Fixes dynamic API routes in SSR (#3006)

* Fixes dynamic API routes in SSR

* Adds a changeset

.changeset/three-donkeys-train.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fixes dynamic API routes in SSR

packages/astro/src/core/app/index.ts

@@ -119,7 +119,7 @@ export class App {
 
  async #callEndpoint(
  request: Request,
- _routeData: RouteData,
+ routeData: RouteData,
  mod: ComponentInstance
  ): Promise<Response> {
  const url = new URL(request.url);
@@ -129,6 +129,7 @@ export class App {
  origin: url.origin,
  pathname: url.pathname,
  request,
+ route: routeData,
  routeCache: this.#routeCache,
  ssr: true,
  });

packages/astro/test/fixtures/ssr-dynamic/src/pages/api/products/[id].js

@@ -0,0 +1,6 @@
+
+export function get(params) {
+ return {
+ body: JSON.stringify(params)
+ };
+}

packages/astro/test/ssr-dynamic.test.js

@@ -27,6 +27,14 @@ describe('Dynamic pages in SSR', () => {
  return html;
  }
 
+ async function fetchJSON(path) {
+ const app = await fixture.loadTestAdapterApp();
+ const request = new Request('http:https://example.com' + path);
+ const response = await app.render(request);
+ const json = await response.json();
+ return json;
+ }
+
  it('Do not have to implement getStaticPaths', async () => {
  const html = await fetchHTML('/123');
  const $ = cheerioLoad(html);
@@ -38,4 +46,9 @@ describe('Dynamic pages in SSR', () => {
  const $ = cheerioLoad(html);
  expect($('link').length).to.equal(1);
  });
+
+ it('Dynamic API routes work', async () => {
+ const json = await fetchJSON('/api/products/33');
+ expect(json.id).to.equal('33');
+ });
 });