SNOW-2229745: Move oauth_type into client_environment (#2453)

Author: sfc-gh-pbulawa

DESCRIPTION.md

@@ -17,6 +17,7 @@ Source code is also available at: https://github.com/snowflakedb/snowflake-conne
   - Add `unsafe_skip_file_permissions_check` flag to skip file permissions check on cache and config.
   - Introduce snowflake_version property to the connection
   - Added basic json support for Interval types.
+  - Moved `OAUTH_TYPE` to `CLIENT_ENVIROMENT`.
 
 - v3.16.0(July 04,2025)
   - Bumped numpy dependency from <2.1.0 to <=2.2.4.

src/snowflake/connector/auth/_oauth_base.py

@@ -270,7 +270,9 @@ def update_body(self, body: dict[Any, Any]) -> None:
         """
         body["data"]["AUTHENTICATOR"] = OAUTH_AUTHENTICATOR
         body["data"]["TOKEN"] = self._access_token
-        body["data"]["OAUTH_TYPE"] = self._get_oauth_type_id()
+        if "CLIENT_ENVIRONMENT" not in body["data"]:
+            body["data"]["CLIENT_ENVIRONMENT"] = {}
+        body["data"]["CLIENT_ENVIRONMENT"]["OAUTH_TYPE"] = self._get_oauth_type_id()
 
     def _do_refresh_token(self, conn: SnowflakeConnection) -> None:
         """If a refresh token is available exchanges it with a new access token.

test/unit/test_auth_oauth_auth_code.py

@@ -39,7 +39,9 @@ def test_auth_oauth_auth_code_oauth_type(omit_oauth_urls_check):
     )
     body = {"data": {}}
     auth.update_body(body)
-    assert body["data"]["OAUTH_TYPE"] == "oauth_authorization_code"
+    assert (
+        body["data"]["CLIENT_ENVIRONMENT"]["OAUTH_TYPE"] == "oauth_authorization_code"
+    )
 
 
 @pytest.mark.parametrize("rtr_enabled", [True, False])

test/unit/test_oauth_token.py

@@ -551,7 +551,9 @@ def test_client_creds_oauth_type():
     )
     body = {"data": {}}
     auth.update_body(body)
-    assert body["data"]["OAUTH_TYPE"] == "oauth_client_credentials"
+    assert (
+        body["data"]["CLIENT_ENVIRONMENT"]["OAUTH_TYPE"] == "oauth_client_credentials"
+    )
 
 
 @pytest.mark.skipolddriver