Not crashing when not supplying push-data thingies

api/subscriptions.js

@@ -9,12 +9,24 @@ mongoose.connect("mongodb://localhost:27017/vinlottis", {
   useNewUrlParser: true
 });
 
-const config = require(path.join(__dirname + "/../config/env/push.config"));
+const config = require(path.join(__dirname + "/../config/env/push"));
 const Subscription = require(path.join(__dirname + "/../schemas/Subscription"));
 const lotteryConfig = require(path.join(
   __dirname + "/../config/env/lottery.config"
 ));
 
+router.use((req, res, next) => {
+  next();
+});
+
+if (!config.publicKey) {
+  console.error(
+    "You are missing the push-setup! Server will continue running even without this."
+  );
+  module.exports = router;
+  return;
+}
+
 const vapidKeys = {
   publicKey: config.publicKey,
   privateKey: config.privateKey
@@ -34,10 +46,6 @@ const sendNotification = (subscription, dataToSend = "") => {
   }
 };
 
-router.use((req, res, next) => {
-  next();
-});
-
 router.route("/save-subscription").post(async (req, res) => {
   const subscription = req.body;
   await saveToDatabase(subscription); //Method to save the subscription to Database