Answer
Rate limiting restricts how many requests a client can make in a given time to prevent abuse and overload.
Quick Answer
Rate limiting restricts how many requests a client can make in a given time window. Without it, a single client can spam your API with thousands of requests per second — slowing or crashing it. Use express-rate-limit to add: 100 requests per 15 minutes per IP. Essential for preventing abuse, DDoS, and brute-force attacks.
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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.
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Source: SugharaIQ