Dup[licate HS code bug fixed

app/controllers/products.controller.js

@@ -10,20 +10,42 @@ const UnitMaster = db.UnitMaster;
 
 exports.createProduct = async (req, res) => {
   try {
-    const hsCode = req.body.hs_code;
+    const { product_name, hs_code } = req.body;
 
-   if (!/^\d+$/.test(hsCode)) {
+   if (!/^\d+$/.test(hs_code)) {
       return res.status(400).json({error: "Invalid HS Code: Must be numeric only."});
     }
 
-     if (String(hsCode).length > 10 && String(hsCode).length < 1 && hsCode === 0 ) {
+     if (String(hs_code).length > 10 && String(hs_code).length < 1 && hs_code === 0 ) {
       return res.status(400).send({status: "failed", message: "Invalid HS Code: maximum length is 10 digits."});
     }
 
-    if(hsCode === 0 || String(hsCode) === "0"){
+    if(hs_code === 0 || String(hs_code) === "0"){
       return res.status(400).send({status: "failed", message: " must be numeric, 1–10 digits, and cannot be 0."});
     }  
 
+    const productNameExists = await Product.findOne({
+      where: { product_name, is_active: true }
+    });
+
+    if (productNameExists) {
+      return res.status(400).json({
+        status: "failed",
+        message: `Product name '${product_name}' already exists.`
+      });
+    }
+
+    const hsCodeExists = await Product.findOne({
+      where: { hs_code, is_active: true }
+    });
+
+    if (hsCodeExists) {
+      return res.status(400).json({
+        status: "failed",
+        message: `HS Code '${hs_code}' already exists.`
+      });
+    }
+
     req.body.created_by = req.user.id;
     const data = await Product.create(req.body);    
     res.status(201).send({'status':"success",'message':"created successfully",'data': data }); 

app/models/product.model.js

@@ -8,10 +8,12 @@ module.exports = (sequelize, DataTypes) => {
       product_name: {
         type: DataTypes.STRING,
         allowNull: false,
+        unique: true,
       },
       hs_code: {
         type: DataTypes.INTEGER,
         allowNull: true,
+        unique: true,
       },
       hs_description: {
         type: DataTypes.TEXT,