Add a stub endpoint plugin

x-pack/plugins/endpoint/kibana.json

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+{
+  "id": "endpoint",
+  "version": "1.0.0",
+  "kibanaVersion": "kibana",
+  "configPath": ["x-pack", "endpoint"],
+  "server": true,
+  "ui": true
+}

x-pack/plugins/endpoint/public/applications/endpoint/index.tsx

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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import * as React from 'react';
+import ReactDOM from 'react-dom';
+import { AppMountContext, AppMountParameters } from 'kibana/public';
+
+/**
+ * This module will be loaded asynchronously to reduce the bundle size of your plugin's main bundle.
+ */
+export function renderApp(appMountContext: AppMountContext, { element }: AppMountParameters) {
+  appMountContext.core.http.get('/endpoint/hello-world');
+
+  ReactDOM.render(<AppRoot />, element);
+
+  return function() {
+    ReactDOM.unmountComponentAtNode(element);
+  };
+}
+
+const AppRoot = React.memo(function Root() {
+  return <h1>Welcome to Endpoint</h1>;
+});

x-pack/plugins/endpoint/public/index.ts

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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { PluginInitializer } from 'kibana/public';
+import { schema } from '@kbn/config-schema';
+import { EndpointPlugin } from './plugin';
+
+export const config = {
+  schema: schema.object({ enabled: schema.boolean({ defaultValue: false }) }),
+};
+
+export const plugin: PluginInitializer<{}, {}> = () => new EndpointPlugin();

x-pack/plugins/endpoint/public/plugin.ts

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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { Plugin, CoreSetup } from 'kibana/public';
+
+export class EndpointPlugin implements Plugin<{}, {}> {
+  public setup(core: CoreSetup) {
+    core.application.register({
+      id: 'endpoint',
+      title: 'Endpoint',
+      async mount(context, params) {
+        const { renderApp } = await import('./applications/endpoint');
+        return renderApp(context, params);
+      },
+    });
+    return {};
+  }
+
+  public start() {
+    return {};
+  }
+
+  public stop() {}
+}

x-pack/plugins/endpoint/server/index.ts

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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { schema } from '@kbn/config-schema';
+import { EndpointPlugin } from './plugin';
+
+export const config = {
+  schema: schema.object({ enabled: schema.boolean({ defaultValue: false }) }),
+};
+
+export function plugin() {
+  return new EndpointPlugin();
+}

x-pack/plugins/endpoint/server/plugin.ts

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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { Plugin, CoreSetup } from 'kibana/server';
+import { addRoutes } from './routes';
+
+export class EndpointPlugin implements Plugin {
+  public setup(core: CoreSetup) {
+    const router = core.http.createRouter();
+    addRoutes(router);
+  }
+
+  public start() {}
+  public stop() {}
+}

x-pack/plugins/endpoint/server/routes/index.ts

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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { IRouter, KibanaResponseFactory } from 'kibana/server';
+
+export function addRoutes(router: IRouter) {
+  router.get(
+    {
+      path: '/endpoint/hello-world',
+      validate: false,
+    },
+    greetingIndex
+  );
+}
+
+async function greetingIndex(...passedArgs: [unknown, unknown, KibanaResponseFactory]) {
+  const [, , response] = passedArgs;
+  return response.ok({
+    body: JSON.stringify({ hello: 'world' }),
+    headers: {
+      'Content-Type': 'application/json',
+    },
+  });
+}