diff --git a/buisnesslogic/src/main/java/com/plannaplan/entities/Course.java b/buisnesslogic/src/main/java/com/plannaplan/entities/Course.java
index b17983d..1987d16 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/entities/Course.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/entities/Course.java
@@ -22,6 +22,10 @@ public class Course {
     public Course() {
     }
 
+    public Long getId() {
+        return this.id;
+    }
+
     public String getName() {
         return name;
     }
diff --git a/buisnesslogic/src/main/java/com/plannaplan/entities/Lecturer.java b/buisnesslogic/src/main/java/com/plannaplan/entities/Lecturer.java
index c8ca7e9..a227302 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/entities/Lecturer.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/entities/Lecturer.java
@@ -44,4 +44,7 @@ public class Lecturer {
         this.surname = surname;
     }
 
+    public Lecturer() {
+    }
+
 }
\ No newline at end of file
diff --git a/buisnesslogic/src/main/java/com/plannaplan/repositories/GroupRepository.java b/buisnesslogic/src/main/java/com/plannaplan/repositories/GroupRepository.java
index c222bfc..08e607d 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/repositories/GroupRepository.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/repositories/GroupRepository.java
@@ -1,5 +1,7 @@
 package com.plannaplan.repositories;
 
+import java.util.List;
+
 import com.plannaplan.entities.Groups;
 
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -11,4 +13,8 @@ import org.springframework.stereotype.Repository;
 public interface GroupRepository extends JpaRepository<Groups, Long> {
     @Query(value = "SELECT * FROM groups WHERE time = :time AND room = :room AND capacity = :capacity ", nativeQuery = true)
     Groups find(@Param("time") int time, @Param("room") String room, @Param("capacity") int capacity);
+
+    @Query(value = "SELECT * FROM groups WHERE course_id = :id", nativeQuery = true)
+    List<Groups> getByCourse(@Param("id") Long id);
+
 }
\ No newline at end of file
diff --git a/buisnesslogic/src/main/java/com/plannaplan/services/CourseService.java b/buisnesslogic/src/main/java/com/plannaplan/services/CourseService.java
index 9be0ba8..e5933cc 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/services/CourseService.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/services/CourseService.java
@@ -1,5 +1,7 @@
 package com.plannaplan.services;
 
+import java.util.List;
+
 import com.plannaplan.entities.Course;
 import com.plannaplan.repositories.CourseRepository;
 
@@ -15,6 +17,10 @@ public class CourseService {
         return this.repo.findByName(name);
     }
 
+    public List<Course> getAllCourses() {
+        return this.repo.findAll();
+    }
+
     public void save(Course course) {
         this.repo.save(course);
     }
diff --git a/buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java b/buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java
index 9136994..dee884b 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java
@@ -1,5 +1,7 @@
 package com.plannaplan.services;
 
+import java.util.List;
+
 import com.plannaplan.entities.Groups;
 import com.plannaplan.repositories.GroupRepository;
 
@@ -18,6 +20,10 @@ public class GroupService {
         return this.repo.find(time, room, capacity);
     }
 
+    public List<Groups> getGroupsByCourse(Long id) {
+        return this.repo.getByCourse(id);
+    }
+
     public void save(Groups group) {
         this.repo.save(group);
     }
diff --git a/restservice/src/main/java/com/plannaplan/controllers/CoursesController.java b/restservice/src/main/java/com/plannaplan/controllers/CoursesController.java
new file mode 100644
index 0000000..9c600be
--- /dev/null
+++ b/restservice/src/main/java/com/plannaplan/controllers/CoursesController.java
@@ -0,0 +1,26 @@
+package com.plannaplan.controllers;
+
+import java.util.List;
+
+import com.plannaplan.entities.Course;
+import com.plannaplan.services.CourseService;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@RestController
+@CrossOrigin
+public class CoursesController {
+    @Autowired
+    private CourseService courseService;
+
+    @GetMapping("/getCourses")
+    public ResponseEntity<List<Course>> getMethodName() {
+        return new ResponseEntity<>(this.courseService.getAllCourses(), HttpStatus.OK);
+    }
+
+}
\ No newline at end of file
diff --git a/restservice/src/main/java/com/plannaplan/controllers/GroupController.java b/restservice/src/main/java/com/plannaplan/controllers/GroupController.java
new file mode 100644
index 0000000..09790bc
--- /dev/null
+++ b/restservice/src/main/java/com/plannaplan/controllers/GroupController.java
@@ -0,0 +1,26 @@
+package com.plannaplan.controllers;
+
+import java.util.List;
+
+import com.plannaplan.entities.Groups;
+import com.plannaplan.services.GroupService;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@CrossOrigin
+public class GroupController {
+    @Autowired
+    private GroupService groupService;
+
+    @GetMapping("/getCourseGroups")
+    public ResponseEntity<List<Groups>> getCourses(@RequestParam("id") Long id) {
+        return new ResponseEntity<>(this.groupService.getGroupsByCourse(id), HttpStatus.OK);
+    }
+}
\ No newline at end of file