Add types to Swell route api

src/routes/api/swell.ts

@@ -1,3 +1,4 @@
+import type { RequestEvent, RequestHandlerOutput } from '@sveltejs/kit'
 import {
     getProducts,
     getProduct,
@@ -10,7 +11,7 @@ import {
 
 
 // Block GET requests
-export async function get ({ url, body }) {
+export async function get({}: RequestEvent): Promise<RequestHandlerOutput> {
     return {
         status: 403,
         body: 'nope!'
@@ -21,7 +22,7 @@ export async function get ({ url, body }) {
 /**
  * POST request
  */
-export async function post ({ request, params }) {
+export async function post ({ request }: RequestEvent): Promise<RequestHandlerOutput> {
     try {
         const body = await request.json()
         const { action, cartId, productId } = body