OAuh 2.0 - added getSubject function

src/main/scala/code/api/util/JwtUtil.scala

@@ -0,0 +1,64 @@
+package code.api.util
+
+import com.auth0.jwt.JWT
+
+object JwtUtil {
+
+  /**
+    * Getter for the Header contained in the JWT as a Base64 encoded String.
+    * This represents the first part of the token.
+    *
+    * @return the Header of the JWT.
+    */
+  def getHeader(jwtToken: String) = {
+    val jwtDecoded = JWT.decode(jwtToken)
+    jwtDecoded.getHeader()
+  }
+
+  /**
+    * Getter for the Payload contained in the JWT as a Base64 encoded String.
+    * This represents the second part of the token.
+    *
+    * @return the Payload of the JWT.
+    */
+  def getPayload(jwtToken: String) = {
+    val jwtDecoded = JWT.decode(jwtToken)
+    jwtDecoded.getPayload()
+  }
+
+  /**
+    * Getter for the Signature contained in the JWT as a Base64 encoded String.
+    * This represents the third part of the token.
+    *
+    * @return the Signature of the JWT.
+    */
+  def getSignature(jwtToken: String) = {
+    val jwtDecoded = JWT.decode(jwtToken)
+    jwtDecoded.getSignature()
+  }
+
+  /**
+    * Get the value of the "sub" claim, or None if it's not available.
+    *
+    * @return the Subject value or None.
+    */
+  def getSubject(jwtToken: String): Option[String] = {
+    val jwtDecoded = JWT.decode(jwtToken)
+    jwtDecoded.getSubject() match {
+      case null => None
+      case value => Some(value)
+    }
+  }
+
+
+  def main(args: Array[String]): Unit = {
+    val jwtToken = "eyJraWQiOiJyc2ExIiwiYWxnIjoiUlMyNTYifQ.eyJzdWIiOiJhZG1pbiIsImF6cCI6ImNsaWVudCIsImlzcyI6Imh0dHA6XC9cL2xvY2FsaG9zdDo4MDgwXC9vcGVuaWQtY29ubmVjdC1zZXJ2ZXItd2ViYXBwXC8iLCJleHAiOjE1MTk1MDMxODAsImlhdCI6MTUxOTQ5OTU4MCwianRpIjoiMmFmZjNhNGMtZjY5Zi00ZWM1LWE2MzEtYWUzMGYyYzQ4MjZiIn0.NwlK2EJKutaybB4YyEhuwb231ZNkD-BEwhScadcWWn8PFftjVyjqjD5_BwSiWHHa_QaESNPdZugAnF4I2DxtXmpir_x2fB2ch888AzXw6CgTT482I16m1jpL-2iSlQk1D-ZW6fJ2Qemdi3x2V13Xgt9PBvk5CsUukJ8SSqTPbSNNER9Nq2dlS-qQfg61TzhPkuuXDlmCQ3b8QHgUf6UnCfee1jRaohHQoCvJJJubmUI3dY0Df1ynTodTTZm4J1TV6Wp6ZhsPkQVmdBAUsE5kIFqADaE179lldh86-97bVHGU5a4aTYRRKoTPDltt1NvY5XJrjLCgZH8AEW7mOHz9mw"
+    println("Header: " + getHeader(jwtToken))
+    println("Payload: " + getPayload(jwtToken))
+    println("Subject: " + getSubject(jwtToken))
+    println("Signature :" + getSignature(jwtToken))
+  }
+
+}
+
+