Coding Problems

Browse and solve coding challenges to improve your skills

TitleTagsCategoryStatusAction
Todolist API with authentication
Create a simple todo Rest API with features to add, complete, and delete tasks, protected by user authentication.
API
Authentication
backend
medium
0%
4 hours
See
Library management API
Build an API for a library to manage its catalogue, rentals and returns.
CRUD
API
backend
medium
0%
3 hours
See
Hello World API
Get started with building your first API
Beginner
API
backend
easy
33%
1 hour
See
Todolist API
Create a simple todo Rest API with features to add, complete, and delete tasks.
Express
Rest API
backend
easy
9%
1 hour
See
Search Engine I
Get started on the first variant of building a search engine
search engine
algorithms
backend
easy
0%
1 hour
See
URL shortener
Create a url shortener API
in-memory storage
express
redirection
backend
medium
9%
4 hours
See
Real-Time Game Leaderboard
Implement an ELO rating system for a game leaderboard.
backend
leaderboard
backend
hard
0%
5 hours
See