From cec3f92752eb52f85de0f7d943369f059d079fd6 Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Thu, 23 Dec 2021 11:52:54 -0500
Subject: [PATCH] Making expiration date optional on the JWT.

---
 lib/shc.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/shc.js b/lib/shc.js
index 82f5bbc..3339b7f 100644
--- a/lib/shc.js
+++ b/lib/shc.js
@@ -9,17 +9,19 @@ const URI_SCHEMA = 'shc';
  * I am not sure if I should build this by hand. 
  */
 export async function makeJWT(payload, monthsToExpire, issuer, notBeforeDate) {
-  let iss = new Date();
-  let exp = new Date(iss);
+  let today = new Date();
+  let exp = new Date(today);
   exp.setMonth(exp.getMonth()+monthsToExpire);
 
   let jwt = {
     iss: issuer,
-    iat: Math.round(iss.getTime()/1000),
-    exp: Math.round(exp.getTime()/1000),
     vc: payload
   };
 
+  if (monthsToExpire) {
+    jwt['exp'] = Math.round(exp.getTime()/1000)
+  }
+
   if (notBeforeDate)
     jwt['nbf'] = Math.round(notBeforeDate.getTime()/1000);