Middleware that adds session-based flash store that persists only to the next request in the same session.
flash-request
added in 1.2
(flash-request request)
Adds :flash key to request from :_flash in session.
flash-response
added in 1.2
(flash-response response request)
If response has a :flash key, saves it in :_flash of session for next request.
wrap-flash
(wrap-flash handler)
If a :flash key is set on the response by the handler, a :flash key with the same value will be set on the next request that shares the same session. This is useful for small messages that persist across redirects.