Add annotation support

Author: marcusolsson

src/datasource.ts

@@ -88,6 +88,11 @@ export class JsonDataSource extends DataSourceApi<JsonApiQuery, JsonApiDataSourc
     return frame.fields[0].values.toArray().map((_) => ({ text: _ }));
   }
 
+  /**
+   * This line adds support for annotation queries in >=7.2.
+   */
+  annotations = {};
+
   /**
    * Checks whether we can connect to the API.
    */

src/plugin.json

@@ -5,6 +5,7 @@
   "id": "marcusolsson-json-datasource",
   "metrics": true,
   "logs": true,
+  "annotations": true,
   "info": {
     "description": "A data source plugin for loading JSON APIs into Grafana.",
     "author": {