src/main/java/com/forum/repository/RefreshTokenRepository.java
package com.forum.repository;
import com.forum.model.RefreshToken;
import org.springframework.data.jpa.repository.JpaRepository;
import java.util.Optional;
public interface RefreshTokenRepository extends JpaRepository<RefreshToken, Long> {
Optional<RefreshToken> findByToken(String token);
void deleteByToken(String token);
}