Backend
Rate Limiting
Controlling the number of requests a user or client can make to an API within a time period.
Why it matters
- Protects against abuse and denial of service
- Ensures fair usage across all users
- Prevents system overload
When to use
- On any public-facing API
- When offering tiered API access plans
- To protect expensive operations
Common mistakes
- Setting limits too strict, blocking legitimate users
- Not communicating limits clearly to users
- Using inconsistent rate limit windows
Related terms
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