[INIT] Initial Project Structure

lib/services/token.service.ts

@@ -0,0 +1,15 @@
+import jwt, { Secret, SignOptions } from "jsonwebtoken";
+
+export function signToken(payload: object, signingKey: Secret, options: SignOptions = {}) {
+  return jwt.sign(payload, signingKey, {
+    ...{ algorithm: "RS256" },
+    ...options,
+  });
+}
+
+export function verifyToken(token: string, signingKey: Secret) {
+  return jwtVerify(token, signingKey) ?? undefined;
+}
+
+const jwtVerify = (token: string, key: Secret): any =>
+  jwt.verify(token, key, (err: any, decoded: any) => (!err && decoded) || null);