chore: add gmail samples

samples/gmail/labels.js

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+// Copyright 2018, 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
+//
+//    http://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 { google } = require('googleapis');
+const sampleClient = require('../sampleclient');
+
+const gmail = google.gmail({
+  version: 'v1',
+  auth: sampleClient.oAuth2Client
+});
+
+function runSample (action, messageId, labelId, callback) {
+  if (action === 'add') {
+    gmail.users.messages.modify({
+      userId: 'me',
+      id: messageId,
+      resource: {
+        'addLabelIds': [labelId]
+      }
+    }, (err, res) => {
+      if (err) {
+        throw err;
+      }
+      console.log(res.data);
+      callback(res.data);
+    });
+  } else if (action === 'remove') {
+    gmail.users.messages.modify({
+      userId: 'me',
+      id: messageId,
+      resource: {
+        'removeLabelIds': [labelId]
+      }
+    }, (err, res) => {
+      if (err) {
+        throw err;
+      }
+      console.log(res.data);
+      callback(res.data);
+    });
+  }
+}
+
+const scopes = ['https://www.googleapis.com/auth/gmail.modify'];
+
+if (module === require.main) {
+  sampleClient.authenticate(scopes, err => {
+    if (err) {
+      throw err;
+    }
+    if (process.argv.length !== 5) {
+      showUsage();
+    }
+    const [action, messageId, labelId] = process.argv.slice(2);
+    console.log(`action: ${action}`);
+    console.log(`messageId: ${messageId}`);
+    console.log(`labelId: ${labelId}`);
+    runSample(action, messageId, labelId, () => { /* add complete */ });
+  });
+}
+
+function showUsage () {
+  console.info('USAGE: node labels.js <add|remove> <messageId> <labelId>');
+  process.exit();
+}
+
+module.exports = {
+  runSample,
+  client: sampleClient.oAuth2Client
+};

samples/gmail/list.js

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+// Copyright 2018, 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
+//
+//    http://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 {google} = require('googleapis');
+const sampleClient = require('../sampleclient');
+
+const gmail = google.gmail({
+  version: 'v1',
+  auth: sampleClient.oAuth2Client
+});
+
+function runSample (callback) {
+  gmail.users.messages.list({
+    userId: 'me'
+  }, (err, res) => {
+    if (err) {
+      throw err;
+    }
+    console.log(res.data);
+    callback(res.data);
+  });
+}
+
+const scopes = ['https://www.googleapis.com/auth/gmail.readonly'];
+
+if (module === require.main) {
+  sampleClient.authenticate(scopes, err => {
+    if (err) {
+      throw err;
+    }
+    runSample(() => { /* sample complete */ });
+  });
+}
+
+module.exports = {
+  runSample,
+  client: sampleClient.oAuth2Client
+};

test/samples/test.samples.gmail.ts

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+// Copyright 2018, 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
+//
+//    http://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 * as assert from 'assert';
+import * as fs from 'fs';
+import * as nock from 'nock';
+import * as os from 'os';
+import * as path from 'path';
+
+import {Utils} from './../utils';
+
+nock.disableNetConnect();
+
+const samples = {
+  list: require('../../../samples/gmail/list'),
+  labels: require('../../../samples/gmail/labels')
+};
+
+for (const p in samples) {
+  if (samples[p]) {
+    samples[p].client.credentials = {access_token: 'not-a-token'};
+  }
+}
+
+describe('gmail samples', () => {
+  afterEach(() => {
+    nock.cleanAll();
+  });
+
+  it('should list emails', done => {
+    const scope =
+        nock(Utils.baseUrl).get(`/gmail/v1/users/me/messages`).reply(200, {
+          yes: true
+        });
+    samples.list.runSample(data => {
+      assert(data);
+      scope.done();
+      done();
+    });
+  });
+
+  it('should add a label', done => {
+    const messageId = '12345';
+    const labelId = 'abcde';
+    const scope = nock(Utils.baseUrl)
+                      .post(`/gmail/v1/users/me/messages/${messageId}/modify`)
+                      .reply(200, {yes: true});
+    samples.labels.runSample('add', messageId, labelId, data => {
+      assert(data);
+      scope.done();
+      done();
+    });
+  });
+});