diff --git a/front_end/src/components/login.tsx b/front_end/src/components/login.tsx
index e01f7f0..3633a6c 100644
--- a/front_end/src/components/login.tsx
+++ b/front_end/src/components/login.tsx
@@ -4,6 +4,7 @@ import { Athlete, User } from '../classes';
 import { useLocalData } from '../context/useLocalData';
 import { postAthlete } from '../requetes';
 import { clearAuthToken, setAuthToken } from '../api';
+import { AthleteDTO } from '../classesDTO';
 
 export const Login =() =>{
     const {user,setUser} = useLocalData()
@@ -11,12 +12,23 @@ export const Login =() =>{
 
     useEffect(() => {
         const syncAndLoadUser = async () => {
-            const newAthlete:Athlete = new Athlete()
-
-            const athlete:Athlete = await postAthlete(newAthlete)
-            
-            setAuthToken(keycloak.token);
-            setUser(athlete);
+            if (keycloak.authenticated && keycloak.token && keycloak.tokenParsed) {
+                try {
+                    const newAthlete: Athlete = new Athlete();
+                    newAthlete.keycloakId = keycloak.tokenParsed.sub || "";
+                    newAthlete.email = keycloak.tokenParsed.email || "";
+                    newAthlete.nom = keycloak.tokenParsed.family_name || "";
+                    newAthlete.prenom = keycloak.tokenParsed.given_name || "";
+                    
+                    const newAthleteDTO: AthleteDTO =newAthlete.toDTO();
+                    setAuthToken(keycloak.token);
+                    const athlete: Athlete = await postAthlete(newAthlete);
+                    setUser(athlete);
+                    } catch (error) {
+                        console.error("Error :", error);
+                    }
+                }
+            };
             /*postAthlete
             if (keycloak.authenticated && keycloak.token) {
                 const tokenParsed = keycloak.tokenParsed;
@@ -44,7 +56,7 @@ export const Login =() =>{
                     console.error("Sync fetch failed:", error);
                 }
             }*/
-        };
+        
 
         syncAndLoadUser();
     }, [keycloak.authenticated, keycloak.token, setUser]);
diff --git a/front_end/src/requetes.tsx b/front_end/src/requetes.tsx
index 68f4b52..3e969bf 100644
--- a/front_end/src/requetes.tsx
+++ b/front_end/src/requetes.tsx
@@ -128,7 +128,7 @@ export async function postActivityAPI(session: Session, activity: Activite){
 
 export async function postAthlete(athlete: Athlete):Promise<Athlete>{
    try {
-        const response = await api.post<Athlete>("/athlete/create/",athlete);
+        const response = await api.post<Athlete>("/athlete/create/",athlete.toDTO);
         console.log(response);
         return response.data;
     } catch (error) {