fast-twitch.middlewares.flash

Usage and execution boundary

Transfers one-time flash data through the session. Request loading clears the saved flash and response :flash stores the next value. Session loading/saving must surround this wrapper.

(ns application.middleware
  (:require [fast-twitch.middlewares.flash :as middleware]))

(defn handler [_]
  {:status 200 :headers {"content-type" "text/plain"} :body "Hello"})

(def app (middleware/wrap-flash handler))

This defines the Ring handler portion. Adapt app through routing/ft-handler or pass it to server/listen!; startup instructions and a complete walkthrough show the surrounding project.

Wrapper order and all middleware families. The function reference below preserves the upstream signatures and source links; helper functions do not all share the wrapper's arity.

Upstream function reference

Moves flash data between the session and request or response maps.

flash-request

(flash-request request)

Function.

Loads flash data from the session and clears it for the next request. Source

flash-response

(flash-response response request)

Function.

Stores outgoing flash data back into the session. Source

wrap-flash

(wrap-flash handler)

Function.

Wraps a handler with flash loading and persistence. Source