feat: implement photo apis (#3)

photo-service/src/main/java/kr/mafoo/photo/controller/PhotoController.java

@@ -0,0 +1,50 @@
+package kr.mafoo.photo.controller;
+
+import kr.mafoo.photo.api.PhotoApi;
+import kr.mafoo.photo.controller.dto.request.PhotoCreateRequest;
+import kr.mafoo.photo.controller.dto.request.PhotoAlbumUpdateRequest;
+import kr.mafoo.photo.controller.dto.response.PhotoResponse;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+@RestController
+public class PhotoController implements PhotoApi {
+
+    @Override
+    public Flux<PhotoResponse> getAlbumPhotos(
+            String albumId
+    ){
+        return Flux.just(
+                new PhotoResponse("test_photo_id_a", "test_album_id_a", "photo_url"),
+                new PhotoResponse("test_photo_id_b", "test_album_id_a", "photo_url"),
+                new PhotoResponse("test_photo_id_c", "test_album_id_a", "photo_url")
+        );
+    }
+
+    @Override
+    public Mono<PhotoResponse> createPhoto(
+            PhotoCreateRequest request
+    ){
+        return Mono.just(
+                new PhotoResponse("test_photo_id", "photo_url", null)
+        );
+    }
+
+    @Override
+    public Mono<PhotoResponse> updatePhotoAlbum(
+            String photoId,
+            PhotoAlbumUpdateRequest request
+    ){
+        return Mono.just(
+                new PhotoResponse("test_photo_id", "photo_url", "test_album_id")
+        );
+    }
+
+    @Override
+    public Mono<Void> deletePhoto(
+            String photoId
+    ){
+        return Mono.empty();
+    }
+}