diff --git a/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt b/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt
index a30c052..31320ae 100644
--- a/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt
+++ b/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt
@@ -1,14 +1,13 @@
 package de.hft.geotracker
 
+import okhttp3.Authenticator
 import retrofit2.Call
-import retrofit2.http.GET
-import retrofit2.http.Path
-import retrofit2.http.Query
+import retrofit2.http.*
 
 interface GeofenceService {
-    @GET("/login?username=user&password=pw")
+    @POST("/login")
     fun login(@Query("user") user : String,
-              @Query("pw") password : String) : Call<String>
+              @Query("pw") password : String) : Call<Headers>
 
 
 
diff --git a/android/app/src/main/java/de/hft/geotracker/Login.kt b/android/app/src/main/java/de/hft/geotracker/Login.kt
index 2904a1c..153899f 100644
--- a/android/app/src/main/java/de/hft/geotracker/Login.kt
+++ b/android/app/src/main/java/de/hft/geotracker/Login.kt
@@ -9,12 +9,15 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import okhttp3.Authenticator
 import okhttp3.OkHttpClient
 import retrofit2.Call
 import retrofit2.Callback
 import retrofit2.Response
 import retrofit2.Retrofit
 import retrofit2.converter.gson.GsonConverterFactory
+import retrofit2.http.Header
+import retrofit2.http.Headers
 import java.net.HttpRetryException
 
 /**
@@ -51,21 +54,26 @@ class Login  : AppCompatActivity() {
     }
 
     private fun login() {
-        var call : Call<String> = service.login("wito","tobias")
-        call.enqueue(object : Callback<String> {
-            override fun onResponse(call: Call<String>?, response: Response<String>?) {
+        var call= service.login("wito","tobias")
+
+        call.enqueue(object : Callback<Headers> {
+            override fun onResponse(call: Call<Headers>?, response: Response<Headers>?) {
                 if(response != null && response.isSuccessful) {
-                    response.body()
-                    token = JWToken(call.toString())
+
+                    var headers = response.headers()
+                    var authentication = headers.get("Authorization")
+
+                    token = JWToken(authentication)
                     println("Erfolg")
                 } else {
                     println("Fehler1")
                 }
             }
 
-            override fun onFailure(call: Call<String>?, t: Throwable?) {
+            override fun onFailure(call: Call<Headers>?, t: Throwable?) {
                 println("Fehler2 ${t.toString()}")
             }
+
         })
 //        var token = call.execute().body()
 //        val intent = Intent(this, MainActivity::class.java)