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 32f4511..fda1909 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
@@ -84,4 +84,10 @@ interface TecnologiaApi {
     @GET("api/dm/rooms")
     suspend fun getChatRooms(): Response<RoomListResponse>
 
+    // Get dm message
+    @GET("api/dm/{room_id}/messages")
+    suspend fun getChatMessages(
+        @Path("room_id") roomId: String
+    ): Response<MessageResponse>
+
 }
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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 9c560d0..2391890 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
@@ -71,4 +71,47 @@ val Partner.fullContactAvatarUrl: Any
         avatarUrl // 已經是完整網址就直接用
     } else {
         "http://192.168.0.217$avatarUrl" // 否則補上 Base URL
-    }
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+    }
+
+
+
+//Message DM
+@JsonClass(generateAdapter = true)
+data class MessageResponse(
+    @Json(name = "has_more") val hasMore: Boolean,
+    @Json(name = "limit") val limit: Int,
+    @Json(name = "messages") val messages: List<Message>,
+    @Json(name = "next_cursor") val nextCursor: String? = null
+)
+
+@JsonClass(generateAdapter = true)
+data class Message(
+    @Json(name = "id") val id: String,
+    @Json(name = "chat_room_id") val chatRoomId: String,
+    @Json(name = "sender_id") val senderId: String,
+    @Json(name = "content") val content: String,
+    @Json(name = "type") val type: String,
+    @Json(name = "created_at") val createdAt: String,
+    @Json(name = "edited_at") val editedAt: String? = null,
+    @Json(name = "deleted_at") val deletedAt: String? = null,
+    @Json(name = "is_edited") val isEdited: Boolean,
+    @Json(name = "is_deleted") val isDeleted: Boolean,
+    @Json(name = "reply_to_id") val replyToId: String? = null,
+    @Json(name = "forwarded_from_id") val forwardedFromId: String? = null,
+    @Json(name = "forwarded_from_room_id") val forwardedFromRoomId: String? = null,
+    @Json(name = "attachment") val attachment: Attachment? = null,
+    @Json(name = "reactions") val reactions: List<Reaction> = emptyList() // 若 API 沒給此欄位，給予空列表
+){
+    @JsonClass(generateAdapter = true)
+    data class Attachment(
+        @Json(name = "filename") val filename: String,
+        @Json(name = "mime_type") val mimeType: String,
+        @Json(name = "size") val size: Long
+    )
+    @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
+    )
+}
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