feat: add attribute at search (#1676)

Author: mdubus

src/types/types.ts

@@ -128,6 +128,7 @@ export type SearchParams = Query &
     rankingScoreThreshold?: number;
     attributesToSearchOn?: string[] | null;
     hybrid?: HybridSearch;
+    distinct?: string;
   };
 
 // Search parameters for searches made with the GET method
@@ -148,6 +149,7 @@ export type SearchRequestGET = Pagination &
     hybridEmbedder?: string;
     hybridSemanticRatio?: number;
     rankingScoreThreshold?: number;
+    distinct?: string;
   };
 
 export type MultiSearchQuery = SearchParams & { indexUid: string };

tests/get_search.test.ts

@@ -511,6 +511,15 @@ describe.each([
     expect(response2.hits.length).toBeLessThanOrEqual(0);
   });
 
+  test(`${permission} key: search with distinct`, async () => {
+    const client = await getClient(permission);
+    const response = await client
+      .index(index.uid)
+      .search('', { distinct: 'genre' });
+
+    expect(response.hits.length).toEqual(4);
+  });
+
   test(`${permission} key: Try to search on deleted index and fail`, async () => {
     const client = await getClient(permission);
     const masterClient = await getClient('Master');

tests/search.test.ts

@@ -911,6 +911,15 @@ describe.each([
     expect(response).not.toHaveProperty('semanticHitCount');
   });
 
+  test(`${permission} key: search with distinct`, async () => {
+    const client = await getClient(permission);
+    const response = await client
+      .index(index.uid)
+      .search('', { distinct: 'genre' });
+
+    expect(response.hits.length).toEqual(4);
+  });
+
   test(`${permission} key: Try to search on deleted index and fail`, async () => {
     const client = await getClient(permission);
     const masterClient = await getClient('Master');