Phoenix lib/router.ex with 5 minute compilation time.

router.ex

defmodule DemoBe.Router do
  use Phoenix.Router

  pipeline :browser do
    plug :accepts, ~w(html)
    plug :fetch_session
    plug :fetch_flash
    plug :protect_from_forgery
  end

  pipeline :api do
    plug :accepts, ~w(json)
    plug PlugCors, origins: "*",
                   supports_credentials: true,
                   methods: ["GET", "POST", "OPTIONS", "DELETE", "PUT", "PATCH", "HEAD"],
                   headers: ["Authorization", "Access-Control-Allow-Origin",
                             "Access-Control-Allow-Credentials",
                             "Access-Control-Request-Headers",
                             "Access-Control-Request-Method"],
                   expose_header: ["Authorization", "Access-Control-Allow-Origin",
                                   "Access-Control-Allow-Credentials",
                                   "Access-Control-Allow-Methods",
                                   "Access-Control-Max-Age",
                                   "Access-Control-Allow-Headers"]
    plug PlugAuth.Authentication.Token, source: :params, param: "auth_token", error: ~s'{"error":"authentication required"}'
  end

  pipeline :login do
    plug :accepts, ~w(json)
    plug PlugCors, origins: "*",
                   supports_credentials: true,
                   methods: ["POST", "OPTIONS"],
                   headers: ["Authorization", "Access-Control-Allow-Origin",
                             "Access-Control-Allow-Credentials",
                             "Access-Control-Request-Headers",
                             "Access-Control-Request-Method"],
                   expose_header: ["Authorization", "Access-Control-Allow-Origin",
                                   "Access-Control-Allow-Credentials",
                                   "Access-Control-Allow-Methods",
                                   "Access-Control-Max-Age",
                                   "Access-Control-Allow-Headers"]
  end

  scope "/api", DemoBe do
    pipe_through :api

    options "/gentes", GenteController, :options
    options "/gentes/new", GenteController, :options
    options "/gentes/:id", GenteController, :options
    options "/gentes/:id/edit", GenteController, :options
    get     "/gentes", GenteController, :index
    get     "/gentes/:id/edit", GenteController, :edit
    get     "/gentes/new", GenteController, :new
    get     "/gentes/:id", GenteController, :show
    post    "/gentes", GenteController, :create
    patch   "/gentes/:id", GenteController, :update
    put     "/gentes/:id", GenteController, :update
    delete  "/gentes/:id", GenteController, :destroy

    options "/tchaus", TchauController, :options
    options "/tchaus/new", TchauController, :options
    options "/tchaus/:id", TchauController, :options
    options "/tchaus/:id/edit", TchauController, :options
    get     "/tchaus", TchauController, :index
    get     "/tchaus/:id/edit", TchauController, :edit
    get     "/tchaus/new", TchauController, :new
    get     "/tchaus/:id", TchauController, :show
    post    "/tchaus", TchauController, :create
    patch   "/tchaus/:id", TchauController, :update
    put     "/tchaus/:id", TchauController, :update
    delete  "/tchaus/:id", TchauController, :destroy

    options "/obrigados", ObrigadoController, :options
    options "/obrigados/new", ObrigadoController, :options
    options "/obrigados/:id", ObrigadoController, :options
    options "/obrigados/:id/edit", ObrigadoController, :options
    get     "/obrigados", ObrigadoController, :index
    get     "/obrigados/:id/edit", ObrigadoController, :edit
    get     "/obrigados/new", ObrigadoController, :new
    get     "/obrigados/:id", ObrigadoController, :show
    post    "/obrigados", ObrigadoController, :create
    patch   "/obrigados/:id", ObrigadoController, :update
    put     "/obrigados/:id", ObrigadoController, :update
    delete  "/obrigados/:id", ObrigadoController, :destroy

    options "/muitos", MuitoController, :options
    options "/muitos/new", MuitoController, :options
    options "/muitos/:id", MuitoController, :options
    options "/muitos/:id/edit", MuitoController, :options
    get     "/muitos", MuitoController, :index
    get     "/muitos/:id/edit", MuitoController, :edit
    get     "/muitos/new", MuitoController, :new
    get     "/muitos/:id", MuitoController, :show
    post    "/muitos", MuitoController, :create
    patch   "/muitos/:id", MuitoController, :update
    put     "/muitos/:id", MuitoController, :update
    delete  "/muitos/:id", MuitoController, :destroy

    options "/jeitos", JeitoController, :options
    options "/jeitos/new", JeitoController, :options
    options "/jeitos/:id", JeitoController, :options
    options "/jeitos/:id/edit", JeitoController, :options
    get     "/jeitos", JeitoController, :index
    get     "/jeitos/:id/edit", JeitoController, :edit
    get     "/jeitos/new", JeitoController, :new
    get     "/jeitos/:id", JeitoController, :show
    post    "/jeitos", JeitoController, :create
    patch   "/jeitos/:id", JeitoController, :update
    put     "/jeitos/:id", JeitoController, :update
    delete  "/jeitos/:id", JeitoController, :destroy

    options "/ums", UmController, :options
    options "/ums/new", UmController, :options
    options "/ums/:id", UmController, :options
    options "/ums/:id/edit", UmController, :options
    get     "/ums", UmController, :index
    get     "/ums/:id/edit", UmController, :edit
    get     "/ums/new", UmController, :new
    get     "/ums/:id", UmController, :show
    post    "/ums", UmController, :create
    patch   "/ums/:id", UmController, :update
    put     "/ums/:id", UmController, :update
    delete  "/ums/:id", UmController, :destroy

    options "/dars", DarController, :options
    options "/dars/new", DarController, :options
    options "/dars/:id", DarController, :options
    options "/dars/:id/edit", DarController, :options
    get     "/dars", DarController, :index
    get     "/dars/:id/edit", DarController, :edit
    get     "/dars/new", DarController, :new
    get     "/dars/:id", DarController, :show
    post    "/dars", DarController, :create
    patch   "/dars/:id", DarController, :update
    put     "/dars/:id", DarController, :update
    delete  "/dars/:id", DarController, :destroy

    options "/vais", VaiController, :options
    options "/vais/new", VaiController, :options
    options "/vais/:id", VaiController, :options
    options "/vais/:id/edit", VaiController, :options
    get     "/vais", VaiController, :index
    get     "/vais/:id/edit", VaiController, :edit
    get     "/vais/new", VaiController, :new
    get     "/vais/:id", VaiController, :show
    post    "/vais", VaiController, :create
    patch   "/vais/:id", VaiController, :update
    put     "/vais/:id", VaiController, :update
    delete  "/vais/:id", VaiController, :destroy

    options "/legals", LegalController, :options
    options "/legals/new", LegalController, :options
    options "/legals/:id", LegalController, :options
    options "/legals/:id/edit", LegalController, :options
    get     "/legals", LegalController, :index
    get     "/legals/:id/edit", LegalController, :edit
    get     "/legals/new", LegalController, :new
    get     "/legals/:id", LegalController, :show
    post    "/legals", LegalController, :create
    patch   "/legals/:id", LegalController, :update
    put     "/legals/:id", LegalController, :update
    delete  "/legals/:id", LegalController, :destroy

    options "/es", EController, :options
    options "/es/new", EController, :options
    options "/es/:id", EController, :options
    options "/es/:id/edit", EController, :options
    get     "/es", EController, :index
    get     "/es/:id/edit", EController, :edit
    get     "/es/new", EController, :new
    get     "/es/:id", EController, :show
    post    "/es", EController, :create
    patch   "/es/:id", EController, :update
    put     "/es/:id", EController, :update
    delete  "/es/:id", EController, :destroy

    options "/elixirs", ElixirController, :options
    options "/elixirs/new", ElixirController, :options
    options "/elixirs/:id", ElixirController, :options
    options "/elixirs/:id/edit", ElixirController, :options
    get     "/elixirs", ElixirController, :index
    get     "/elixirs/:id/edit", ElixirController, :edit
    get     "/elixirs/new", ElixirController, :new
    get     "/elixirs/:id", ElixirController, :show
    post    "/elixirs", ElixirController, :create
    patch   "/elixirs/:id", ElixirController, :update
    put     "/elixirs/:id", ElixirController, :update
    delete  "/elixirs/:id", ElixirController, :destroy

    options "/odd_bugs", OddBugController, :options
    options "/odd_bugs/new", OddBugController, :options
    options "/odd_bugs/:id", OddBugController, :options
    options "/odd_bugs/:id/edit", OddBugController, :options
    get     "/odd_bugs", OddBugController, :index
    get     "/odd_bugs/:id/edit", OddBugController, :edit
    get     "/odd_bugs/new", OddBugController, :new
    get     "/odd_bugs/:id", OddBugController, :show
    post    "/odd_bugs", OddBugController, :create
    patch   "/odd_bugs/:id", OddBugController, :update
    put     "/odd_bugs/:id", OddBugController, :update
    delete  "/odd_bugs/:id", OddBugController, :destroy

    options "/thanks_for_helpings", ThanksForHelpingController, :options
    options "/thanks_for_helpings/new", ThanksForHelpingController, :options
    options "/thanks_for_helpings/:id", ThanksForHelpingController, :options
    options "/thanks_for_helpings/:id/edit", ThanksForHelpingController, :options
    get     "/thanks_for_helpings", ThanksForHelpingController, :index
    get     "/thanks_for_helpings/:id/edit", ThanksForHelpingController, :edit
    get     "/thanks_for_helpings/new", ThanksForHelpingController, :new
    get     "/thanks_for_helpings/:id", ThanksForHelpingController, :show
    post    "/thanks_for_helpings", ThanksForHelpingController, :create
    patch   "/thanks_for_helpings/:id", ThanksForHelpingController, :update
    put     "/thanks_for_helpings/:id", ThanksForHelpingController, :update
    delete  "/thanks_for_helpings/:id", ThanksForHelpingController, :destroy

    options "/have_good_days", HaveGoodDayController, :options
    options "/have_good_days/new", HaveGoodDayController, :options
    options "/have_good_days/:id", HaveGoodDayController, :options
    options "/have_good_days/:id/edit", HaveGoodDayController, :options
    get     "/have_good_days", HaveGoodDayController, :index
    get     "/have_good_days/:id/edit", HaveGoodDayController, :edit
    get     "/have_good_days/new", HaveGoodDayController, :new
    get     "/have_good_days/:id", HaveGoodDayController, :show
    post    "/have_good_days", HaveGoodDayController, :create
    patch   "/have_good_days/:id", HaveGoodDayController, :update
    put     "/have_good_days/:id", HaveGoodDayController, :update
    delete  "/have_good_days/:id", HaveGoodDayController, :destroy

    options "/quuxs", QuuxController, :options
    options "/quuxs/new", QuuxController, :options
    options "/quuxs/:id", QuuxController, :options
    options "/quuxs/:id/edit", QuuxController, :options
    get     "/quuxs", QuuxController, :index
    get     "/quuxs/:id/edit", QuuxController, :edit
    get     "/quuxs/new", QuuxController, :new
    get     "/quuxs/:id", QuuxController, :show
    post    "/quuxs", QuuxController, :create
    patch   "/quuxs/:id", QuuxController, :update
    put     "/quuxs/:id", QuuxController, :update
    delete  "/quuxs/:id", QuuxController, :destroy

    options "/bazs", BazController, :options
    options "/bazs/new", BazController, :options
    options "/bazs/:id", BazController, :options
    options "/bazs/:id/edit", BazController, :options
    get     "/bazs", BazController, :index
    get     "/bazs/:id/edit", BazController, :edit
    get     "/bazs/new", BazController, :new
    get     "/bazs/:id", BazController, :show
    post    "/bazs", BazController, :create
    patch   "/bazs/:id", BazController, :update
    put     "/bazs/:id", BazController, :update
    delete  "/bazs/:id", BazController, :destroy

    options "/bars", BarController, :options
    options "/bars/new", BarController, :options
    options "/bars/:id", BarController, :options
    options "/bars/:id/edit", BarController, :options
    get     "/bars", BarController, :index
    get     "/bars/:id/edit", BarController, :edit
    get     "/bars/new", BarController, :new
    get     "/bars/:id", BarController, :show
    post    "/bars", BarController, :create
    patch   "/bars/:id", BarController, :update
    put     "/bars/:id", BarController, :update
    delete  "/bars/:id", BarController, :destroy

    options "/foos", FooController, :options
    options "/foos/new", FooController, :options
    options "/foos/:id", FooController, :options
    options "/foos/:id/edit", FooController, :options
    get     "/foos", FooController, :index
    get     "/foos/:id/edit", FooController, :edit
    get     "/foos/new", FooController, :new
    get     "/foos/:id", FooController, :show
    post    "/foos", FooController, :create
    patch   "/foos/:id", FooController, :update
    put     "/foos/:id", FooController, :update
    delete  "/foos/:id", FooController, :destroy



  end

  scope "/login", DemoBe do
    pipe_through :login

    options "/", LoginController, :options
    post "/", LoginController, :authenticate
  end

end