From eb81a5fdfbadc53e7f779840b7be82cfdcc41c0f Mon Sep 17 00:00:00 2001
From: Oliver Sand <oliver.sand@sda-se.com>
Date: Mon, 16 Aug 2021 09:30:32 +0200
Subject: [PATCH] Implement `offset` and `limit` based paging in search API

Signed-off-by: Oliver Sand <oliver.sand@sda-se.com>
---
 packages/search-common/src/types.ts          |  4 +++-
 plugins/search-backend/src/service/router.ts | 12 +++++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/packages/search-common/src/types.ts b/packages/search-common/src/types.ts
index 2a4447efac..0bd12fbd42 100644
--- a/packages/search-common/src/types.ts
+++ b/packages/search-common/src/types.ts
@@ -19,7 +19,8 @@ export interface SearchQuery {
   term: string;
   filters?: JsonObject;
   types?: string[];
-  pageCursor: string;
+  offset?: number;
+  limit?: number;
 }
 
 export interface SearchResult {
@@ -29,6 +30,7 @@ export interface SearchResult {
 
 export interface SearchResultSet {
   results: SearchResult[];
+  totalCount: number;
 }
 
 /**
diff --git a/plugins/search-backend/src/service/router.ts b/plugins/search-backend/src/service/router.ts
index 3a0a43522e..5a87fb1734 100644
--- a/plugins/search-backend/src/service/router.ts
+++ b/plugins/search-backend/src/service/router.ts
@@ -36,15 +36,21 @@ export async function createRouter({
       req: express.Request<any, unknown, unknown, SearchQuery>,
       res: express.Response<SearchResultSet>,
     ) => {
-      const { term, filters = {}, pageCursor = '' } = req.query;
+      const { term, filters = {}, types, offset, limit } = req.query;
       logger.info(
         `Search request received: term="${term}", filters=${JSON.stringify(
           filters,
-        )}, ${pageCursor}`,
+        )}, offset=${offset ?? ''}, limit=${limit ?? ''}`,
       );
 
       try {
-        const results = await engine?.query(req.query);
+        const results = await engine?.query({
+          term,
+          types,
+          filters,
+          offset: offset ? Number(offset) : undefined,
+          limit: limit ? Number(limit) : undefined,
+        });
         res.send(results);
       } catch (err) {
         throw new Error(