+ return $keypair;
+ }
+
+ /**
+ * Fetch the public VAPID key
+ *
+ * @return string
+ */
+ public static function getPublicVapidKey(): string
+ {
+ $keypair = self::getKeyPair();
+ return $keypair['publicKey'];
+ }
+
+ /**
+ * Fetch the public VAPID key
+ *
+ * @return string
+ */
+ public static function getPrivateVapidKey(): string
+ {
+ $keypair = self::getKeyPair();
+ return $keypair['privateKey'];