I am trying to connect Databricks Warehouse via Hashicorp Boundary Session

I have created host on Hashicorp Boundary for Databricks Warehouse Host and started a session to connect to it.

When I try the URL in DataGript to connect ti this data warehouse, I am getting ollowing error:

DBMS: SparkSQL (ver. 3.1.1)
Case sensitivity: plain=mixed, delimited=exact
Driver: DatabricksJDBC (ver. 02.06.36.1062, JDBC4.2)
[Databricks][JDBCDriver](500593) Communication link failure. Failed to connect to server. Reason: com.databricks.client.jdbc42.internal.apache.http.conn.HttpHostConnectException: Connect to 127.0.0.1:63771 [/127.0.0.1] failed: Connection refused.

Here is the URL I am trying to connect: jdbc:databricks://127.0.0.1:63771/default;transportMode=http;ssl=1;AuthMech=3;httpPath=/sql/1.0/warehouses/a1b2c3d4e5f6g7h8;