Request and RequestEvent
Access URL, headers, body, cookies, and locals through the RequestEvent object.
Request and RequestEvent is a free Sveltejs Academy lesson on CoddyKit. This is lesson 2 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Sveltejs Academy learning path, and your progress syncs across the web and the CoddyKit app. The Sveltejs Academy course includes 4 lessons in total.
The RequestEvent
Each handler in +server.js and load receives a RequestEvent.
Common Properties
Includes request, url, params, cookies, locals, fetch, platform.
Reading URL
Use url (a URL object) for path, query, and origin.
export function GET({ url }) {
const q = url.searchParams.get("q");
return new Response(`Searched: ${q}`);
}Reading Body
Use request.json(), request.text(), or request.formData() depending on content type.
Cookies
The cookies helper has get/set/delete methods.
cookies.set("session", id, { path: "/", httpOnly: true });Headers
Read with request.headers.get("...").
Locals
locals is for request-scoped state set in hooks (e.g. session).
export function GET({ locals }) { return json(locals.user); }Params
Dynamic route parameters arrive here.
export function GET({ params }) { return json({ id: params.id }); }Fetch With Auth
The provided fetch forwards credentials in SSR; use it for internal API calls.
Platform Object
platform exposes adapter-specific things like Cloudflare's env bindings.
Type Safety
SvelteKit generates RequestEvent types per route in $types.
Quick Check
How do you read a POST JSON body?
Recap
RequestEvent holds url, request, params, cookies, locals, fetch for your handlers.
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Frequently Asked Questions
Is the “Request and RequestEvent” lesson free?
Yes — the full text of “Request and RequestEvent” is free to read here on the web. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Sveltejs Academy course, upgrade to CoddyKit PRO. The Sveltejs Academy course includes 4 lessons in total.
What will I learn in “Request and RequestEvent”?
Access URL, headers, body, cookies, and locals through the RequestEvent object. You practise Sveltejs Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Sveltejs Academy?
No prior experience is required. Sveltejs Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 2 of 4.
How long does the “Request and RequestEvent” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Sveltejs Academy lesson?
Yes. Every Sveltejs Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- +server.js: GET POST PUT DELETE
- Request and RequestEvent
- Returning JSON Responses
- Streaming with ReadableStream