object Throttle
Transform a service to reject any calls the go over a given rate.
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- sealed abstract class TokenAvailability extends Product with Serializable
- trait TokenBucket[F[_]] extends AnyRef
A token bucket for use with the Throttle middleware.
A token bucket for use with the Throttle middleware. Consumers can take tokens which will be refilled over time. Implementations are required to provide their own refill mechanism.
Possible implementations include a remote TokenBucket service to coordinate between different application instances.
- final case class TokenUnavailable(retryAfter: Option[FiniteDuration]) extends TokenAvailability with Product with Serializable
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- def apply[F[_], G[_]](bucket: TokenBucket[F], throttleResponse: (Option[FiniteDuration]) ⇒ Response[G] = defaultResponse[G])(http: Http[F, G])(implicit F: Sync[F]): Http[F, G]
Limits the supplied service using a provided TokenBucket
Limits the supplied service using a provided TokenBucket
- bucket
a TokenBucket to use to track the rate of incoming requests.
- throttleResponse
a function that defines the response when throttled, may be supplied a suggested retry time depending on bucket implementation.
- http
the service to transform.
- returns
a task containing the transformed service.
- def apply[F[_], G[_]](amount: Int, per: FiniteDuration)(http: Http[F, G])(implicit F: Sync[F], timer: Clock[F]): F[Http[F, G]]
Limits the supplied service to a given rate of calls using an in-memory TokenBucket
Limits the supplied service to a given rate of calls using an in-memory TokenBucket
- amount
the number of calls to the service to permit within the given time period.
- per
the time period over which a given number of calls is permitted.
- http
the service to transform.
- returns
a task containing the transformed service.
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- object TokenAvailable extends TokenAvailability with Product with Serializable
- object TokenBucket