Frontend System Design
/Beginner
Rate Limiting Concepts
Definition
While usually a backend concern, frontend applications must gracefully handle HTTP 429 Too Many Requests responses, implementing exponential backoff and retry logic in their fetch wrappers.
Explain Like I'm New
If you rapidly smash the 'Submit' button 50 times, the server blocks you. The frontend needs to realize it got blocked and show a 'Please wait 60 seconds' timer instead of crashing.
Interview Questions
basic
- What is the core concept of Rate Limiting?
- What are the pros and cons of Rate Limiting?
intermediate
- How does Rate Limiting impact SEO and initial page load times?
- When would you NOT choose to use Rate Limiting?
advanced
- How does Rate Limiting fit into a heavily scaled microservices architecture?
- What are the security implications of Rate Limiting?
trick
- Can you combine Rate Limiting with other rendering strategies on the same page?