docs(samples): create connection sample for MySQL instance (#147)

* setup for cloudsql connection sample

* fleshed out sample

* complete sample

* changing region tag pattern

* adding new environment variables

* adding missing env variable

* fixing fixture with correct env variable

* refactor

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* refactor test imports

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* kokoro lint errors

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* changing fixture use

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* refactoring variables

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* fixing imports

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* changing fixture syntax

* fixing import

* fixing typecasting

* updating fixture usage

* changing fixtures

* refactor fixtures

Co-authored-by: Anthonios Partheniou <[email protected]>
Co-authored-by: meredithslota <[email protected]>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: 4 people

bigquery-connection/snippets/conftest.py

@@ -19,15 +19,35 @@
 
 
 @pytest.fixture(scope="session")
-def project_id() -> str:
-    return os.environ["GOOGLE_CLOUD_PROJECT"]
+def connection_client() -> connection_service.ConnectionServiceClient:
+    return connection_service.ConnectionServiceClient()
 
 
 @pytest.fixture(scope="session")
-def connection_client() -> connection_service.ConnectionServiceClient:
-    return connection_service.ConnectionServiceClient()
+def project_id() -> str:
+    return os.environ["GOOGLE_CLOUD_PROJECT"]
 
 
 @pytest.fixture(scope="session")
 def location() -> str:
     return "US"
+
+
+@pytest.fixture(scope="session")
+def database() -> str:
+    return os.environ["MYSQL_DATABASE"]
+
+
+@pytest.fixture(scope="session")
+def cloud_sql_conn_name() -> str:
+    return os.environ["MYSQL_INSTANCE"]
+
+
+@pytest.fixture(scope="session")
+def mysql_username() -> str:
+    return os.environ["MYSQL_USER"]
+
+
+@pytest.fixture(scope="session")
+def mysql_password() -> str:
+    return os.environ["MYSQL_PASSWORD"]

bigquery-connection/snippets/create_mysql_connection.py

@@ -0,0 +1,64 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START bigqueryconnection_connection_create]
+from google.cloud import bigquery_connection_v1 as bq_connection
+
+"""This sample shows how to create a BigQuery connection with a Cloud SQL for MySQL database"""
+
+
+def main() -> None:
+    # TODO(developer): Set all variables for your Cloud SQL for MySQL connection.
+    project_id = "your-project-id"  # set project_id
+    location = "US"  # set location
+    # See: https://cloud.google.com/bigquery/docs/locations for a list of
+    # available locations.
+    database = "my-database"  # set database name
+    username = "my-username"  # set database username
+    password = "my-password"  # set database password
+    cloud_sql_conn_name = ""  # set the name of your connection
+
+    cloud_sql_credential = bq_connection.CloudSqlCredential(
+        {
+            "username": username,
+            "password": password,
+        }
+    )
+    cloud_sql_properties = bq_connection.CloudSqlProperties(
+        {
+            "type_": bq_connection.CloudSqlProperties.DatabaseType.MYSQL,
+            "database": database,
+            "instance_id": cloud_sql_conn_name,
+            "credential": cloud_sql_credential,
+        }
+    )
+    create_mysql_connection(project_id, location, cloud_sql_properties)
+
+
+def create_mysql_connection(
+    project_id: str,
+    location: str,
+    cloud_sql_properties: bq_connection.CloudSqlProperties,
+) -> None:
+    connection = bq_connection.types.Connection({"cloud_sql": cloud_sql_properties})
+    client = bq_connection.ConnectionServiceClient()
+    parent = client.common_location_path(project_id, location)
+    request = bq_connection.CreateConnectionRequest(
+        {"parent": parent, "connection": connection}
+    )
+    response = client.create_connection(request)
+    print(f"Created connection successfully: {response.name}")
+
+
+# [END bigqueryconnection_connection_create]

bigquery-connection/snippets/create_mysql_connection_test.py

@@ -0,0 +1,90 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import google.api_core.exceptions
+from google.cloud import bigquery_connection_v1 as bq_connection
+from google.cloud.bigquery_connection_v1.services import connection_service
+import pytest
+import test_utils.prefixer
+
+from . import create_mysql_connection
+
+connection_prefixer = test_utils.prefixer.Prefixer("py-bq-r", "snippets", separator="-")
+
+
+@pytest.fixture(scope="session")
+def location_path(
+    connection_client: connection_service.ConnectionServiceClient(),
+    project_id: str,
+    location: str,
+) -> str:
+    return connection_client.common_location_path(project_id, location)
+
+
+@pytest.fixture(scope="module", autouse=True)
+def cleanup_connection(
+    connection_client: connection_service.ConnectionServiceClient, location_path: str
+) -> None:
+    for connection in connection_client.list_connections(parent=location_path):
+        connection_id = connection.name.split("/")[-1]
+        if connection_prefixer.should_cleanup(connection_id):
+            connection_client.delete_connection(name=connection.name)
+
+
+@pytest.fixture(scope="session")
+def connection_id(
+    connection_client: connection_service.ConnectionServiceClient,
+    project_id: str,
+    location: str,
+) -> str:
+    id_ = connection_prefixer.create_prefix()
+    yield id_
+
+    connection_name = connection_client.connection_path(project_id, location, id_)
+    try:
+        connection_client.delete_connection(name=connection_name)
+    except google.api_core.exceptions.NotFound:
+        pass
+
+
+def test_create_mysql_connection(
+    capsys: pytest.CaptureFixture,
+    mysql_username: str,
+    mysql_password: str,
+    database: str,
+    cloud_sql_conn_name: str,
+    project_id: str,
+    location: str,
+) -> None:
+    cloud_sql_credential = bq_connection.CloudSqlCredential(
+        {
+            "username": mysql_username,
+            "password": mysql_password,
+        }
+    )
+    cloud_sql_properties = bq_connection.CloudSqlProperties(
+        {
+            "type_": bq_connection.CloudSqlProperties.DatabaseType.MYSQL,
+            "database": database,
+            "instance_id": cloud_sql_conn_name,
+            "credential": cloud_sql_credential,
+        }
+    )
+    create_mysql_connection.create_mysql_connection(
+        project_id=project_id,
+        location=location,
+        cloud_sql_properties=cloud_sql_properties,
+    )
+    out, _ = capsys.readouterr()
+    assert "Created connection successfully:" in out