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lib/live_vue/ssr/node_js.ex
defmodule LiveVue.SSR.NodeJS do
@moduledoc """
Implements SSR by using `NodeJS` package.
Under the hood, it invokes "render" function exposed by `server.js` file.
You can see how `server.js` is created by looking at `assets.deploy` command
and `package.json` build-server script.
"""
@behaviour LiveVue.SSR
def render(name, props, slots) do
filename = Application.get_env(:live_vue, :ssr_filepath, "./vue/server.js")
try do
NodeJS.call!({filename, "render"}, [name, props, slots],
binary: true,
esm: true
)
catch
:exit, {:noproc, _} ->
message = """
NodeJS is not configured. Please add the following to your application.ex:
{NodeJS.Supervisor, [path: LiveVue.SSR.NodeJS.server_path(), pool_size: 4]},
"""
raise %LiveVue.SSR.NotConfigured{message: message}
end
end
def server_path() do
{:ok, path} = :application.get_application()
Application.app_dir(path, "/priv")
end
end