Fix APIRoute type (#3344)

* Fix APIRoute type

* Adds a changeset

* Update usage of the two API route signatures

Author: matthewp

.changeset/curly-bees-collect.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fix for APIRoute type

packages/astro/src/@types/astro.ts

@@ -883,18 +883,10 @@ export interface EndpointOutput<Output extends Body = Body> {
 	body: Output;
 }
 
-interface APIRoute {
-	(context: APIContext): EndpointOutput | Response;
-
-	/**
-	 * @deprecated
-	 * Use { context: APIRouteContext } object instead.
-	 */
-	(params: Params, request: Request): EndpointOutput | Response;
-}
+export type APIRoute = (context: APIContext) => EndpointOutput | Response;
 
 export interface EndpointHandler {
-	[method: string]: APIRoute;
+	[method: string]: APIRoute | ((params: Params, request: Request) => EndpointOutput | Response);
 }
 
 export interface AstroRenderer {

packages/astro/src/runtime/server/index.ts

@@ -517,7 +517,7 @@ Update your code to remove this warning.`);
 		},
 	}) as APIContext & Params;
 
-	return await handler.call(mod, proxy, request);
+	return handler.call(mod, proxy, request);
 }
 
 async function replaceHeadInjection(result: SSRResult, html: string): Promise<string> {