added refresh token generator

src/note_endpoint_json.txt

@@ -0,0 +1,51 @@
+#[derive(Deserialize, Debug)]
+pub struct GetMessagesValues {
+    pub conv_id: u32,
+    pub timestamp: Option<String>,
+}
+
+
+pub async fn get_message(
+    State(state): State<AppState>,
+    AuthClaims { user_id, hotel_id, username }: AuthClaims,
+    Json(payload): Json<GetMessagesValues>, // ✅ no custom payload wrapper
+) -> Result<impl IntoResponse, (StatusCode, String)>  {
+
+      let pool = state.hotel_pools.get_pool(hotel_id);
+
+    let conn = pool.get()
+        .map_err(|_| (StatusCode::INTERNAL_SERVER_ERROR, "Pool error".to_string()))?;
+
+    let from_time = match payload.timestamp.as_deref() {
+        Some("0") | None => "1970-01-01 00:00:00",
+        Some(ts) => ts,
+    };
+
+    let mut stmt = conn.prepare(
+        "SELECT id, sender_id, content, sent_at
+         FROM message
+         WHERE conversation_id = ?1
+           AND sent_at > ?2
+         ORDER BY sent_at DESC
+         LIMIT 50"
+    ).map_err(|_| (StatusCode::INTERNAL_SERVER_ERROR, "Prepare failed".to_string()))?;
+
+    let messages = stmt.query_map(
+        params![payload.conv_id, from_time],
+        |row| {
+            Ok(Message {
+                id: row.get(0)?,
+                sender_id: row.get(1)?,
+                content: row.get(2)?,
+                sent_at: row.get(3)?,
+            })
+        }
+    )
+    .map_err(|_| (StatusCode::INTERNAL_SERVER_ERROR, "Query failed".to_string()))?
+    .collect::<Result<Vec<_>, _>>()
+    .map_err(|_| (StatusCode::INTERNAL_SERVER_ERROR, "Collect failed".to_string()))?;
+  
+
+}
+
+