ratelimiter

package
v0.3.5 Latest Latest
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 Go to latest Published: Mar 15, 2026 License: MIT Imports: 4 Imported by: 0

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Constants

View Source 
const Lens scene.InfraName = "ratelimiter"

Variables

View Source 
var (
	ErrInvalidLimit  = errors.New("ratelimiter: limit must be greater than zero")
	ErrInvalidWindow = errors.New("ratelimiter: window must be greater than zero")
	ErrEmptyKey      = errors.New("ratelimiter: key cannot be empty")
	ErrInvalidN      = errors.New("ratelimiter: n must be greater than zero and less than or equal to limit")
)

Functions

This section is empty.

Types

type Decision 

type Decision struct {
	Allowed bool

	// Limit is the quota limit of the current policy.
	Limit int
	// Remaining is the estimated units left after this decision.
	Remaining int

	// RetryAfter indicates how long caller should wait before retrying.
	// It is zero when Allowed is true.
	RetryAfter time.Duration
}

Decision is the verbose result of a rate limit attempt.

type Limiter 

type Limiter interface {
	scene.Named
	Allow(ctx context.Context, key string) (Decision, error)
	AllowN(ctx context.Context, key string, n int) (Decision, error)
}

Limiter is a verbose and implementation-agnostic rate limiter contract.

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