to implement a 3-tiered REST-based shopping cart application. Each tier is implemented on a different laptop and the laptops communicate using WIFI.

Your implementation should allow client devices to interact with the first tier only.

A customer should be able to :

1. Add products

Customers should be able to search or browse products on your website. All products should have an Add to Cart button. When a customer adds a product to their cart, they may not buy it right away, or at all. Sometimes customers use their cart for considering products -which leads us to step 2.

2. Review the cart

Customers should have the opportunity to review their cart before making their purchase. They might decide they don't want a particular item, or want a different quantity, size, or color. They should be able to make these adjustments seamlessly, without leaving the cart.

3. Complete the purchase

Your shopping cart software should calculate and display the total amount.

You can ignore shipping costs and limit payments to cash on delivery.

4. Continue the shopping process

Once a sale is complete, customers can keep browsing the products.

The application should allow the shop owner to update the products inventory including product descriptions and price information. The application should also implement concurrency control.

• Team members can be from different sections.
• You must divide the tasks among your team members fairly. Your submission should clearly show the name of the person who contributed to each part. This will guide the instructor at the time of the discussion.
• Do not write source code from scratch. You are expected to cite the references) that you used.

Ask ChatGPT to explain main modules in the code. Capture the explanations and include them in your submission. Make sure you understand what you submitted because you will be asked to re-explain it in the assignment discussion.

• Ask ChatGPT to explain to you the difference between REST, GraphQL, and gRPC and include the answer in your submission.
• Ask ChatGPT to re-factor your REST code as gRPC/GraphQL. Make sure you ask ChatGPT to explain how the code was re-factored. Make sure you understand how the code was re-factored. Include the re-factored code and its explanation in your submission.
• you will be graded based on the following rubric

Complete

Submission Discussion

Question

Answering

Marks out ofs

4

Description

The submission should include all the source code files and the requested documents in which you present the explanation and refactoring of the source code

An oral discussion will be scheduled with every group in which they present two successful demos [1) REST 2) GraphQL/gRPC] and accurately answer the questions of the instructor.

of 3) to implement a 3-tiered REST-based shopping cart application. Each tier is implemented on a different laptop and the laptops communicate using WIFI. Your implementation should allow client devices to interact with the first tier only. A customer should be able to : 1. Add products Customers should be able to search or browse products on your website. All products should have an Add to Cart button. When a customer adds a product to their cart, they may not buy it right away, or at all. Sometimes customers use their cart for considering products - which leads us to step 2. 2. Review the cart Customers should have the opportunity to review their cart before making their purchase. They might decide they don't want a particular item, or want a different quantity, size, or color. They should be able to make these adjustments seamlessly, without leaving the cart. 3. Complete the purchase Your shopping cart software should calculate and display the total amount. You can ignore shipping costs and limit payments to cash on delivery. 4. Continue the shopping process Once a sale is complete, customers can keep browsing the products. The application should allow the shop owner to update the products inventory including product descriptions and price information. The application should also implement concurrency control. * You must divide the tasks among your team members fairly. Your submission should clearly show the name of the person who contributed to each part. This will guide the instructor at the time of the discussion. * Do not write source code from scratch. You are expected to cite the reference(s) that you used. * Ask ChatGPT to explain main modules in the code. Capture the explanations and include them in your submission. Make sure you understand what you submitted because you will be asked to re-explain it in the assignment discussion. * Ask ChatGPT to explain to you the difference between REST, GraphQL, and gRPC and include the answer in your submission. * Ask ChatGPT to re-factor your REST code as gRPC/GraphQL. Make sure you ask ChatGPT to explain how the code was re-factored. Make sure you understand how the code was re-factored. Include the re-factored code