Initial commit

src/server/util/routewrap.ts

@@ -0,0 +1,47 @@
+import { Static, TSchema } from "@sinclair/typebox";
+import { Value } from "@sinclair/typebox/value";
+import { HTTPMethods } from "fastify"
+import { RouteOptions } from "fastify/types/route.js";
+
+type URLString = string;
+
+export type FirRouteInput<TPayloadSchema extends TSchema> = {
+	payload: Static<TPayloadSchema>,
+}
+
+export type FirRouteOptions<TIn extends TSchema = TSchema, TOut extends TSchema = TSchema> = {
+	method: HTTPMethods,
+	url: URLString,
+	payloadT: TIn,
+	responseT?: TOut,
+	handler: (input: FirRouteInput<TIn>) => Static<TOut> | Promise<Static<TOut>>,
+}
+
+export const route = <TIn extends TSchema, TOut extends TSchema>(routeOptions: FirRouteOptions<TIn, TOut>): RouteOptions => {
+	const {
+		method,
+		url,
+		payloadT,
+		handler,
+	} = routeOptions;
+
+	const augmentedHandler = (request: Parameters<RouteOptions["handler"]>[0]) => {
+		const {
+			body,
+			query,
+		} = request;
+		const payload = body ?? query;
+		if (Value.Check(payloadT, payload)) {
+			return handler({payload});
+		} else {
+			
+			throw new Error("Payload wrong shape.");
+		}
+	}
+
+	return {
+		method,
+		url,
+		handler: augmentedHandler,
+	}
+}