diff --git a/src/main/kotlin/de/thk/gm/gdw/todolist/controllers/TasksController.kt b/src/main/kotlin/de/thk/gm/gdw/todolist/controllers/TasksController.kt
index b76bcdca453b03258b339af01455fde97d7aa771..34d0eed17e2261183339bd358ae1b091003cc790 100644
--- a/src/main/kotlin/de/thk/gm/gdw/todolist/controllers/TasksController.kt
+++ b/src/main/kotlin/de/thk/gm/gdw/todolist/controllers/TasksController.kt
@@ -2,18 +2,15 @@ package de.thk.gm.gdw.todolist.controllers
 
 import de.thk.gm.gdw.todolist.models.Task
 import de.thk.gm.gdw.todolist.repositories.TasksRepository
-import de.thk.gm.gdw.todolist.services.TasksService
 import org.springframework.data.repository.findByIdOrNull
 import org.springframework.http.HttpStatus
 import org.springframework.stereotype.Controller
 import org.springframework.web.bind.annotation.*
-import org.springframework.web.server.ResponseStatusException
 import java.util.*
 import kotlin.collections.ArrayList
 
 @Controller
-class TasksController (private val tasksService: TasksService) {
-
+class TasksController (private val tasksRepository: TasksRepository) {
 
     @PostMapping("/tasks")
     @ResponseBody
@@ -21,44 +18,34 @@ class TasksController (private val tasksService: TasksService) {
     fun saveTask(name : String) {
         var task = Task()
         task.name = name
-        tasksService.save(task)
+        tasksRepository.save(task)
+
     }
 
     @GetMapping("/tasks")
     @ResponseBody
     fun getTasks() : String {
-        var tasks = tasksService.getAll()
+        val tasks = tasksRepository.findByOpenTrue()
         return tasks.joinToString(",")
     }
 
     @GetMapping("/tasks/{id}")
     @ResponseBody
     fun getTaskById(@PathVariable("id") id : UUID) : String {
-        val task : Task? = tasksService.getById(id)
-        if(task == null) {
-            throw ResponseStatusException(HttpStatus.NOT_FOUND, "Task not found")
-        }
+        val task : Task? = tasksRepository.findByIdOrNull(id)
         return task!!.name
     }
 
     @PutMapping("/tasks/{id}")
     @ResponseStatus(HttpStatus.NO_CONTENT)
     fun updateTask(@PathVariable("id") id : UUID, name : String) {
-        val task : Task? = tasksService.getById(id)
-        if(task == null) {
-            throw ResponseStatusException(HttpStatus.NOT_FOUND, "Task not found")
-        }
+        val task : Task? = tasksRepository.findByIdOrNull(id)
         task!!.name = name
-        tasksService.save(task)
     }
 
     @DeleteMapping("/tasks/{id}")
     @ResponseStatus(HttpStatus.NO_CONTENT)
     fun deleteTask(@PathVariable("id") id : UUID) {
-        val task : Task? = tasksService.getById(id)
-        if(task == null) {
-            throw ResponseStatusException(HttpStatus.NOT_FOUND, "Task not found")
-        }
-        tasksService.delete(id)
+        tasksRepository.deleteById(id)
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/de/thk/gm/gdw/todolist/services/TaskServiceImplExternal.kt b/src/main/kotlin/de/thk/gm/gdw/todolist/services/TaskServiceImplExternal.kt
deleted file mode 100644
index bd62108755adf03fe070a4bfc21862f83f796cc7..0000000000000000000000000000000000000000
--- a/src/main/kotlin/de/thk/gm/gdw/todolist/services/TaskServiceImplExternal.kt
+++ /dev/null
@@ -1,43 +0,0 @@
-package de.thk.gm.gdw.todolist.services
-
-import de.thk.gm.gdw.todolist.models.Task
-import org.springframework.http.HttpStatus
-import org.springframework.stereotype.Service
-import org.springframework.web.server.ResponseStatusException
-import java.net.URI
-import java.net.http.HttpClient
-import java.net.http.HttpRequest
-import java.net.http.HttpResponse
-import java.util.*
-
-@Service
-class TaskServiceImplExternal : TasksService {
-    override fun getAll(): List<Task> {
-        TODO("Not yet implemented")
-    }
-
-    override fun getAll(open: Boolean): List<Task> {
-        TODO("Not yet implemented")
-    }
-
-    override fun getById(id: UUID): Task? {
-        TODO("Not yet implemented")
-    }
-
-    override fun save(task: Task): Task {
-        val client = HttpClient.newBuilder().build();
-        val request = HttpRequest.newBuilder().POST(HttpRequest.BodyPublishers.ofString(task.toString()))
-            .uri(URI.create("https://cloud-database.org/tasks")).build()
-        val response = client.send(request, HttpResponse.BodyHandlers.ofString())
-        if(response.statusCode() == 201) {
-            return task
-        } else {
-            throw ResponseStatusException(HttpStatus.BAD_REQUEST)
-        }
-
-    }
-
-    override fun delete(id: UUID) {
-        TODO("Not yet implemented")
-    }
-}
\ No newline at end of file
diff --git a/src/main/kotlin/de/thk/gm/gdw/todolist/services/TasksService.kt b/src/main/kotlin/de/thk/gm/gdw/todolist/services/TasksService.kt
deleted file mode 100644
index 4cd61b86c344e619f978110bea46a4f6ac84731b..0000000000000000000000000000000000000000
--- a/src/main/kotlin/de/thk/gm/gdw/todolist/services/TasksService.kt
+++ /dev/null
@@ -1,12 +0,0 @@
-package de.thk.gm.gdw.todolist.services
-
-import de.thk.gm.gdw.todolist.models.Task
-import java.util.*
-
-interface TasksService {
-    fun getAll(): List<Task>
-    fun getAll(open: Boolean): List<Task>
-    fun getById(id: UUID): Task?
-    fun save(task: Task): Task
-    fun delete(id: UUID)
-}
\ No newline at end of file
diff --git a/src/main/kotlin/de/thk/gm/gdw/todolist/services/TasksServiceImpl.kt b/src/main/kotlin/de/thk/gm/gdw/todolist/services/TasksServiceImpl.kt
deleted file mode 100644
index 6d976210dcc0b656f3a71ed8a0888efc02e9fc6e..0000000000000000000000000000000000000000
--- a/src/main/kotlin/de/thk/gm/gdw/todolist/services/TasksServiceImpl.kt
+++ /dev/null
@@ -1,35 +0,0 @@
-package de.thk.gm.gdw.todolist.services
-
-import de.thk.gm.gdw.todolist.models.Task
-import de.thk.gm.gdw.todolist.repositories.TasksRepository
-import org.springframework.context.annotation.Primary
-import org.springframework.stereotype.Service
-import java.util.*
-
-@Primary
-@Service
-class TasksServiceImpl (private val tasksRepository: TasksRepository) : TasksService {
-    override fun getAll(): List<Task> {
-        return tasksRepository.findAll().toList()
-    }
-
-    override fun getAll(open: Boolean): List<Task> {
-        return if(open){
-            tasksRepository.findByOpenTrue()
-        } else {
-            tasksRepository.findByOpenFalse()
-        }
-    }
-
-    override fun getById(id: UUID): Task? {
-        return tasksRepository.findById(id).orElse(null)
-    }
-
-    override fun save(task: Task): Task {
-        return tasksRepository.save(task)
-    }
-
-    override fun delete(id: UUID) {
-        tasksRepository.deleteById(id)
-    }
-}
\ No newline at end of file