add case studies endpoint

src/app/(static)/case-studies/route.ts

@@ -0,0 +1,18 @@
+// TODO: define how to show the available filters for this entity: show enums, retrieve from data, smart filtering...
+//       i.e, location is an available filter but the prop is defined as a string as it is not clear which the available values are.
+
+import { NextRequest, NextResponse } from 'next/server';
+
+import { CaseStudyService } from '@/lib/case-studies.service';
+
+import { CASE_STUDIES } from '@/data/case-studies';
+
+export async function GET(request: NextRequest) {
+  const { searchParams } = request.nextUrl;
+
+  const { filters, paginationFilters } = CaseStudyService.extractFilters(searchParams);
+  const caseStudyService = new CaseStudyService(CASE_STUDIES, filters, paginationFilters);
+  const result = caseStudyService.searchCaseStudies();
+
+  return NextResponse.json(result);
+}

src/app/(static)/news/route.ts

@@ -7,6 +7,11 @@ import { NewsService } from '@/lib/news.service';
 import NEWS from '@/data/news';
 
 export async function GET(request: NextRequest) {
+  /**
+   * @note Following the underlying express engine's behavior, array query params must be sent as multiple query params with the same key.
+   *       For example, to send the categories ['1', '2'], the query params should be `?categories=1&categories=2`.
+   *       So we can properly parse the query params into an array using the native URLSearchParams API.
+   */
   const { searchParams } = request.nextUrl;
 
   const { filters, paginationFilters } = NewsService.extractFilters(searchParams);