feat: added samples for api-endpoints (#259)

* Added samples for api-endpoints

* Fixed license and function name

* Fixed test case for setEndpoint and added file to linkinator until it lands

automl/beta/setEndpoint.js

@@ -0,0 +1,47 @@
+// Copyright 2019 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.
+
+'use strict';
+
+async function setEndpoint(projectId) {
+  // [START automl_set_endpoint]
+  const automl = require('@google-cloud/automl').v1beta1;
+
+  // You must first create a dataset, using the `eu` endpoint, before you can
+  // call other operations such as: list, get, import, delete, etc.
+  const clientOptions = {apiEndpoint: 'eu-automl.googleapis.com'};
+
+  // Instantiates a client
+  const client = new automl.AutoMlClient(clientOptions);
+
+  // A resource that represents Google Cloud Platform location.
+  const projectLocation = client.locationPath(projectId, 'eu');
+  // [END automl_set_endpoint]
+  console.log(projectLocation);
+
+  // Grabs the list of datasets in a given project location.
+  // Note: create a dataset in `eu` before calling `listDatasets`.
+  const responses = await client.listDatasets({parent: projectLocation});
+
+  // Prints out each dataset.
+  const datasets = responses[0];
+  datasets.forEach(dataset => {
+    console.log(dataset);
+  });
+}
+
+setEndpoint(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});

automl/test/setEndpoint.test.js

@@ -0,0 +1,29 @@
+// Copyright 2019 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.
+
+'use strict';
+
+const {assert} = require('chai');
+const cp = require('child_process');
+
+const projectId = process.env.GCLOUD_PROJECT;
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+describe('set endpoint for automl', () => {
+  it('should list all datasets in `eu`', async () => {
+    const stdout = execSync(`node beta/setEndpoint.js "${projectId}"`);
+    assert.match(stdout, /do_not_delete_eu/);
+  });
+});