diff --git a/app/src/main/java/com/example/login_v3/data/api/Main_API_Service.kt b/app/src/main/java/com/example/login_v3/data/api/Main_API_Service.kt
index fda1909..9ce0edb 100644
--- a/app/src/main/java/com/example/login_v3/data/api/Main_API_Service.kt
+++ b/app/src/main/java/com/example/login_v3/data/api/Main_API_Service.kt
@@ -80,7 +80,7 @@ interface TecnologiaApi {
     ): Response<UserSearchResponse>
 
 
-    //Get dm list
+    // Get dm list
     @GET("api/dm/rooms")
     suspend fun getChatRooms(): Response<RoomListResponse>
 
@@ -90,4 +90,10 @@ interface TecnologiaApi {
         @Path("room_id") roomId: String
     ): Response<MessageResponse>
 
+    // 標記聊天室已讀
+    @POST("api/dm/{room_id}/read")
+    suspend fun markAsRead(
+        @Path("room_id") roomId: String
+    ): Response<Unit>
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/login_v3/data/api/api_class/DM_Basic.kt b/app/src/main/java/com/example/login_v3/data/api/api_class/DM_Basic.kt
index 2391890..bc357a7 100644
--- a/app/src/main/java/com/example/login_v3/data/api/api_class/DM_Basic.kt
+++ b/app/src/main/java/com/example/login_v3/data/api/api_class/DM_Basic.kt
@@ -59,9 +59,9 @@ data class Attachment(
 )
 @JsonClass(generateAdapter = true)
 data class Reaction(
-    @Json(name = "emoji") val emoji: String,
-    @Json(name = "count") val count: Int,
-    @Json(name = "me_reacted") val meReacted: Boolean
+    @Json(name = "emoji") val emoji: String = "",
+    @Json(name = "count") val count: Int = 0,
+    @Json(name = "me_reacted") val meReacted: Boolean = false
 )
 
 val Partner.fullContactAvatarUrl: Any