diff --git a/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java
new file mode 100644
index 0000000..b238e75
--- /dev/null
+++ b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java
@@ -0,0 +1,8 @@
+package hackathon.FrisbYEE.jpa.service;
+
+import hackathon.FrisbYEE.jpa.metier.Activite;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ActiviteDAO extends JpaRepository<Activite, Integer>  {
+    Activite findByKeycloakId(String keycloakId);
+}
diff --git a/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/AthleteDAO.java b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/AthleteDAO.java
new file mode 100644
index 0000000..9a352a3
--- /dev/null
+++ b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/AthleteDAO.java
@@ -0,0 +1,9 @@
+package hackathon.FrisbYEE.jpa.service;
+
+import hackathon.FrisbYEE.jpa.metier.Activite;
+import hackathon.FrisbYEE.jpa.metier.Athlete;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface AthleteDAO extends JpaRepository<Athlete, Integer> {
+}
+
diff --git a/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/CoachDAO.java b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/CoachDAO.java
new file mode 100644
index 0000000..fe16ff9
--- /dev/null
+++ b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/CoachDAO.java
@@ -0,0 +1,4 @@
+package hackathon.FrisbYEE.jpa.service;
+
+public class CoachDAO {
+}
diff --git a/back_end/src/main/java/hackathon/FrisbYEE/jpa/web/ActiviteController.java b/back_end/src/main/java/hackathon/FrisbYEE/jpa/web/ActiviteController.java
new file mode 100644
index 0000000..9557bef
--- /dev/null
+++ b/back_end/src/main/java/hackathon/FrisbYEE/jpa/web/ActiviteController.java
@@ -0,0 +1,11 @@
+package hackathon.FrisbYEE.jpa.web;
+
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+@RequestMapping("/activite")
+
+public class ActiviteController {
+}