Add filters for custom search result sorting

astro.config.mjs

@@ -198,12 +198,7 @@ export default defineConfig({
           },
         }),
         starlightDocSearch({
-          appId: 'XBW1JU7CW5',
-          apiKey: '6b0341e2f50196d328d088dbb5cd6166',
-          indexName: 'localstack',
-          searchParameters: {
-            facets: ['lvl0'],
-          },
+          clientOptionsModule: './src/config/docsearch.ts',
         }),
       ],
       sidebar: [

src/config/docsearch.ts

@@ -0,0 +1,46 @@
+import type { DocSearchClientOptions } from '@astrojs/starlight-docsearch';
+
+export default {
+  appId: 'XBW1JU7CW5',
+  apiKey: '6b0341e2f50196d328d088dbb5cd6166',
+  indexName: 'localstack',
+  searchParameters: {
+    facets: ['lvl0'],
+  },
+  transformSearchClient(searchClient) {
+    return {
+      ...searchClient,
+      search(requests: any) {
+        // Get the current pathname at runtime
+        const pathname = typeof window !== 'undefined' ? window.location.pathname : '';
+
+        // Determine the boost filter based on pathname
+        let boostFilter: string | null = null;
+        if (pathname.startsWith('/aws/')) {
+          boostFilter = "hierarchy.lvl0:LocalStack for AWS";
+        } else if (pathname.startsWith('/snowflake/')) {
+          boostFilter = "hierarchy.lvl0:LocalStack for Snowflake";
+        }
+
+        if (!boostFilter) {
+          return searchClient.search(requests);
+        }
+
+        if (!requests || typeof requests !== 'object' || !Array.isArray(requests.requests)) {
+          return searchClient.search(requests);
+        }
+
+        const transformedRequests = {
+          ...requests,
+          requests: requests.requests.map((request: any) => ({
+            ...request,
+            optionalFilters: [boostFilter],
+            sumOrFiltersScores: true,
+          })),
+        };
+
+        return searchClient.search(transformedRequests);
+      },
+    };
+  },
+} satisfies DocSearchClientOptions;