diff --git a/README.md b/README.md
index 484b782..0fd45a7 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,18 @@ This repository contains the backend implementation for the Ecomm e-commerce app
 
 This is a simple e-commerce backend application built with Node.js, TypeScript, Express.js, MongoDB, and Docker. It provides API endpoints to manage users, products and cart of user.
 
+## My Approach
+
+Creating a simple Express.js application with TypeScript.
+added the required dependencies and dev dependencies.
+added best ORM to connect with MongoDB and Node.js.
+created the required models and controllers for the application.
+added the required routes for the application.
+added the required environment variables for the application.
+added the required middleware for the application.
+added the required error handling for the application.
+
+
 ## Table of Contents
 
 - [Technologies Used]
@@ -131,6 +143,7 @@ status code 404
 ````
 
 # Cart
+
 Add Product to Cart - POST /cart
 Adds a product to cart.
 (authentication required)
@@ -150,4 +163,59 @@ status code 200
   }
 }
 ```
+status code 500
+```
+{
+  message: 
+  "An error occurred while adding the product to the cart."
+}
+```
 
+List Cart Items - GET /cart
+Lists all cart items.
+(authentication required)
+
+Response Body
+status code 200
+```
+{
+  Cart :{
+    "{ProductId}": Quantity
+  }
+}
+```
+status 404
+```
+{
+  message: 
+  "Cart not found."
+}
+```
+status code 500
+```
+{
+  message: 
+  "An error occurred while listing the cart."
+}
+```
+
+checkout - POST /cart/checkout
+checkout the cart.
+(authentication required)
+
+status 200
+```
+{
+  order: {
+    {productId}: quantity
+  }
+}
+```
+
+status 404
+```
+{
+  message: 
+  "Cart not found."
+}
+```
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