diff --git a/src/stream/model.rs b/src/stream/model.rs
index 7199725..7b61e6e 100644
--- a/src/stream/model.rs
+++ b/src/stream/model.rs
@@ -20,6 +20,8 @@ pub struct StreamDataStart {
     #[serde(rename = "ref")]
     #[serde(skip_serializing_if = "Option::is_none")]
     pub stream_ref: Option<String>,
+    /// extra data, information
+    pub metadata: String,
 }
 
 impl IntoStreamMessage for StreamDataStart {
@@ -35,7 +37,7 @@ impl IntoStreamMessage for StreamDataStart {
 
         serde_json::json!({
           "type": StreamDataStart::MSG_NAME,
-          "payload": self.clone()
+          "payload": payload.clone()
         })
     }
 
@@ -45,12 +47,18 @@ impl IntoStreamMessage for StreamDataStart {
 }
 
 impl StreamDataStart {
-    pub fn new(total_size: usize, chunk_size: usize, stream_ref: Option<String>) -> Self {
+    pub fn new(
+        total_size: usize,
+        chunk_size: usize,
+        stream_ref: Option<String>,
+        metadata: String,
+    ) -> Self {
         Self {
             stream_id: Uuid::new_v4().to_string(),
             total_size,
             chunk_size,
             stream_ref,
+            metadata,
         }
     }
 
@@ -113,6 +121,8 @@ where
 pub struct StreamDataEnd {
     /// Uuid v4, client must mapping later values with this stream id
     pub stream_id: String,
+    /// endpoint user
+    pub to: String,
 }
 
 impl IntoStreamMessage for StreamDataEnd {
@@ -131,9 +141,10 @@ impl IntoStreamMessage for StreamDataEnd {
 }
 
 impl StreamDataEnd {
-    pub fn new(sid: &str) -> Self {
+    pub fn new(sid: &str, to: String) -> Self {
         Self {
             stream_id: sid.to_string(),
+            to,
         }
     }
 
diff --git a/src/websocket/rw.rs b/src/websocket/rw.rs
index 565d7a4..d8897f0 100644
--- a/src/websocket/rw.rs
+++ b/src/websocket/rw.rs
@@ -51,7 +51,7 @@ pub async fn read(
             Message::Text(t) => {
                 let req: WebsocketMessageRequest = serde_json::from_str(t.as_str())?;
 
-                info!("get msg: {}", req.type_w);
+                // info!("get msg: {}", req.type_w);
                 match req.type_w.as_str() {
                     "recipe" if req.payload.is_some() => {
                         tasks::recipe::handle_recipe_request(
@@ -63,6 +63,16 @@ pub async fn read(
                         )
                         .await?;
                     }
+                    "recipe_versions" if req.payload.is_some() => {
+                        tasks::recipe::handle_recipe_versions_list_request(
+                            config.clone(),
+                            redis.clone(),
+                            tx.clone(),
+                            req,
+                            uid_clone.clone(),
+                        )
+                        .await?;
+                    }
                     "command" if req.payload.is_some() => {
                         tasks::command::handle_command_request(state.clone(), tx.clone(), req)
                             .await?;
@@ -201,6 +211,8 @@ pub async fn write(
                     }
 
                     let _ = sender.send(res.to_string().into()).await;
+                } else {
+                    warn!("failed to send message, as the receiver not detected: {res:?}");
                 }
             }
             TxControlMessage::CloseExist => {
diff --git a/src/websocket/tasks/recipe.rs b/src/websocket/tasks/recipe.rs
index 90f56e6..d07cf34 100644
--- a/src/websocket/tasks/recipe.rs
+++ b/src/websocket/tasks/recipe.rs
@@ -4,6 +4,7 @@ use crate::stream::model::{
 };
 use crate::websocket::{core::*, helper::*, model::*};
 
+use std::collections::HashMap;
 use std::{fs::File, io::Read, path::PathBuf, sync::Arc};
 
 use async_compression::tokio::bufread::BrotliDecoder;
@@ -63,6 +64,24 @@ pub fn get_key_cache(country: String, version: String, is_patch: bool, retry_cnt
     }
 }
 
