Skip to content
Skills
Problems
Questions
Drills
Roles
Skills
Interview
Contest
Leaderboard
Problems
Questions
Drills
Roles
Skills
Interview
Contest
Leaderboard
Home
/
Backend Developer
/
Questions
/
API Design
Backend Developer
API Design questions
5 questions on API Design for backend developers, easiest first.
Medium
4
Offset or cursor pagination
medium
Token bucket rate limiter
medium
A 64-bit id changes after parsing
medium
Saving req.body directly
medium
Hard
1
Safe retries for payments
hard
