diff --git a/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic.kt b/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic.kt
new file mode 100644
index 0000000..487e352
--- /dev/null
+++ b/app/src/main/java/com/example/login_v3/data/repository/dm/DM_Basic.kt
@@ -0,0 +1,24 @@
+package com.example.login_v3.data.repository.dm
+
+import com.example.login_v3.data.api.TecnologiaApi
+import com.example.login_v3.data.api.api_class.RoomListResponse
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton // 如果你希望整個 App 週期內只存在一個實體
+class ChatRoomsRepository @Inject constructor(
+    private val api: TecnologiaApi
+) {
+    suspend fun fetchRooms(): Result<RoomListResponse> {
+        return try {
+            val response = api.getChatRooms()
+            if (response.isSuccessful && response.body() != null) {
+                Result.success(response.body()!!)
+            } else {
+                Result.failure(Exception("Error code: ${response.code()}"))
+            }
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+}
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