Initial Commit

src/main/java/icu/samnyan/aqua/sega/general/service/CardService.java

@@ -0,0 +1,26 @@
+package icu.samnyan.aqua.sega.general.service;
+
+import icu.samnyan.aqua.sega.general.dao.CardRepository;
+import icu.samnyan.aqua.sega.general.model.Card;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+/**
+ * @author samnyan (privateamusement@protonmail.com)
+ */
+@Service
+public class CardService {
+
+    private final CardRepository cardRepository;
+
+    @Autowired
+    public CardService(CardRepository cardRepository) {
+        this.cardRepository = cardRepository;
+    }
+
+    public Optional<Card> getCardByExtId(String extId) {
+        return cardRepository.findByExtId(Long.parseLong(extId));
+    }
+}