grafana/docs/sources/developers/plugins/cross-plugin-linking.md

title	description
Work with cross-plugin links	Learn how to add plugin links to a Grafana app plugin

Work with cross-plugin links

With the Plugins extension API, app plugins can register extension points of their own to display other plugins links. This is called cross-plugin linking, and you can use it to create more immersive user experiences with installed plugins.

Available extension points within plugins

An extension point is a location in another plugin's UI where your plugin can insert links. All extension point IDs within plugins should follow the naming convention plugins/<plugin-id>/<extension-point-id>.

How to create an extension point within a plugin

Use the getPluginExtensions method in @grafana/runtime to create an extension point within your plugin. An extension point is a way to specify where in the plugin UI other plugins links are rendered.

{{% admonition type="note" %}} Creating an extension point in a plugin creates a public interface for other plugins to interact with. Changes to the extension point ID or its context could break any plugin that attempts to register a link inside your plugin. {{% /admonition %}}

The getPluginExtensions method takes an object consisting of the extensionPointId, which must begin plugin/<pluginId>, and any contextual information that you want to provide. The getPluginExtensions method returns a list of extensionLinks that your program can loop over:

import { getPluginExtensions } from '@grafana/runtime';
import { isPluginExtensionLink } from '@grafana/data';
import { LinkButton } from '@grafana/ui';

function AppExtensionPointExample() {
  const { extensions } = getPluginExtensions({
    extensionPointId: 'plugin/another-app-plugin/menu',
    context: {
      pluginId: 'another-app-plugin',
    },
  });

  if (extensions.length === 0) {
    return null;
  }

  return (
    <div>
      {extensions.map((extension) => {
        if (isPluginExtensionLink(extension)) {
          return (
            <LinkButton href={extension.path} title={extension.description} key={extension.key}>
              {extension.title}
            </LinkButton>
          );
        }

        return null;
      })}
    </div>
  );
}

The preceding example shows a component that renders <LinkButton /> components for all link extensions that other plugins registered for the plugin/another-app-plugin/menu extension point ID. The context is passed as the second parameter to getPluginExtensions, which uses Object.freeze to make the context immutable before passing it to other plugins.

Insert links into another plugin

Create links for other plugins in the same way you [extend the Grafana application UI]({{< relref "./extend-the-grafana-ui-with-links" >}}) with a link. Don't specify a grafana/... extension point. Instead, specify the plugin extension point plugin/<pluginId>/<extensionPointId>.

Given the preceding example, use a plugin link such as the following:

new AppPlugin().configureExtensionLink({
  title: 'Go to basic app',
  description: 'Will navigate the user to the basic app',
  extensionPointId: 'plugin/another-app-plugin/menu',
  path: '/a/myorg-basic-app/one',
});