diff --git a/src/main/scala/lc/core/config.scala b/src/main/scala/lc/core/config.scala
index cee03a4..3dc6f14 100644
--- a/src/main/scala/lc/core/config.scala
+++ b/src/main/scala/lc/core/config.scala
@@ -11,6 +11,7 @@ import java.io.{FileNotFoundException, File, PrintWriter}
 import java.{util => ju}
 import lc.misc.HelperFunctions
 
+
 class Config(configFilePath: String) {
 
   import Config.formats
@@ -41,16 +42,17 @@ class Config(configFilePath: String) {
     }
 
   private val configJson = parse(configString)
+  private val configFields: ConfigField = configJson.extract[ConfigField]
 
-  val port: Int = (configJson \ AttributesEnum.PORT.toString).extract[Int]
-  val address: String = (configJson \ AttributesEnum.ADDRESS.toString).extract[String]
-  val throttle: Int = (configJson \ AttributesEnum.THROTTLE.toString).extract[Int]
-  val seed: Int = (configJson \ AttributesEnum.RANDOM_SEED.toString).extract[Int]
-  val captchaExpiryTimeLimit: Int = (configJson \ AttributesEnum.CAPTCHA_EXPIRY_TIME_LIMIT.toString).extract[Int]
-  val threadDelay: Int = (configJson \ AttributesEnum.THREAD_DELAY.toString).extract[Int]
-  val playgroundEnabled: Boolean = (configJson \ AttributesEnum.PLAYGROUND_ENABLED.toString).extract[Boolean]
-  val corsHeader: String = (configJson \ AttributesEnum.CORS_HEADER.toString).extract[String]
-  val maxAttempts: Int = (configJson \ AttributesEnum.MAX_ATTEMPTS.toString).extract[Int]
+  val port: Int = configFields.portInt.getOrElse(8888)
+  val address: String = configFields.address.getOrElse("0.0.0.0")
+  val throttle: Int = configFields.throttleInt.getOrElse(1000)
+  val seed: Int = configFields.seedInt.getOrElse(375264328)
+  val captchaExpiryTimeLimit: Int = configFields.captchaExpiryTimeLimitInt.getOrElse(5)
+  val threadDelay: Int = configFields.threadDelayInt.getOrElse(2)
+  val playgroundEnabled: Boolean = configFields.playgroundEnabledBool.getOrElse(true)
+  val corsHeader: String = configFields.corsHeader.getOrElse("")
+  val maxAttempts: Int = configFields.maxAttemptsInt.getOrElse(10)
 
   private val captchaConfigJson = (configJson \ "captchas")
   val captchaConfigTransform: JValue = captchaConfigJson transformField { case JField("config", JObject(config)) =>
diff --git a/src/main/scala/lc/core/models.scala b/src/main/scala/lc/core/models.scala
index 121a1bf..f31f731 100644
--- a/src/main/scala/lc/core/models.scala
+++ b/src/main/scala/lc/core/models.scala
@@ -18,3 +18,26 @@ case class CaptchaConfig(
     allowedInputType: List[String],
     config: String
 )
+case class ConfigField(
+    port: Option[Integer],
+    address: Option[String],
+    throttle: Option[Integer],
+    seed: Option[Integer],
+    captchaExpiryTimeLimit: Option[Integer],
+    threadDelay: Option[Integer],
+    playgroundEnabled: Option[java.lang.Boolean],
+    corsHeader: Option[String],
+    maxAttempts: Option[Integer]
+    ){
+  lazy val portInt: Option[Int] = mapInt(port)
+  lazy val throttleInt: Option[Int] = mapInt(throttle)
+  lazy val seedInt: Option[Int] = mapInt(seed)
+  lazy val captchaExpiryTimeLimitInt: Option[Int] = mapInt(captchaExpiryTimeLimit)
+  lazy val threadDelayInt: Option[Int] = mapInt(threadDelay)
+  lazy val maxAttemptsInt: Option[Int] = mapInt(maxAttempts)
+  lazy val playgroundEnabledBool: Option[Boolean] = playgroundEnabled.map(_ || true)
+
+  private def mapInt(x: Option[Integer]): Option[Int] = {
+    x.map(_ + 0)
+  }
+}