init: init prok

packages/server/src/lib/jwt.ts

@@ -0,0 +1,16 @@
+import jwt from "jsonwebtoken";
+
+const SECRET = process.env.JWT_SECRET || "dev-secret";
+const EXPIRES_IN = "7d";
+
+export function signToken(userId: string): string {
+  return jwt.sign({ sub: userId }, SECRET, { expiresIn: EXPIRES_IN });
+}
+
+export function verifyToken(token: string): { sub: string } | null {
+  try {
+    return jwt.verify(token, SECRET) as { sub: string };
+  } catch {
+    return null;
+  }
+}

packages/server/src/lib/qrcode.ts

@@ -0,0 +1,12 @@
+import QRCode from "qrcode";
+
+export async function generateQRCodeDataURL(
+  url: string,
+  options?: { width?: number }
+): Promise<string> {
+  return QRCode.toDataURL(url, {
+    width: options?.width ?? 300,
+    margin: 2,
+    color: { dark: "#1a1a2e", light: "#ffffff" },
+  });
+}