diff --git a/classes/Auth.js b/classes/Auth.js
index e69de29..ae9009b 100644
--- a/classes/Auth.js
+++ b/classes/Auth.js
@@ -0,0 +1,21 @@
+const Customer = require("./Customer");
+
+class Auth {
+    constructor() {
+        this.customers = [];
+    }
+    register(name, email, shippingAddress) {
+        const newCustomer = new Customer(name, email, shippingAddress);
+        this.customers.push(newCustomer);
+    }
+    login(email) {
+        for (const person of this.customers) {
+            if (person.email === email) {
+                return person;
+            }
+        }
+        return null;
+    }
+}
+
+module.exports = Auth;
diff --git a/classes/Cart.js b/classes/Cart.js
index e69de29..2ad45cf 100644
--- a/classes/Cart.js
+++ b/classes/Cart.js
@@ -0,0 +1,44 @@
+class Cart {
+    constructor() {
+        this.products = [];
+        this.total = 0;
+    }
+
+    addProduct(product, quantity) {
+        if (quantity > 0) {
+            this.products.push(product);
+            this.total += product.price * quantity;
+        }
+    }
+
+    removeProduct(i, quantity) {
+        const product = this.products[i];
+        if (quantity >= product.quantity) {
+            //this.products.splice(i, 1);
+            this.total -= product.price * quantity;
+            product.quantity -= quantity;
+            if (product.quantity === 0) {
+                product.inStock = false;
+            }
+            return product;
+        } else {
+            return `I'm sorry there are only ${product.quantity}  of this product left`;
+        }
+    }
+    getTotal() {
+        let sum = 0;
+        for (let i = 0; i < this.products.length; i++) {
+            sum += this.products[i].price;
+        }
+        return sum;
+    }
+    clear() {
+        this.products = [];
+        this.total = 0;
+    }
+    removeItemByName(product) {
+        return this.products.filter((item) => item.name !== product.name);
+    }
+}
+
+module.exports = Cart;
diff --git a/classes/Customer.js b/classes/Customer.js
index e69de29..d34447c 100644
--- a/classes/Customer.js
+++ b/classes/Customer.js
@@ -0,0 +1,19 @@
+class Customer {
+    constructor(name, email, shippingAddress) {
+        this.name = name;
+        this.email = email;
+        this.shippingAddress = shippingAddress;
+        this.orderHistory = [];
+        this.rewardsPoints = 0;
+    }
+    addToOrderHistory(cart) {
+        this.orderHistory.push(cart);
+    }
+    getRewardPoints() {
+        for (const order of this.orderHistory) {
+            this.rewardsPoints += order.rewardPoints;
+        }
+    }
+}
+
+module.exports = Customer;
diff --git a/classes/Product.js b/classes/Product.js
index e69de29..8640c18 100644
--- a/classes/Product.js
+++ b/classes/Product.js
@@ -0,0 +1,16 @@
+class Product {
+    constructor(name, price, description, rewardPoints, quantity) {
+        this.name = name;
+        this.price = price;
+        this.description = description;
+        this.inStock = true;
+        this.rewardPoints = rewardPoints;
+        this.quantity = quantity;
+    }
+    display() {
+        const dollar = "$";
+        return `Name: ${this.name}, Price: ${dollar}${this.price}, Description: ${this.description}`;
+    }
+}
+
+module.exports = Product;
diff --git a/index.js b/index.js
index efad601..5c076b6 100644
--- a/index.js
+++ b/index.js
@@ -1,49 +1,36 @@
 // Import Classes Here
-
-
-
-
-
-
-
-
-
+const Product = require("./classes/Product");
+const Cart = require("./classes/Cart");
+const Customer = require("./classes/Customer");
+const Auth = require("./classes/Auth");
 
 // DO NOT EDIT BELOW THIS LINE
 try {
     module.exports = {
         Product,
-    }
-} catch(e){
-
-}
+    };
+} catch (e) {}
 
 try {
     module.exports = {
         Product,
-        Cart
-    }
-} catch(e){
-
-}
+        Cart,
+    };
+} catch (e) {}
 
 try {
     module.exports = {
         Product,
         Cart,
-        Customer
-    }
-} catch(e){
-
-}
+        Customer,
+    };
+} catch (e) {}
 
 try {
     module.exports = {
         Product,
         Cart,
         Customer,
-        Auth
-    }
-} catch(e){
-
-}
\ No newline at end of file
+        Auth,
+    };
+} catch (e) {}
diff --git a/package-lock.json b/package-lock.json
index 9b68881..5713249 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4717,7 +4717,8 @@
     "jest-pnp-resolver": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/jest-pnp-resolver/-/jest-pnp-resolver-1.2.3.tgz",
-      "integrity": "sha512-+3NpwQEnRoIBtx4fyhblQDPgJI0H1IEIkX7ShLUjPGA7TtUTvI1oiKi3SR4oBR0hQhQR80l4WAe5RrXBwWMA8w=="
+      "integrity": "sha512-+3NpwQEnRoIBtx4fyhblQDPgJI0H1IEIkX7ShLUjPGA7TtUTvI1oiKi3SR4oBR0hQhQR80l4WAe5RrXBwWMA8w==",
+      "requires": {}
     },
     "jest-regex-util": {
       "version": "29.4.3",