vega update

controller/handleOrchestration.js

@@ -139,7 +139,7 @@ const fetchWrenData = async (prompt) => {
       type: "error",
       data: [],
       chart: null,
-      error: err.message,
+      message: err.message,
     };
   }
 };
@@ -157,7 +157,7 @@ Generate Vega-Lite JSON.
 `;
 
     const completion = await client.chat.completions.create({
-      model: "",
+      model:deploymentName,
       temperature: 0,
       messages: [
         {
@@ -192,7 +192,7 @@ const ask = async (req, res) => {
     if (!prompt?.trim()) {
       return res.status(400).json({
         success: false,
-        error: "Prompt required"
+        message: "Prompt required"
       });
     }
 
@@ -217,7 +217,7 @@ const ask = async (req, res) => {
 
     return res.status(500).json({
       success: false,
-      error: err.message
+      message: err.message
     });
   }
 };