Storage: Add client_options to constructors for manual clients.

storage/google/cloud/storage/_http.py

@@ -29,15 +29,14 @@ class Connection(_http.JSONConnection):
     :param client_info: (Optional) instance used to generate user agent.
     """
 
-    def __init__(self, client, client_info=None):
-        super(Connection, self).__init__(client, client_info)
+    DEFAULT_API_ENDPOINT = _http.API_BASE_URL
 
+    def __init__(self, client, client_info=None, api_endpoint=DEFAULT_API_ENDPOINT):
+        super(Connection, self).__init__(client, client_info)
+        self.API_BASE_URL = api_endpoint
         self._client_info.gapic_version = __version__
         self._client_info.client_library_version = __version__
 
-    API_BASE_URL = _http.API_BASE_URL
-    """The base of the API call URL."""
-
     API_VERSION = "v1"
     """The version of the API, used in building the API call's URL."""
 

storage/google/cloud/storage/client.py

@@ -14,6 +14,8 @@
 
 """Client for interacting with the Google Cloud Storage API."""
 
+import google.api_core.client_options
+
 from six.moves.urllib.parse import urlsplit
 
 from google.auth.credentials import AnonymousCredentials
@@ -60,6 +62,9 @@ class Client(ClientWithProject):
         requests. If ``None``, then default info will be used. Generally,
         you only need to set this if you're developing your own library
         or partner tool.
+    :type client_options: :class:`~google.api_core.client_options.ClientOptions` or :class:`dict`
+    :param client_options: (Optional) Client options used to set user options on the client.
+        API Endpoint should be set through client_options.
     """
 
     SCOPE = (
@@ -69,7 +74,14 @@ class Client(ClientWithProject):
     )
     """The scopes required for authenticating as a Cloud Storage consumer."""
 
-    def __init__(self, project=_marker, credentials=None, _http=None, client_info=None):
+    def __init__(
+        self,
+        project=_marker,
+        credentials=None,
+        _http=None,
+        client_info=None,
+        client_options=None,
+    ):
         self._base_connection = None
         if project is None:
             no_project = True
@@ -81,9 +93,20 @@ def __init__(self, project=_marker, credentials=None, _http=None, client_info=No
         super(Client, self).__init__(
             project=project, credentials=credentials, _http=_http
         )
+
+        kw_args = {"client_info": client_info}
+        if client_options:
+            if type(client_options) == dict:
+                client_options = google.api_core.client_options.from_dict(
+                    client_options
+                )
+            if client_options.api_endpoint:
+                api_endpoint = client_options.api_endpoint
+                kw_args["api_endpoint"] = api_endpoint
+
         if no_project:
             self.project = None
-        self._connection = Connection(self, client_info=client_info)
+        self._connection = Connection(self, **kw_args)
         self._batch_stack = _LocalStack()
 
     @classmethod

storage/setup.py

@@ -30,7 +30,7 @@
 release_status = "Development Status :: 5 - Production/Stable"
 dependencies = [
     "google-auth >= 1.2.0",
-    "google-cloud-core >= 1.0.0, < 2.0dev",
+    "google-cloud-core >= 1.0.3, < 2.0dev",
     "google-resumable-media >= 0.3.1",
 ]
 extras = {}

storage/tests/unit/test__http.py

@@ -56,7 +56,13 @@ def test_extra_headers(self):
 
     def test_build_api_url_no_extra_query_params(self):
         conn = self._make_one(object())
-        URI = "/".join([conn.API_BASE_URL, "storage", conn.API_VERSION, "foo"])
+        URI = "/".join([conn.DEFAULT_API_ENDPOINT, "storage", conn.API_VERSION, "foo"])
+        self.assertEqual(conn.build_api_url("/foo"), URI)
+
+    def test_build_api_url_w_custom_endpoint(self):
+        custom_endpoint = "https://foo-googleapis.com"
+        conn = self._make_one(object(), api_endpoint=custom_endpoint)
+        URI = "/".join([custom_endpoint, "storage", conn.API_VERSION, "foo"])
         self.assertEqual(conn.build_api_url("/foo"), URI)
 
     def test_build_api_url_w_extra_query_params(self):

storage/tests/unit/test_client.py

@@ -86,6 +86,53 @@ def test_ctor_connection_type(self):
         self.assertIsNone(client.current_batch)
         self.assertEqual(list(client._batch_stack), [])
         self.assertIsInstance(client._connection._client_info, ClientInfo)
+        self.assertEqual(
+            client._connection.API_BASE_URL, Connection.DEFAULT_API_ENDPOINT
+        )
+
+    def test_ctor_w_empty_client_options(self):
+        from google.api_core.client_options import ClientOptions
+
+        PROJECT = "PROJECT"
+        credentials = _make_credentials()
+        client_options = ClientOptions()
+
+        client = self._make_one(
+            project=PROJECT, credentials=credentials, client_options=client_options
+        )
+
+        self.assertEqual(
+            client._connection.API_BASE_URL, client._connection.DEFAULT_API_ENDPOINT
+        )
+
+    def test_ctor_w_client_options_dict(self):
+
+        PROJECT = "PROJECT"
+        credentials = _make_credentials()
+        client_options = {"api_endpoint": "https://www.foo-googleapis.com"}
+
+        client = self._make_one(
+            project=PROJECT, credentials=credentials, client_options=client_options
+        )
+
+        self.assertEqual(
+            client._connection.API_BASE_URL, "https://www.foo-googleapis.com"
+        )
+
+    def test_ctor_w_client_options_object(self):
+        from google.api_core.client_options import ClientOptions
+
+        PROJECT = "PROJECT"
+        credentials = _make_credentials()
+        client_options = ClientOptions(api_endpoint="https://www.foo-googleapis.com")
+
+        client = self._make_one(
+            project=PROJECT, credentials=credentials, client_options=client_options
+        )
+
+        self.assertEqual(
+            client._connection.API_BASE_URL, "https://www.foo-googleapis.com"
+        )
 
     def test_ctor_wo_project(self):
         from google.cloud.storage._http import Connection