lib/static.ex
defmodule Sample.Static do
use Plug.Router
@app :application.get_env(:n2o, :app, :sample)
@dir :application.get_env(:n2o, :upload, "priv/static")
plug Plug.Static, at: "/app", from: { @app, @dir }
plug Plug.Static, at: "/", from: { @app, @dir }
match _ do send_resp(conn, 404, "Please refer to https://n2o.dev for more information.") end
end