Answer
Rate limiting restricts excessive requests per user to prevent abuse, brute force, and server overload.
Quick Answer
Rate limiting restricts each client to N requests per time window. Without it, one bad actor can send millions of requests, overloading your server or triggering excessive costs. express-rate-limit lets you set limits by IP. For distributed systems (multiple Node instances), use a shared Redis store so limits are enforced across all instances.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