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Arcjet · Method

aj.protect

Arcjet rate limiting limits how many requests a client can make during a time period. It can identify clients by IP address or by custom values such as a user ID.

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Syntax

const decision = await aj.protect(request, options);

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  • fixedWindow
  • tokenBucket
  • withRule
  • with_rule
  • createMiddleware
  • ArcjetDecision
  • characteristics

Source: Rate limiting reference for Next.js | Arcjet Docs. Checked 2026-11-03.