Did the required changes

whatsapp-web.js/src/models/product.js

@@ -8,6 +8,43 @@ class Product {
         this.cost = cost;
         this.image = image;
     }
+
+    /**
+     * 
+     * @param {Number} id 
+     */
+    setId(id){
+        return this.id = id;
+    }
+    /**
+     * 
+     * @param {String} name 
+     */
+    setName(name){
+        return this.name = name;
+    }
+    /**
+     * 
+     * @param {String} description 
+     */
+    setDesc(description){
+        return this.desc = description;
+    }
+    /**
+     * 
+     * @param {Number} cost
+     */
+    setCost(cost){
+        return this.cost = cost;
+    }
+    /**
+     * 
+     * @param {String} image 
+     */
+    setImage(image){
+        return this.image = image;
+    }
+
 }
 
 module.exports.Product = Product;

whatsapp-web.js/src/models/website.js

@@ -37,6 +37,14 @@ class Website {
         return this.products.getData(productId);
     }
 
+    /**
+     * 
+     * @returns {[]} 
+     */
+    getAllProduct(){
+        return this.products.getAllData().values();
+    }
+
     /**
      * 
      * @param {string} productId