Add support for distinct attribute

.changeset/smart-llamas-draw.md

@@ -0,0 +1,5 @@
+---
+"@meilisearch/instant-meilisearch": patch
+---
+
+Add support for distinct attribute

.gitignore

@@ -124,3 +124,5 @@ data.ms
 .turbo
 
 .angular
+
+.idea

packages/instant-meilisearch/README.md

@@ -224,6 +224,7 @@ The following options can be overridden:
 [`showRankingScore`](https://www.meilisearch.com/docs/reference/api/search#ranking-score),
 [`attributesToSearchOn`](https://www.meilisearch.com/docs/reference/api/search#customize-attributes-to-search-on-at-search-time),
 [`hybrid`](https://www.meilisearch.com/docs/learn/experimental/vector_search)
+[`distinct`](https://www.meilisearch.com/docs/learn/relevancy/distinct_attribute)
 
 ```js
 instantMeiliSearch(

packages/instant-meilisearch/src/adapter/search-request-adapter/__tests__/search-params.test.ts

@@ -94,6 +94,19 @@ describe('Parameters adapter', () => {
 
     expect(searchParams.hybrid).toBe(hybridSearchConfig)
   })
+
+  test('distinct search configuration can be set via search parameters', () => {
+    const distinctSearchConfig = 'title'
+
+    const searchParams = adaptSearchParams({
+      ...DEFAULT_CONTEXT,
+      meiliSearchParams: {
+        distinct: distinctSearchConfig,
+      },
+    })
+
+    expect(searchParams.distinct).toBe(distinctSearchConfig)
+  })
 })
 
 describe('Geo filter adapter', () => {

packages/instant-meilisearch/src/adapter/search-request-adapter/search-params-adapter.ts

@@ -238,6 +238,12 @@ export function MeiliParamsCreator(searchContext: SearchContext) {
         meiliSearchParams.hybrid = value
       }
     },
+    addDistinct() {
+      const value = overrideParams?.distinct
+      if (value !== undefined) {
+        meiliSearchParams.distinct = value
+      }
+    },
   }
 }
 
@@ -270,6 +276,7 @@ export function adaptSearchParams(
   meilisearchParams.addShowRankingScore()
   meilisearchParams.addAttributesToSearchOn()
   meilisearchParams.addHybridSearch()
+  meilisearchParams.addDistinct()
 
   return meilisearchParams.getParams()
 }

packages/instant-meilisearch/src/types/types.ts

@@ -55,6 +55,7 @@ export type OverridableMeiliSearchSearchParameters = Pick<
   | 'showRankingScore'
   | 'attributesToSearchOn'
   | 'hybrid'
+  | 'distinct'
 >
 
 type BaseInstantMeiliSearchOptions = {