Time Limit: 2 hours

Tools Allowed: Google, official documentation, Stack Overflow (no AI tools)

Prerequisites

• TypeScript
• Express
• Zod
• Prisma (basic models, primary keys, 1:many relationships only)
• JWT Authentication
• Bun runtime
• PostgreSQL

Project Overview

Build a RESTful API for a course selling platform where:

• Users can sign up and log in
• Instructors can create courses
• Each course can have multiple lessons
• Users can purchase courses

Only 1:many relationships are allowed