Template package for writing headless Elm

This is a sample package that demonstrates how to write an application that can be run via node. It works by:

• Building an elm bundle to build/elm-bundle.js
• Using index.js to bootstrap the Elm application
• Using ports to communicate back and forth between Javascript and Elm
• Using Html.App.programWithFlags to supply Elm with input when it starts

Given this setup, its pretty easy to start swapping things out. For example, you could use something like JS Commander to write your applicaiton help menu and modify the Flags type in Elm to take parameters in from the command line (with type safety!). The only weird part is the view function. Since it uses the Html module for the program type it still takes in a view, it just never gets embedded into anything.

Running

Just execute make name=MyName in the root of this workspace. Checkout the Makefile to see what that does. You'll see the following.

elm make ./src/elm/Main.elm --output build/elm-bundle.js
Success! Compiled 1 module.
Successfully generated build/elm-bundle.js
node ./index.js Anthony
listening for elm messages
Elm said: { message: 'Hello Anthony', times: 1 }
Javascript said: { message = "Hey elm!", times = 2 }
Elm said: { message: 'Hey Javascript...', times: 3 }
Javascript said: { message = "Hey elm!", times = 4 }
Elm said: { message: 'Hey Javascript...', times: 5 }
Javascript said: { message = "Hey elm!", times = 6 }
Elm said: { message: 'Hey Javascript...', times: 7 }