src/main/java/com/nq/Repository/ExchangeRateRepository.java
@@ -5,7 +5,7 @@ import java.util.Optional; public interface ExchangeRateRepository extends JpaRepository<ExchangeRate, Long> { public interface ExchangeRateRepository extends JpaRepository<ExchangeRate, Integer> { Optional<ExchangeRate> findExchangeRateByCurrencyAndConversionCurrency(String currency, String conversionCurrency);