Elm send message to mailbox in update function -

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• trigger action update function 1 answer

i've following action handler in update function of elm startapp muv framework.

signupalertmailbox : signal.mailbox string signupalertmailbox =   signal.mailbox ""  update : action -> model -> (model, effects action) update action model =   case action of     submit ->       let isinputvalid = dict.foldl (\fieldname fieldstate validity -> if validity                                                                 (fieldstate == isokay)                                                                 else validity)                                                                 true model.inputstate           rnd = log "input valid" isinputvalid       -- in (model, effects.none)       in if isinputvalid             (model, signal.send signupalertmailbox.address "oh snap! change few things , try submitting again."                                 |> effects.task                                 |> effects.map (always submit))             else (model, signal.send signupalertmailbox.address "well done! input correct!"                                 |> effects.task                                 |> effects.map (always submit)) 

upon submit action, can see log message in browser console, no message being sent signupalertmailbox. please me issue.

-- edit

the startapp wiring code requested in comment below:

import startapp exposing (start) import time exposing (every, second)  import pages.signup.model import pages.signup.update exposing (signupalertmailbox) import pages.signup.view  app =   start     { init = pages.signup.model.init     , view = pages.signup.view.view     , update = pages.signup.update.update     , inputs = []     } 

the reason hadnt handed on app.tasks port executed mentioned chad gilbert @chad-gilbert in comment above. thanks!

i added following section , started getting messages in sigupalertmailbox mailbox update function

port tasks : signal (task.task never ()) port tasks =   app.tasks