Drab: remote controlled frontend framework for Phoenix

Your Libraries & OS Mentoring Libraries
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286

###What if we could write the optimistic updates on the server side, using Elixir and Drab.Element-like DSL?

optimistic_before :save_data do
  set_prop "#name", value: "...processing...", disabled: true
end

def save_data(socket, _sender) do
  set_prop socket, "#name", value: Database.get_name()
end

optimistic_after :save_data do
  set_prop "#name", disabled: false
end

optimistic_before must compile to javascript, which is not so complicated, as set_prop/2 is simply translated to JS "Drab.set_prop(#{encode_js(selector)}, #{encode_js(properties)})". This JS would be sent to the browser on connect, and register to run before and after the event.

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