src/main/java/com/onixbyte/deltaforceguide/manager/ModificationManager.java

@@ -71,6 +71,21 @@ public class ModificationManager {
                 .toList();
     }
 
+    public Long resolveFirearmId(Long firearmId, String firearmName) {
+        if (firearmId != null) {
+            return firearmId;
+        }
+        if (firearmName == null || firearmName.isBlank()) {
+            return null;
+        }
+        var matches = firearmRepository.findByName(firearmName);
+        if (matches.isEmpty()) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND,
+                    "Firearm not found by name: " + firearmName);
+        }
+        return matches.getFirst().getId();
+    }
+
     private Modification toEntity(ModificationRequest request, Firearm firearm) {
         return Modification.builder()
                 .firearm(firearm)

src/main/java/com/onixbyte/deltaforceguide/repository/FirearmRepository.java

@@ -7,9 +7,13 @@ import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 @Repository
 public interface FirearmRepository extends JpaRepository<Firearm, Long> {
 
 	Page<Firearm> findAllByType(FirearmType type, Pageable pageable);
+
+	List<Firearm> findByName(String name);
 }
 

src/main/java/com/onixbyte/deltaforceguide/service/WebhookService.java

@@ -109,7 +109,9 @@ public class WebhookService {
     }
 
     private ModificationRequest mapToRequest(Map<String, Object> data) {
-        Long firearmId = toLong(data.get("firearmId"));
+        Long firearmId = modificationManager.resolveFirearmId(
+                toLong(data.get("firearmId")),
+                (String) data.get("firearmName"));
         String name = (String) data.get("name");
         String code = (String) data.get("code");
         List<String> tags = toStringList(data.get("tags"));