diff --git a/src/auth/auth.service.ts b/src/auth/auth.service.ts
index b4ce7dd..4c850a6 100644
--- a/src/auth/auth.service.ts
+++ b/src/auth/auth.service.ts
@@ -20,9 +20,9 @@ export class AuthService {
   ) {}
 
   async register(data: registerDto){
-    const{username, password,} = data;
+    const{username,password,} = data;
 
-    if(await this.usersService.findOne(data.username)){
+    if(await this.usersService.findOne(username)){
       throw new HttpException("User already exist",403);
     }
 
@@ -36,11 +36,13 @@ export class AuthService {
 
 
   async signIn(data: registerDto) {
-    const{password} = data;
-    const user = await this.usersService.findOne(data.username);
+    const{username,password} = data;
+    const user = await this.usersService.findOne(username);
+    if (!user) {
+      throw new UnauthorizedException('Invalid credentials');
+    }
 
     const checkPassword = await compare(password, (await user).password)
-
     if (!checkPassword) {
       throw new UnauthorizedException();
     }
diff --git a/src/main.ts b/src/main.ts
index 13cad38..260ded0 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -3,6 +3,7 @@ import { AppModule } from './app.module';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
+  app.enableCors();//activa cors
   await app.listen(3000);
 }
 bootstrap();
diff --git a/src/users/dto/userDto.dto.ts b/src/users/dto/userDto.dto.ts
index ef254ec..1dfd8f3 100644
--- a/src/users/dto/userDto.dto.ts
+++ b/src/users/dto/userDto.dto.ts
@@ -2,8 +2,10 @@ import { IsEmail, IsNotEmpty, IsString, MinLength } from "class-validator";
 
 export class UserDto{
     @IsString()
+    @IsNotEmpty()
     name: string;
 
+    @IsString()
     @IsNotEmpty()
     password: string;