diff --git a/src/access.controller.ts b/src/access.controller.ts
index cec00d4..1d6ee2f 100644
--- a/src/access.controller.ts
+++ b/src/access.controller.ts
@@ -8,17 +8,23 @@ export class AccessController {
   constructor(private readonly userService: UserService) {}
 
   @Post('/login')
-  public login(name: string, password: string): void {
+  public login(name: string, password: string): {userId: number} {
     this.logger.debug("Received login request");
     const user = this.userService.getUserByName(name);
     if (user.password !== password) {
       throw new UnauthorizedException();
     }
+    return {
+      userId: user.id
+    };
   }
 
   @Post('/register')
-  public new(name: string, password: string): void {
+  public new(name: string, password: string): {userId: number} {
     this.logger.debug("Received register request");
-    this.userService.createUser(name, password);
+    const user = this.userService.createUser(name, password);
+    return {
+      userId: user.id
+    };
   }
 }
diff --git a/src/user.service.ts b/src/user.service.ts
index 0b4cf86..1920663 100644
--- a/src/user.service.ts
+++ b/src/user.service.ts
@@ -23,17 +23,20 @@ export class UserService {
     return user;
   }
 
-  public createUser(name: string, password: string): void {
+  public createUser(name: string, password: string): User {
     try {
       this.getUserByName(name);
       throw new NotFoundException();
     } catch (e) {
       if (!(e instanceof NotFoundException)) throw e;
     }
-    this.users.push({
+  
+    const user: User = {
       id: this.users.length,
       name,
       password,
-    });
+    };
+    this.users.push(user);
+    return user;
   }
 }