AddFlashToCtx takes flash messages stored in a cookie which is associated with the request found in ctx, and puts them inside the ctx object.

GetFlashes retieves all flash messages found in a cookie session associated with ctx.

New creates new flasher.

FlashErr is a context key for flash error message.

FlashSuccess is the context key for success flash messages.

FlashWarn is a context key for warning flash messages.

Flash implements flash messages, like ones in gorilla/sessions.

Flasher tracks flash messages.

Flashes is a collection of flash messages.