chore: move some utils from blink to serve

feathers-studio · Jan 3, 2025 · 8c53390 · 8c53390
1 parent 0dc65a1
commit 8c53390
Showing 1 changed file with 30 additions and 0 deletions.
diff --git a/packages/serve/src/utils.ts b/packages/serve/src/utils.ts
@@ -0,0 +1,30 @@
+import { stat } from "node:fs/promises";
+
+export const days = (n: number) => n * 60 * 60 * 24;
+export const hours = (n: number) => n * 60 * 60;
+export const minutes = (n: number) => n * 60;
+export const seconds = (n: number) => n;
+
+export async function generateETagFromFile(filePath: string): Promise<string> {
+	const stats = await stat(filePath);
+	const mtime = stats.mtime.getTime().toString();
+	const size = stats.size.toString();
+	const rawETag = `${mtime}-${size}`;
+
+	const hashBuffer = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(rawETag));
+	const hashArray = new Uint8Array(hashBuffer);
+	let hashHex = "";
+	for (let i = 0; i < hashArray.length; i++) {
+		hashHex += hashArray[i].toString(16).padStart(2, "0");
+	}
+	return `"${hashHex}"`;
+}
+
+export const redirect = (url: string, status: 301 | 302 = 302, headers: Record<string, string> = {}) =>
+	new Response(null, { status, headers: { Location: url, ...headers } });
+
+export const json = (body: any, status = 200, headers: Record<string, string> = {}) =>
+	new Response(JSON.stringify(body), { status, headers: { "Content-Type": "application/json", ...headers } });
+
+export const html = (content: string, status = 200, headers: Record<string, string> = {}) =>
+	new Response("<!DOCTYPE html>" + content, { status, headers: { "Content-Type": "text/html", ...headers } });