make GOOGLE_APPLICATION_CREDENTIALS + GCLOUD_PROJECT optional

Author: Ran Hassid

lib/index.js

@@ -7,19 +7,15 @@ const namePrefix = 'parse-server';
 
 let emitter = new events.EventEmitter();
 
-if (!process.env.GOOGLE_APPLICATION_CREDENTIALS) {
-  throw 'set GOOGLE_APPLICATION_CREDENTIALS variable (see https://googlecloudplatform.github.io/google-cloud-node/#/docs/pubsub/0.8.0/guides/authentication)';
-}
+// if (!process.env.GOOGLE_APPLICATION_CREDENTIALS) {
+//   throw 'set GOOGLE_APPLICATION_CREDENTIALS variable (see https://googlecloudplatform.github.io/google-cloud-node/#/docs/pubsub/0.8.0/guides/authentication)';
+// }
+
+// if (!process.env.GCLOUD_PROJECT) {
+//   throw 'set GCLOUD_PROJECT variable (see https://googlecloudplatform.github.io/google-cloud-node/#/docs/pubsub/0.8.0/guides/authentication)';
+// }
 
-if (!process.env.GCLOUD_PROJECT) {
-  throw 'set GCLOUD_PROJECT variable (see https://googlecloudplatform.github.io/google-cloud-node/#/docs/pubsub/0.8.0/guides/authentication)';
-}
 
-/**
- * In order to use gcp pub/sub module we must provide 2 env. variables 
- * GCP_PROJECT_ID - the project id on GCP
- * GCP_KEYFILE_PATH - path where the google service account key is located 
- */
 const pubsubClient = PubSub();
 
 class Publisher {