fix redis sync

lib/Redis.ts

@@ -59,8 +59,9 @@ export class Redis {
       log('redis is inactive, skipping');
       return;
     }
-    const valid_for = (key.valid_until - (new Date)
-      .getTime ()) / 1000;
+    const valid_for = Math.floor(
+      (key.valid_until - new Date().getTime()) / 1000
+    );
     log('key is valid for %d seconds', valid_for);
     await this._redis.setex(key.index, valid_for, JSON.stringify(key));
     log('saved key');
@@ -83,4 +84,4 @@ export class Redis {
   }
 }
 
-export const redis = new Redis;
+export const redis = new Redis();

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@sapphirecode/auth-server-helper",
-  "version": "3.3.2",
+  "version": "3.3.3",
   "main": "dist/lib/index.js",
   "author": {
     "name": "Timo Hocker",