done

lib/python3.11/site-packages/dash/nbextension/dash.json

@@ -0,0 +1,5 @@
+{
+  "load_extensions": {
+    "dash/main": true
+  }
+}

lib/python3.11/site-packages/dash/nbextension/main.js

@@ -0,0 +1,42 @@
+// file my_extension/main.js
+
+define([
+    'base/js/namespace',
+    'base/js/utils',
+], function(Jupyter, utils){
+
+    function load_ipython_extension(){
+        var notebookUrl = window.location.href
+        var baseUrl = utils.get_body_data('baseUrl');
+        var baseNotebooks = baseUrl + "notebooks"
+        var n = notebookUrl.search(baseNotebooks)
+        var jupyterServerUrl = notebookUrl.slice(0, n)
+
+        var register_comm = function() {
+            Jupyter.notebook.kernel.comm_manager.register_target('dash',
+                function (comm, msg) {
+                    // Register handlers for later messages:
+                    comm.on_msg(function (msg) {
+                        console.log("Dash message", msg);
+                        var msgData = msg.content.data;
+                        if (msgData.type === 'base_url_request') {
+                            comm.send({
+                                type: 'base_url_response',
+                                server_url: jupyterServerUrl,
+                                base_subpath: baseUrl,
+                                frontend: "notebook"
+                            });
+                        } else if (msgData.type === 'show') {
+
+                        }
+                    });
+                });
+        };
+
+        Jupyter.notebook.events.on('kernel_ready.Kernel', register_comm)
+    }
+
+    return {
+        load_ipython_extension: load_ipython_extension
+    };
+});