
+++ b/OAuth2Client.php
@@ -17,31 +17,22 @@ class OAuth2 {
 	private $grant_type;
 	private $response_type;
 
-	public function __construct(
-		$client_id, 
-		$client_secret, 
-		$redirect_uri, 
-		$auth, 
-		$token, 
-		$user, 
-		$authorization_type = 'Bearer', 
-		$session = false, 
-		$verify = false, 
-		$grant_type = 'authorization_code',
-		$response_type = 'code'){
+	public function __construct($params){
 
-		$this->client_id 	   = $client_id;
-		$this->client_secret   = $client_secret;
-		$this->redirect_uri    = $redirect_uri;
-		$this->URL_AUTH 	   = $auth . "?";
-		$this->URL_TOKEN 	   = $token . "?";
-		$this->URL_USER 	   = $user . "?";
-		$this->auth_type 	   = $authorization_type;
-		$this->session 		   = $session;
-		$this->verify_ssl_peer = $verify ? 1 : 0;
-		$this->verify_ssl_host = $verify ? 2 : 0;
-		$this->grant_type 	   = $grant_type;
-		$this->response_type   = $response_type;
+		/* REQUIRED */
+		$this->client_id 	   = $params["client_id"];
+		$this->client_secret   = $params["client_secret"];
+		$this->redirect_uri    = $params["redirect_uri"];
+		$this->URL_AUTH 	   = $params["auth"] . "?";
+		$this->URL_TOKEN 	   = $params["token"] . "?";
+
+		/* OPTIONAL */
+		$this->auth_type 	   = isset($params["authorization_type"]) ? $params["authorization_type"] : "Bearer";
+		$this->session 		   = isset($params["session"]) ? $params["session"] : false;
+		$this->verify_ssl_peer = isset($params["verify"]) ? ($params["verify"] ? 1 : 0) : 1;
+		$this->verify_ssl_host = $this->verify_ssl_peer === 1 ? 2 : 0;
+		$this->grant_type 	   = isset($params["grant_type"]) ? $params["grant_type"] : "authorization_code";
+		$this->response_type   = isset($params["response_type"]) ? $params["response_type"] : "code";
 	}
 
 	public function get_access_token($state = false) {
@@ -77,12 +68,12 @@ class OAuth2 {
 		return $access_token;
 	}
 
-	public function get_identity($access_token) {
+	public function get_identity($access_token, $identity_url) {
 		$params = array(
 			'access_token' => $access_token,
 		);
 		$url_params = http_build_query($params);
-		$url 		= $this->URL_USER . $url_params;
+		$url 		= $identity_url . "?" . $url_params;
 		$result 	= curl_exec($this->create_curl($url, array('Authorization: ' . $this->auth_type . ' ' . $access_token), false));
 		$result_obj = json_decode($result, true);
 
diff --git a/README.md b/README.md
index c61d9ee..2d64254 100644
--- a/README.md
+++ b/README.md
@@ -2,24 +2,34 @@
 
 To use this general OAuth2 client-class, include it with
 ``` require_once('OAuth2Client.php'); 
-	$oauth2 = new OAuth2( $client_id, $client_secret, $redirect_uri, $auth, $token, $user, $authorization_type, $session, $verify, $grant_type, $response_type);
+	$oauth2 = new OAuth2([
+		"client_id" 		 => $client_id,
+		"client_secret" 	 => $client_secret,
+		"redirect_uri" 		 => $redirect_uri, 
+		"auth" 				 => $auth, 
+		"token" 			 => $token,
+		"authorization_type" => $authorization_type, 
+		"session" 			 => $session, 
+		"verify" 			 => $verify, 
+		"grant_type" 		 => $grant_type, 
+		"response_type" 	 => $response_type 
+	]);
 ```
 
-$client_id is client id of the OAuth2 application
-$client_secret is client secret of the OAuth2 application
-$redirect_uri is the specified redirect-uri for the OAuth2 application
-$auth is the full url for authorization
-$token is the full token url
-$user is the full identity url (example: https://auth.dataporten.no/userinfo)
+(string) $client_id is client id of the OAuth2 application
+(string) $client_secret is client secret of the OAuth2 application
+(string) $redirect_uri is the specified redirect-uri for the OAuth2 application
+(string) $auth is the full url for authorization
+(string) $token is the full token url
 
 
 Optional - 
 
-$authorization_type defaults to Bearer
-$session specifies whether the state is to be saved in _SESSION storage, defaults to false
-$verify is whether to verify SSL of host and peer, defaults to false
-$grant_type defaults to 'authorization_code'
-$response_type defaults to 'code'
+(string) $authorization_type defaults to Bearer
+(boolean) $session specifies whether the state is to be saved in _SESSION storage, defaults to false
+(boolean) $verify is whether to verify SSL of host and peer, defaults to true
+(string) $grant_type defaults to 'authorization_code'
+(string) $response_type defaults to 'code'
 
 
 To start the redirect phase
@@ -40,7 +50,9 @@ returns the access_token.
 
 To get identity
 
-``` $oauth->get_identity($access_token); ```
+``` $oauth->get_identity($access_token, $user_url); ```
+
+(string) $user_url is the endpoint for fetching info, example: https://auth.dataporten.no/userinfo
 
 returns the identity-object as returned from the OAuth2-provider.