[Feature]: 그룹 생성 이벤트를 외부 시스템에 발행한다.

src/main/java/com/gloddy/server/apply/api/in/ApplyPayloadApi.java

@@ -20,7 +20,7 @@ public class ApplyPayloadApi {
     @GetMapping("/applies/{applyId}")
     public ResponseEntity<ApplyPayload> getApplyPayload(
             @PathVariable("applyId") Long applyId,
-            @RequestParam("eventType") ApplyEventType eventType
+            @RequestParam(value = "eventType", required = false) ApplyEventType eventType
     ) {
         ApplyPayload response = applyPayloadService.getPayload(applyId, eventType);
         return ResponseEntity.ok(response);

src/main/java/com/gloddy/server/group/api/in/GroupPayloadApi.java

@@ -23,7 +23,7 @@ public class GroupPayloadApi {
     @GetMapping("/groups/{groupId}")
     public ResponseEntity<GroupPayload> getGroupPayload(
             @PathVariable("groupId") Long groupId,
-            @RequestParam("eventType") GroupPayloadEventType eventType
+            @RequestParam(value = "eventType", required = false) GroupPayloadEventType eventType
     ) {
         GroupPayload response = groupPayloadService.getGroupPayload(groupId, eventType);
         return ApiResponse.ok(response);

src/main/java/com/gloddy/server/group/event/GroupCreateEvent.java

@@ -11,4 +11,5 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 public class GroupCreateEvent implements Event {
     private Long userId;
+    private Long groupId;
 }

src/main/java/com/gloddy/server/messaging/sns/Topic.java

@@ -8,6 +8,8 @@ public enum Topic {
     APPLY_APPROVE("지원서가 승인 처리 되었을 때", "apply-topic"),
     APPLY_REFUSE("지원서가 거절 처리 되었을 때", "apply-topic"),
 
+    CREATE_GROUP("그룹이 생성 되었을 때", "group-topic"),
+
     CREATE_GENERAL_ARTICLE("그룹 일반 게시글이 생성될 떄", "group-article-topic"),
     CREATE_NOTICE_ARTICLE("그룹 공지글이 생성될 때", "group-article-topic"),
 

src/main/java/com/gloddy/server/outbox/adapter/group/event/GroupEventType.java

@@ -6,6 +6,8 @@
 @AllArgsConstructor
 @Getter
 public enum GroupEventType {
+
+    CREATE_GROUP("모임이 생성될 때"),
     APPROACHING_GROUP("모임 시작이 임박할 때"),
     END_GROUP("모임이 완료됏을 때");
 

src/main/java/com/gloddy/server/outbox/adapter/group/handler/GroupAdapterEventHandler.java

@@ -3,6 +3,7 @@
 import com.gloddy.server.article.event.GroupArticleCreateEvent;
 import com.gloddy.server.batch.group.event.GroupApproachingEvent;
 import com.gloddy.server.batch.group.event.GroupEndEvent;
+import com.gloddy.server.group.event.GroupCreateEvent;
 import com.gloddy.server.group_member.event.GroupMemberLeaveEvent;
 import com.gloddy.server.outbox.adapter.group.event.GroupAdapterEvent;
 import com.gloddy.server.outbox.adapter.group.event.GroupArticleAdapterEvent;
@@ -21,6 +22,12 @@ public class GroupAdapterEventHandler {
 
     private final OutboxEventSaveService outboxEventSaveService;
 
+    @TransactionalEventListener(phase = TransactionPhase.BEFORE_COMMIT)
+    public void handle(GroupCreateEvent event) {
+        GroupAdapterEvent adapterEvent = GroupEventMapper.mapToGroupAdapterEvent(event);
+        outboxEventSaveService.save(adapterEvent);
+    }
+
     @TransactionalEventListener(phase = TransactionPhase.BEFORE_COMMIT)
     public void handle(GroupArticleCreateEvent event) {
         GroupArticleAdapterEvent adapterEvent = GroupEventMapper.mapToGroupArticleAdapterEvent(event);

src/main/java/com/gloddy/server/outbox/adapter/group/mapper/GroupEventMapper.java

@@ -3,6 +3,7 @@
 import com.gloddy.server.article.event.GroupArticleCreateEvent;
 import com.gloddy.server.batch.group.event.GroupApproachingEvent;
 import com.gloddy.server.batch.group.event.GroupEndEvent;
+import com.gloddy.server.group.event.GroupCreateEvent;
 import com.gloddy.server.group_member.event.GroupMemberLeaveEvent;
 import com.gloddy.server.outbox.adapter.group.event.GroupAdapterEvent;
 import com.gloddy.server.outbox.adapter.group.event.GroupArticleAdapterEvent;
@@ -46,4 +47,12 @@ public static GroupAdapterEvent mapToGroupAdapterEvent(GroupEndEvent event) {
                 LocalDateTime.now()
         );
     }
+
+    public static GroupAdapterEvent mapToGroupAdapterEvent(GroupCreateEvent event) {
+        return new GroupAdapterEvent(
+                event.getGroupId(),
+                GroupEventType.CREATE_GROUP,
+                LocalDateTime.now()
+        );
+    }
 }

src/main/java/com/gloddy/server/user/domain/User.java

@@ -87,7 +87,7 @@ public Group saveGroup(GroupFactory groupFactory, GroupEventProducer groupEventP
                            GroupCommandHandler groupCommandHandler, GroupRequest.Create groupInfo) {
         Group group = groupCommandHandler.save(groupFactory.getGroupFrom(this, groupInfo));
 
-        groupEventProducer.produceEvent(new GroupCreateEvent(this.getId()));
+        groupEventProducer.produceEvent(new GroupCreateEvent(this.getId() ,group.getId()));
         groupEventProducer.produceEvent(new GroupParticipateEvent(this.getId(), group.getId()));
         return group;
     }

src/main/resources/application.yml

@@ -56,6 +56,7 @@ spring:
       group-article-topic: ${GROUP_ARTICLE_TOPIC}
       group-status-topic: ${GROUP_STATUS_TOPIC}
       user-topic: ${USER_TOPIC}
+      group-topic: ${GROUP_TOPIC}
 
 logging:
   level: