live_svelte/example_project/lib/example_web/endpoint.ex

defmodule ExampleWeb.Endpoint do
  use Phoenix.Endpoint, otp_app: :example
  import PhoenixVite.Plug

  # The session will be stored in the cookie and signed,
  # this means its contents can be read but not tampered with.
  # Set :encryption_salt if you would also like to encrypt it.
  @session_options [
    store: :cookie,
    key: "_example_key",
    signing_salt: "co1uLGVh",
    same_site: "Lax"
  ]

  socket "/live", Phoenix.LiveView.Socket, websocket: [connect_info: [session: @session_options]]

  plug :favicon, dev_server: {PhoenixVite.Components, :has_vite_watcher?, [__MODULE__]}

  # In test, prevent caching of assets so E2E always loads the latest app.js after mix assets.js
  if Mix.env() == :test do
    plug :no_cache_assets

    defp no_cache_assets(conn, _opts) do
      Plug.Conn.register_before_send(conn, fn c ->
        if String.starts_with?(c.request_path, "/assets/") do
          Plug.Conn.put_resp_header(c, "cache-control", "no-store, no-cache, must-revalidate")
        else
          c
        end
      end)
    end
  end

  # Serve at "/" the static files from "priv/static" directory.
  #
  # You should set gzip to true if you are running phx.digest
  # when deploying your static files in production.
  plug Plug.Static,
    at: "/",
    from: :example,
    gzip: false,
    only: ExampleWeb.static_paths()

  # Code reloading can be explicitly enabled under the
  # :code_reloader configuration of your endpoint.
  if code_reloading? do
    socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
    plug Phoenix.LiveReloader
    plug Phoenix.CodeReloader
    plug Phoenix.Ecto.CheckRepoStatus, otp_app: :example
  end

  plug Phoenix.LiveDashboard.RequestLogger,
    param_key: "request_logger",
    cookie_key: "request_logger"

  plug Plug.RequestId
  plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]

  plug Plug.Parsers,
    parsers: [:urlencoded, :multipart, :json],
    pass: ["*/*"],
    json_decoder: Phoenix.json_library()

  plug Plug.MethodOverride
  plug Plug.Head
  plug Plug.Session, @session_options
  plug ExampleWeb.Router


end