+pub fn get_extra_parameters(s: String) -> HashMap<String, String> {
+    let mut result = HashMap::new();
+
+    let plist: Vec<String> = s.split(",").map(|x| x.to_string()).collect();
+
+    for pl in plist {
+        let sm: Vec<String> = pl.split("=").map(|x| x.to_string()).collect();
+
+        if sm.len() != 2 {
+            continue;
+        }
+
+        result.insert(sm[0].to_string(), sm[1].to_string());
+    }
+
+    result
+}
+
 pub async fn throttle_send_recipe(
     recipe: &Recipe,
     tx: &Sender<TxControlMessage>,
@@ -92,6 +111,7 @@ pub async fn throttle_send_recipe(
         r01s.len(),
         CHUNK_SIZE,
         Some(uid.try_lock().unwrap().to_string()),
+        format!("version={version},country={country}").to_string(),
     );
 
     let sid = ss.get_id();
@@ -163,7 +183,7 @@ pub async fn throttle_send_recipe(
     info!("sending {sid}");
 
     // return sid;
-    let end_msg = StreamDataEnd::new(&sid);
+    let end_msg = StreamDataEnd::new(&sid, uidd.clone());
 
     if let Some(err) = tx
         .send(TxControlMessage::Payload(end_msg.as_msg()))
@@ -222,6 +242,23 @@ pub async fn handle_recipe_request(
         };
     }
 
+    // detect if use different version
+    // parameter: use_legacy_version=true,version=888
+    if let Some(extra_param) = recipe_param.clone().parameters {
+        let pmap = get_extra_parameters(extra_param);
+
+        latest_version = if pmap.contains_key("use_legacy_version")
+            && let Some(legacy_cfg) = pmap.get("use_legacy_version")
+            && legacy_cfg.eq("true")
+        {
+            pmap.get("version").unwrap_or(&latest_version).to_string()
+        } else {
+            latest_version
+        };
+
+        info!("after param in recipe: {latest_version}");
+    }
+
     let req_file = if is_req_patch(&recipe_param) {
         format!(
             "stx_{country}_{version}.json",
@@ -353,3 +390,48 @@ pub async fn handle_recipe_request(
 
     Ok(())
 }
+
+pub async fn handle_recipe_versions_list_request(
+    config: DevConfig,
+    redis: redis::Client,
+    tx: Sender<TxControlMessage>,
+    req: WebsocketMessageRequest,
+    uid_clone: Arc<Mutex<String>>,
+) -> WebsocketMessageResult {
+    println!("trigger check versions ... ");
+    let p = req.payload.unwrap();
+    let recipe_param: RecipeRequestPayload = serde_json::from_value(p)?;
+
+    let version_list = format!("{country}", country = recipe_param.country);
+
+    let country_versions_str = match invoke_checkout_request(config.clone(), version_list).await {
+        Ok(vs) => vs,
+        Err(e) => return Err(format!("Cannot find versions of expected country: {e:?}").into()),
+    };
+
+    // extract version as list
+    let files: Vec<String> = country_versions_str
+        .split(",")
+        .map(|x| x.to_string())
+        .collect();
+
+    let result: Vec<String> = files
+        .iter()
+        .filter(|x| x.starts_with("coffeethai02") && x.ends_with(".json"))
+        .map(|x| x.replace("coffeethai02_", "").replace(".json", ""))
+        .collect();
+
+    let uidd = uid_clone.clone().try_lock().unwrap().to_string();
+
+    let _ = tx
+        .send(TxControlMessage::Payload(serde_json::json!({
+          "type": "version_selectors",
+          "payload": {
+            "versions": result,
+            "to": uidd
+          }
+        })))
+        .await;
+
+    Ok(())
+}
diff --git a/src/websocket/tasks/watchdog.rs b/src/websocket/tasks/watchdog.rs
index 4c2ddc3..1092f9d 100644
--- a/src/websocket/tasks/watchdog.rs
+++ b/src/websocket/tasks/watchdog.rs
@@ -21,7 +21,7 @@ pub async fn get_watchdog_task(
                 let h = hub.try_lock().unwrap();
                 let curr_user = user.try_lock().unwrap().to_string();
 
-                info!("{}: checking invalid ...", curr_user);
+                // info!("{}: checking invalid ...", curr_user);
 
                 if h.clients.contains_key(&curr_user) && curr_user.starts_with("temp") {
                     warn!("detect unauthorized -- {}", curr_user);