Function fetch

packages/player/tests/perf/server.ts:148–185

(req)

  const server = Bun.serve({
    port: options.port ?? 0,
    async fetch(req) {
      const url = new URL(req.url);
      const path = url.pathname;

      if (path === "/" || path === "/host.html") {
        const fixture = url.searchParams.get("fixture") || "gsap-heavy";
        const width = Number(url.searchParams.get("width") || "1920");
        const height = Number(url.searchParams.get("height") || "1080");
        const html = buildHostHtml(fixture, width, height);
        return applyCacheHeaders(
          new Response(html, { headers: { "Content-Type": "text/html; charset=utf-8" } }),
          noCache,
        );
      }

      if (path === "/player/hyperframes-player.global.js") {
        return applyCacheHeaders(await readBunFile(PATHS.player), noCache);
      }

      if (path === "/vendor/hyperframe.runtime.iife.js") {
        return applyCacheHeaders(await readBunFile(PATHS.runtime), noCache);
      }

      if (path === "/vendor/gsap.min.js") {
        return applyCacheHeaders(await readBunFile(PATHS.gsap), noCache);
      }

      if (path.startsWith("/fixtures/")) {
        const rel = path.replace(/^\/fixtures\//, "");
        const filePath = join(PATHS.fixturesDir, rel);
        if (!filePath.startsWith(PATHS.fixturesDir)) {
          return new Response("Forbidden", { status: 403 });
        }
        return applyCacheHeaders(await readBunFile(filePath), noCache);
      }

      return new Response("Not found", { status: 404 });
    },
  });

  // server.port is `number | undefined` in Bun's types (undefined only for unix-socket