o

org.http4s.server.middleware

ConcurrentRequests

object ConcurrentRequests

Middlewares for tracking the quantity of concurrent requests.

These are generalized middlewares and can be used to implement metrics, logging, max concurrent requests, etc.

Source
ConcurrentRequests.scala
Note

The concurrent request count is decremented on the completion of the Response body, or in the event of any error, and is guaranteed to only occur once.

Linear Supertypes
AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. ConcurrentRequests
  2. AnyRef
  3. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Value Members

  1. def app[F[_]](onIncrement: (Long) ⇒ F[Unit], onDecrement: (Long) ⇒ F[Unit])(implicit arg0: Async[F]): F[(Kleisli[F, ContextRequest[F, Long], Response[F]]) ⇒ Kleisli[F, Request[F], Response[F]]]

    Run a side effect each time the concurrent request count increments and decrements.

    Run a side effect each time the concurrent request count increments and decrements.

    Note

    Each side effect is given the current number of concurrent requests as an argument.

    ,

    onIncrement should never be < 1 and onDecrement should never be value < 0.

  2. def app2[F[_], G[_]](onIncrement: (Long) ⇒ G[Unit], onDecrement: (Long) ⇒ G[Unit])(implicit arg0: Sync[F], arg1: Async[G]): F[(Kleisli[G, ContextRequest[G, Long], Response[G]]) ⇒ Kleisli[G, Request[G], Response[G]]]

    Run a side effect each time the concurrent request count increments and decrements.

    Run a side effect each time the concurrent request count increments and decrements.

    Note

    Each side effect is given the current number of concurrent requests as an argument.

    ,

    onIncrement should never be < 1 and onDecrement should never be value < 0.

    ,

    This is the same as #app, but allows for the inner and outer effect types to differ.

  3. def onChangeApp[F[_]](onChange: (Long) ⇒ F[Unit])(implicit arg0: Async[F]): F[(Kleisli[F, ContextRequest[F, Long], Response[F]]) ⇒ Kleisli[F, Request[F], Response[F]]]

    As #app, but runs the same effect on increment and decrement of the concurrent request count.

  4. def onChangeRoute[F[_]](onChange: (Long) ⇒ F[Unit])(implicit arg0: Async[F]): F[ContextMiddleware[F, Long]]

    As #route, but runs the same effect on increment and decrement of the concurrent request count.

  5. def route[F[_]](onIncrement: (Long) ⇒ F[Unit], onDecrement: (Long) ⇒ F[Unit])(implicit arg0: Async[F]): F[ContextMiddleware[F, Long]]

    Run a side effect each time the concurrent request count increments and decrements.

    Run a side effect each time the concurrent request count increments and decrements.

    Note

    Each side effect is given the current number of concurrent requests as an argument.

    ,

    onIncrement should never be < 1 and onDecrement should never be value < 0.

  6. def route2[F[_], G[_]](onIncrement: (Long) ⇒ G[Unit], onDecrement: (Long) ⇒ G[Unit])(implicit arg0: Sync[F], arg1: Async[G]): F[ContextMiddleware[G, Long]]

    Run a side effect each time the concurrent request count increments and decrements.

    Run a side effect each time the concurrent request count increments and decrements.

    Note

    Each side effect is given the current number of concurrent requests as an argument.

    ,

    onIncrement should never be < 1 and onDecrement should never be value < 0.

    ,

    This is the same as #route, but allows for the inner and outer effect types to differ.