Hey there! 👋

Thanks for your interest in joining the Thrive Dev team. In order for us to better evaluate your experience, skills, and fit for our team, we'd like you complete a small coding challenge designed to test the abilities of mid-senior level back-end engineers

The challenge

You are building out an ordering API for an e-commerce platform. You're working on the user story "As a user, I can submit my order and payment details to the system, in order to complete my purchase.""

The acceptance criteria are:

Functional requirements

• Create a cart, add items, remove items. Total price is retained at current prices of the items, not the price at the time of being added to the cart.

  • Items added to cart must exist
  • Items added to cart must be in stock

• Place an order by providing payment details: cardNo, expiryDate, CVC no, and cartNumber.

  • Items in cart must be in stock at time of order
  • Cart instance should be converted to an order
    • Order should now have itemized static prices equal to price at time of order
    • Total reflects the cost of items at time of order
  • Returning order number and order status, and total charge.

Non-functional requirements

• API calls must be idempotent
• You must:
  • use Typescript in node.js OR a statically-typed language of your choice
  • use a REST or graphQL (preferred) as the API layer
  • a persistence layer
• The rest of your implementation is down to you (libraries, frameworks, etc)

Guidance

• Implement best practices of API design
• Consider concurrency
• Read all the requirements. Assessment will be made based on number of requirements satisfied

For your code submission, it's preferred that you send us a link to a GIT repository showing your personal commits, rather than a zip file, but a ZIP is acceptable. Your submission should include:

• the code

• a complete README on how to run the code, including any environment variables

• if you use an RDBM persistence layer , provide the SQL schema as a SQL file

Thank you! Happy coding :)