allow passing /v2/ paths to globus api transfer (#1249)

Co-authored-by: Kurt McKee <contactme@kurtmckee.org>

Author: aaschaer

changelog.d/20260217_134541_aaschaer_transfer_api_v2.md

@@ -0,0 +1,3 @@
+### Bugfixes
+
+* `globus api transfer` no longer prepends `/v0.10/` to `/v2/` paths

src/globus_cli/commands/api.py

@@ -324,7 +324,9 @@ def _execute_service_command(
         if path.startswith("/"):
             path = path[1:]
         path = f"/v2/{path}"
-    if isinstance(client, globus_sdk.TransferClient) and not path.startswith("/v0.10/"):
+    if isinstance(client, globus_sdk.TransferClient) and not (
+        path.startswith(("/v0.10/", "/v2/"))
+    ):
         if path.startswith("/"):
             path = path[1:]
         path = f"/v0.10/{path}"

tests/functional/test_api.py

@@ -77,6 +77,20 @@ def test_api_command_get(run_line, service_name, add_gcs_login, is_error_respons
     assert result.output == '{"foo": "bar"}\n'
 
 
+def test_api_transfer_v2_command(run_line):
+    load_response(
+        RegisteredResponse(
+            service="transfer",
+            status=200,
+            path="/v2/foo",
+            json={"foo": "bar"},
+        )
+    )
+
+    result = run_line(["globus", "api", "transfer", "get", "/v2/foo"])
+    assert result.output == '{"foo": "bar"}\n'
+
+
 def test_api_groups_v2_path_stripping(run_line):
     load_response(
         RegisteredResponse(