modified exception handling

src/auth/auth.service.ts

@@ -50,18 +50,18 @@ export class AuthService {
 
         await cursor.close();
       } else {
-        return new BadRequestException({
+        throw new BadRequestException({
           Error: 'Error executing request try after some time!',
         });
       }
 
       if (rows[0]['ERRORMESG']) {
-        return { error: 'Invalid username or password!' };
+        throw new BadRequestException({ error: 'Invalid username or password!' });
       }
       return { msg: 'Logged in successfully' };
     } catch (err) {
       console.error('Error fetching users: ', err.message);
-      return { error: 'Invalid username or password' };
+      throw new BadRequestException({ error: 'Invalid username or password' });
     }
     finally {
       if (connection) {

src/main.ts

@@ -56,7 +56,7 @@ async function bootstrap() {
       })
       .filter(Boolean);
 
-    return new BadRequestException({
+    throw new BadRequestException({
       message: 'Validation failed',
       errors: newResult,
     });