Measure execution time

src/lib/index.ts

@@ -1,6 +1,7 @@
 // place files you want to import through the `$lib` alias in this folder.
 import path from 'path';
 import bunyan from 'bunyan';
+import type { MaybePromise } from '@sveltejs/kit';
 
 export const log = bunyan.createLogger({
 	name: 'fotochallenge',
@@ -29,3 +30,13 @@ if (!('STORAGE_PATH' in process.env)) {
 export const storagePath: string = process.env.STORAGE_PATH ?? defaultPath;
 
 export default safePath;
+
+export async function timedExecution<T>(
+	fn: () => MaybePromise<T>
+): Promise<{ executionTime: number; result: T }> {
+	const start = process.hrtime();
+	const result = await fn();
+	const end = process.hrtime(start);
+	const executionTime = (end[0] * 1e6 + end[1]) / 1e6;
+	return { executionTime, result };
+}