apply tier filter to new fields endpoint

src/plugins/data_views/server/rest_api_routes/internal/fields.ts

@@ -15,9 +15,10 @@ import type {
   DataViewsServerPluginStartDependencies,
 } from '../../types';
 import type { FieldDescriptorRestResponse } from '../route_types';
-import { FIELDS_PATH as path } from '../../../common/constants';
+import { FIELDS_PATH as path, DATA_VIEWS_FIELDS_EXCLUDED_TIERS } from '../../../common/constants';
 import { parseFields, IBody, IQuery, querySchema, validate } from './fields_for';
 import { DEFAULT_FIELD_CACHE_FRESHNESS } from '../../constants';
+import { getIndexFilterDsl } from './utils';
 
 export function calculateHash(srcBuffer: Buffer) {
   const hash = createHash('sha1');
@@ -31,6 +32,9 @@ const handler: (isRollupsEnabled: () => boolean) => RequestHandler<{}, IQuery, I
     const uiSettings = core.uiSettings.client;
     const { asCurrentUser } = core.elasticsearch.client;
     const indexPatterns = new IndexPatternsFetcher(asCurrentUser, undefined, isRollupsEnabled());
+    const excludedTiers = await core.uiSettings.client.get<string>(
+      DATA_VIEWS_FIELDS_EXCLUDED_TIERS
+    );
     const {
       pattern,
       meta_fields: metaFields,
@@ -59,6 +63,7 @@ const handler: (isRollupsEnabled: () => boolean) => RequestHandler<{}, IQuery, I
           allow_no_indices: allowNoIndex || false,
           includeUnmapped,
         },
+        indexFilter: getIndexFilterDsl({ excludedTiers }),
         ...(parsedFields.length > 0 ? { fields: parsedFields } : {}),
       });