NAME

       Webapp::storeFunction - Save application state persistently.

SYNOPSIS

       String storeFunction( String(String) storer, b(a) fn, a state )

ARGUMENTS

       storer A function that stores the state (which will be encoded as a String) and returns a key that can be
       used to retrieve it.

       fn The function to call when the state is retrieved.

       state The state to pass to fn

DESCRIPTION

       This  lets  you  save  application  state  and a handler function to an external source, and get a key to
       retrieve it later. The storage function should throw an exception if it is unable  to  store  the  state.
       Otherwise  it  should  return  a key that can be used with Webapp.retrieveFunction (3kaya) to execute the
       state later. This lets you make URLs much shorter than is possibly by passing the state directly.

       You may need to consider expiring old and unused states from your persistent storage  if  they  have  not
       been retrieved for some time.

AUTHORS

       Kaya  standard  library  by  Edwin  Brady,  Chris  Morris  and  others  (kaya@kayalang.org).  For further
       information see http://kayalang.org/

LICENSE

       The Kaya standard library is free software; you can redistribute it and/or modify it under the  terms  of
       the  GNU  Lesser  General  Public  License  (version  2.1  or any later version) as published by the Free
       Software Foundation.

RELATED

       Webapp.runHandler (3kaya)
       Webapp.retrieveFunction (3kaya)

Kaya                                                July 2013                        Webapp.storeFunction(3kaya)