diff --git a/backend/sample.env b/backend/sample.env
index dc4a3948..b57730b8 100644
--- a/backend/sample.env
+++ b/backend/sample.env
@@ -1,4 +1,6 @@
 export MOONSTREAM_CORS_ALLOWED_ORIGINS="http://localhost:3000,https://moonstream.to,https://www.moonstream.to"
-export MOONSTREAM_OPENAPI_LIST="users,subscriptions"
+export MOONSTREAM_OPENAPI_LIST="users,subscriptions,txinfo"
 export MOONSTREAM_APPLICATION_ID="<issued_bugout_application_id>"
 export MOONSTREAM_DATA_JOURNAL_ID="<bugout_journal_id_to_store_blockchain_data>"
+export MOONSTREAM_DB_URI="postgresql://<username>:<password>@<db_host>:<db_port>/<db_name>"
+export MOONSTREAM_POOL_SIZE=0