Mimo Backend Coding Challenge
Your objective is to create a basic version of the Mimo server functionality.
The point of this exercise is not to create a fully-functional bug-free server implementation, but rather to look how you would design such a server system and how you approach different problems.
Write the server with ASP.NET, backed by Entity Framework Core with SQLite as database (so we don't have to setup a full blown database).
The server should expose only REST endpoints using JSON as the format. Data structure Courses
There are multiple courses (create a "Swift", "Javascript" and "C#" course in the database)
Each course has multiple chapters
Chapters have a specific order in which they are displayed
Each chapter has multiple lessons
Lessons have a specific order in which they are displayed
Users
There are multiple users accessing the REST endpoints (e.g., from the Mimo app)
You don't have to create an authentication system, just hardcode any user-specific actions to a single user
Each user can solve multiple lessons
Each lesson can be solved multiple times
Track the time the user starts the lessons and the time the user completes the lesson
Achievements
There are achievements for completing different objectives (see below)
Each user can complete each of the achievements below
Once a user completes an achievement, mark it as completed
Objectives
Complete 5 lessons
Complete 25 lessons
Complete 50 lessons
Complete 1 chapter
Complete 5 chapters
Complete the Swift course
Complete the Javascript course
Complete the C# course
API Lesson progress
Create an endpoint where the Mimo app can send information about lessons that the user completed to. The app will send the following data:
Which lesson was completed
When was the lesson started
When was the lesson completed
Achievements
Create an endpoint where the Mimo app can request which achievements the users has completed The app needs the following data:
An identifier for the achievement
If the achievement is completed or not
What the progress of the achievement is (e.g. if the user solved three lessons, it should return "3" for the lesson completion achievements) Add Comment C