feat(api): validate plex when settings are saved

server/api/plexapi.ts

@@ -0,0 +1,39 @@
+import NodePlexAPI from 'plex-api';
+import { getSettings } from '../lib/settings';
+
+class PlexAPI {
+  private plexClient: typeof NodePlexAPI;
+
+  constructor({ plexToken }: { plexToken?: string }) {
+    const settings = getSettings();
+
+    this.plexClient = new NodePlexAPI({
+      hostname: settings.plex.ip,
+      post: settings.plex.port,
+      token: plexToken,
+      authenticator: {
+        authenticate: (
+          _plexApi: typeof PlexAPI,
+          cb: (err?: string, token?: string) => void
+        ) => {
+          if (!plexToken) {
+            return cb('Plex Token not found!');
+          }
+          cb(undefined, plexToken);
+        },
+      },
+      options: {
+        identifier: settings.clientId,
+        product: 'Overseerr',
+        deviceName: 'Overseerr',
+        platform: 'Overseerr',
+      },
+    });
+  }
+
+  public async getStatus() {
+    return await this.plexClient.query('/');
+  }
+}
+
+export default PlexAPI;