update to phoenix 1.6

assets/js/app.js

@@ -1,31 +1,33 @@
-// We need to import the CSS so that webpack will load it.
-// The MiniCssExtractPlugin is used to separate it out into
-// its own CSS file.
+// We import the CSS which is extracted to its own file by esbuild.
+// Remove this line if you add a your own CSS build pipeline (e.g postcss).
 import "../css/app.scss"
 
-// webpack automatically bundles all modules in your
-// entry points. Those entry points can be configured
-// in "webpack.config.js".
-//
-// Import deps with the dep name or local files with a relative path, for example:
-//
-//     import {Socket} from "phoenix"
-//     import socket from "./socket"
-//
-import "phoenix_html"
-import {Socket} from "phoenix"
-import topbar from "topbar"
-import {LiveSocket} from "phoenix_live_view"
+// If you want to use Phoenix channels, run `mix help phx.gen.channel`
+// to get started and then uncomment the line below.
+// import "./user_socket.js"
 
-let Hooks = {};
-Hooks.MaintainAttrs = {
-  attrs(){ return this.el.getAttribute("data-attrs").split(", ") },
-  beforeUpdate(){ this.prevAttrs = this.attrs().map(name => [name, this.el.getAttribute(name)]) },
-  updated(){ this.prevAttrs.forEach(([name, val]) => this.el.setAttribute(name, val)) }
-};
+// You can include dependencies in two ways.
+//
+// The simplest option is to put them in assets/vendor and
+// import them using relative paths:
+//
+//     import "../vendor/some-package.js"
+//
+// Alternatively, you can `npm install some-package --prefix assets` and import
+// them using a path starting with the package name:
+//
+//     import "some-package"
+//
+
+// Include phoenix_html to handle method=PUT/DELETE in forms and buttons.
+import "phoenix_html"
+// Establish Phoenix Socket and LiveView configuration.
+import {Socket} from "phoenix"
+import {LiveSocket} from "phoenix_live_view"
+import topbar from "../vendor/topbar"
 
 let csrfToken = document.querySelector("meta[name='csrf-token']").getAttribute("content")
-let liveSocket = new LiveSocket("/live", Socket, {hooks: Hooks, params: {_csrf_token: csrfToken}})
+let liveSocket = new LiveSocket("/live", Socket, {params: {_csrf_token: csrfToken}})
 
 // Show progress bar on live navigation and form submits
 topbar.config({barColors: {0: "#29d"}, shadowColor: "rgba(0, 0, 0, .3)"})
@@ -40,4 +42,3 @@ liveSocket.connect()
 // >> liveSocket.enableLatencySim(1000)  // enabled for duration of browser session
 // >> liveSocket.disableLatencySim()
 window.liveSocket = liveSocket
-

assets/js/socket.js

@@ -1,63 +0,0 @@
-// NOTE: The contents of this file will only be executed if
-// you uncomment its entry in "assets/js/app.js".
-
-// To use Phoenix channels, the first step is to import Socket,
-// and connect at the socket path in "lib/web/endpoint.ex".
-//
-// Pass the token on params as below. Or remove it
-// from the params if you are not using authentication.
-import {Socket} from "phoenix"
-
-let socket = new Socket("/socket", {params: {token: window.userToken}})
-
-// When you connect, you'll often need to authenticate the client.
-// For example, imagine you have an authentication plug, `MyAuth`,
-// which authenticates the session and assigns a `:current_user`.
-// If the current user exists you can assign the user's token in
-// the connection for use in the layout.
-//
-// In your "lib/web/router.ex":
-//
-//     pipeline :browser do
-//       ...
-//       plug MyAuth
-//       plug :put_user_token
-//     end
-//
-//     defp put_user_token(conn, _) do
-//       if current_user = conn.assigns[:current_user] do
-//         token = Phoenix.Token.sign(conn, "user socket", current_user.id)
-//         assign(conn, :user_token, token)
-//       else
-//         conn
-//       end
-//     end
-//
-// Now you need to pass this token to JavaScript. You can do so
-// inside a script tag in "lib/web/templates/layout/app.html.eex":
-//
-//     <script>window.userToken = "<%= assigns[:user_token] %>";</script>
-//
-// You will need to verify the user token in the "connect/3" function
-// in "lib/web/channels/user_socket.ex":
-//
-//     def connect(%{"token" => token}, socket, _connect_info) do
-//       # max_age: 1209600 is equivalent to two weeks in seconds
-//       case Phoenix.Token.verify(socket, "user socket", token, max_age: 1209600) do
-//         {:ok, user_id} ->
-//           {:ok, socket |> assign(:user, user_id)}
-//         {:error, reason} ->
-//           :error
-//       end
-//     end
-//
-// Finally, connect to the socket:
-socket.connect()
-
-// Now that you are connected, you can join channels with a topic:
-let channel = socket.channel("topic:subtopic", {})
-channel.join()
-  .receive("ok", resp => { console.log("Joined successfully", resp) })
-  .receive("error", resp => { console.log("Unable to join", resp) })
-
-export default socket