diff --git a/back-end/src/controllers/auth.controller.ts b/back-end/src/controllers/auth.controller.ts
index 0bb776b..ff825e5 100644
--- a/back-end/src/controllers/auth.controller.ts
+++ b/back-end/src/controllers/auth.controller.ts
@@ -3,7 +3,7 @@ import bcrypt from 'bcrypt';
 import { SignJWT } from 'jose';
 import { JWT_ISSUER, JWT_AUDIENCE, JWT_SECRET, JWT_EXPIRATION, JWT_SECRET_KEY } from '../config/auth.config';
 import { Member, User } from '../types/member';
-import { getMember, createMember, userAdapter } from './member.controller';
+import memberService from '../services/member.service';
 import { Either, eitherLeft, eitherRight } from '../utils/utils';
 
 const register = (req: Request, res: Response) => {
@@ -22,7 +22,7 @@ const register = (req: Request, res: Response) => {
                 res.status(500).send();
                 return;
             }
-            const member: Either<Member, string> = await createMember(name, hash);
+            const member: Either<Member, string> = await memberService.createMember(name, hash);
             if (member.hasRight) {
                 res.status(401).send(member.right);
                 return;
@@ -33,7 +33,7 @@ const register = (req: Request, res: Response) => {
                 .setIssuer(JWT_ISSUER)
                 .setExpirationTime(JWT_EXPIRATION)
                 .sign(JWT_SECRET_KEY);
-            res.status(200).send({ member: userAdapter(member.left), token: token});
+            res.status(200).send({ member: memberService.userAdapter(member.left), token: token});
         });
     });
 };
@@ -44,7 +44,7 @@ const login = async (req: Request, res: Response) => {
         return;
     }
     const name: string = req.body.name;
-    const member: Either<Member, string> = await getMember(name);
+    const member: Either<Member, string> = await memberService.getMember(name);
     if (member.hasRight) {
         res.send(member.right).send();
         return;
@@ -64,7 +64,7 @@ const login = async (req: Request, res: Response) => {
             .setIssuer(JWT_ISSUER)
             .setExpirationTime(JWT_EXPIRATION)
             .sign(JWT_SECRET_KEY);
-        res.status(200).send({ member: userAdapter(member.left), token: token});
+        res.status(200).send({ member: memberService.userAdapter(member.left), token: token});
     });
 };
 
diff --git a/back-end/src/middlewares/auth.middleware.ts b/back-end/src/middlewares/auth.middleware.ts
index 2639a78..dd06d92 100644
--- a/back-end/src/middlewares/auth.middleware.ts
+++ b/back-end/src/middlewares/auth.middleware.ts
@@ -1,7 +1,7 @@
 import { Request, Response } from 'express';
 import { jwtVerify } from 'jose';
 import { JWT_SECRET_KEY } from '../config/auth.config';
-import { getMember } from '../controllers/member.controller';
+import memberService from '../services/member.service';
 import { Member } from '../types/member';
 import { Either } from '../utils/utils';
 
@@ -20,7 +20,7 @@ const getUsername = async (req: Request, res: Response, next: () => void) => {
     try {
         const { payload } = await jwtVerify(token, JWT_SECRET_KEY);
         const name: string = payload.name as string;
-        const member: Either<Member, string> = await getMember(name);
+        const member: Either<Member, string> = await memberService.getMember(name);
 
         if (!member.hasRight) {
             res.locals.user = {