diff --git a/android/app/build.gradle b/android/app/build.gradle
index 0eab8f5..c015307 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -45,4 +45,7 @@ dependencies {
     implementation 'androidx.navigation:navigation-ui-ktx:2.2.2'
     implementation "android.arch.navigation:navigation-fragment-ktx:2.2.2"
     implementation "android.arch.navigation:navigation-ui-ktx:2.2.2"
+
+    implementation 'com.squareup.retrofit2:retrofit:2.1.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.1.0'
 }
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 1e18427..88c9093 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="de.hft.geotracker">
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
         android:allowBackup="true"
@@ -8,8 +9,10 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:usesCleartextTraffic="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".Register"></activity>
+
+        <activity android:name=".Register" />
         <activity
             android:name=".Settings"
             android:label="@string/title_activity_settings" />
diff --git a/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt b/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt
new file mode 100644
index 0000000..c9faeb3
--- /dev/null
+++ b/android/app/src/main/java/de/hft/geotracker/GeofenceService.kt
@@ -0,0 +1,12 @@
+package de.hft.geotracker
+
+import retrofit2.Call
+import retrofit2.http.*
+
+interface GeofenceService {
+    @POST("/login")
+    fun login(@Body login_data : ValuesUserLogin) : Call<Void>
+
+
+
+}
\ No newline at end of file
diff --git a/android/app/src/main/java/de/hft/geotracker/JWToken.kt b/android/app/src/main/java/de/hft/geotracker/JWToken.kt
new file mode 100644
index 0000000..c9af2dd
--- /dev/null
+++ b/android/app/src/main/java/de/hft/geotracker/JWToken.kt
@@ -0,0 +1,3 @@
+package de.hft.geotracker
+
+data class JWToken (var token : String)
\ No newline at end of file
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 8fa2428..30af167 100644
--- a/android/app/src/main/java/de/hft/geotracker/Login.kt
+++ b/android/app/src/main/java/de/hft/geotracker/Login.kt
@@ -4,7 +4,13 @@ import android.content.Intent
 import android.os.Bundle
 import androidx.fragment.app.Fragment
 import android.widget.TextView
+import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
 
 /**
  * A simple [Fragment] subclass.
@@ -12,11 +18,22 @@ import androidx.appcompat.app.AppCompatActivity
 class Login  : AppCompatActivity() {
     lateinit var login : TextView
     lateinit var reg : TextView
+    lateinit var service : GeofenceService
+    lateinit var token : JWToken
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_login)
+
+        val retrofit = Retrofit.Builder()
+            .baseUrl("http://plesk.icaotix.de:5000")
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+        service = retrofit.create(GeofenceService::class.java)
+
         login = findViewById(R.id.button_create_account)
         login.setOnClickListener {
+            intent = Intent(this, MainActivity::class.java)
             login()
         }
         reg = findViewById(R.id.button_register)
@@ -31,7 +48,35 @@ class Login  : AppCompatActivity() {
     }
 
     private fun login() {
-        val intent = Intent(this, MainActivity::class.java)
-        startActivity(intent)
+        val name = findViewById<TextView>(R.id.setting_input_username).text.toString()
+        val pswd = findViewById<TextView>(R.id.input_password).text.toString()
+        var call= service.login(ValuesUserLogin(name, pswd))
+
+        call.enqueue(object : Callback<Void> {
+            override fun onResponse(call: Call<Void>?, response: Response<Void>?) {
+                if(response != null && response.isSuccessful) {
+                        var headers = response.headers()
+                        var authentication = headers.get("Authorization")
+
+                        token = JWToken(authentication)
+                        println(response.code())
+                        println(token.token)
+
+                        startActivity(intent)
+                } else {
+                    if (response != null) {
+                        println(response.code())
+                        Toast.makeText(this@Login, "Wrong Username or Password!", Toast.LENGTH_LONG).show()
+                    } else {
+                        println("Response is null")
+                    }
+                }
+            }
+
+            override fun onFailure(call: Call<Void>?, t: Throwable?) {
+                println("Error: ${t.toString()}")
+            }
+
+        })
     }
 }
diff --git a/android/app/src/main/java/de/hft/geotracker/ValuesUserLogin.kt b/android/app/src/main/java/de/hft/geotracker/ValuesUserLogin.kt
new file mode 100644
index 0000000..429b9b2
--- /dev/null
+++ b/android/app/src/main/java/de/hft/geotracker/ValuesUserLogin.kt
@@ -0,0 +1,12 @@
+package de.hft.geotracker
+
+import com.google.gson.annotations.SerializedName
+
+class ValuesUserLogin (name : String, pswd : String) {
+
+    @SerializedName("username")
+    var username = name
+    @SerializedName("password")
+    var password = pswd
+
+}
\ No newline at end of file