Fixed partial handling and added cookies

routes/(apps)/students/api/example.ts

@@ -0,0 +1,22 @@
+import { Handlers } from "$fresh/server.ts";
+
+export const handler: Handlers = {
+  async POST(request, context) {
+    if (request.headers.get("content-type") != "application/json") {
+      return new Response(null, {
+        status: 400,
+      });
+    }
+
+    const responseBody = {
+      requestBody: await request.json(),
+      context,
+    };
+
+    return new Response(JSON.stringify(responseBody), {
+      headers: {
+        "content-type": "application/json",
+      },
+    });
+  },
+};