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send.js
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send.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 path = require('path');
const {google} = require('googleapis');
const {authenticate} = require('@google-cloud/local-auth');
const gmail = google.gmail('v1');
async function runSample() {
// Obtain user credentials to use for the request
const auth = await authenticate({
keyfilePath: path.join(__dirname, '../oauth2.keys.json'),
scopes: [
'https://mail.google.com/',
'https://www.googleapis.com/auth/gmail.modify',
'https://www.googleapis.com/auth/gmail.compose',
'https://www.googleapis.com/auth/gmail.send',
],
});
google.options({auth});
// You can use UTF-8 encoding for the subject using the method below.
// You can also just use a plain string if you don't need anything fancy.
const subject = '🤘 Hello 🤘';
const utf8Subject = `=?utf-8?B?${Buffer.from(subject).toString('base64')}?=`;
const messageParts = [
'From: Justin Beckwith <beckwith@google.com>',
'To: Justin Beckwith <beckwith@google.com>',
'Content-Type: text/html; charset=utf-8',
'MIME-Version: 1.0',
`Subject: ${utf8Subject}`,
'',
'This is a message just to say hello.',
'So... <b>Hello!</b> 🤘❤️😎',
];
const message = messageParts.join('\n');
// The body needs to be base64url encoded.
const encodedMessage = Buffer.from(message)
.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
const res = await gmail.users.messages.send({
userId: 'me',
requestBody: {
raw: encodedMessage,
},
});
console.log(res.data);
return res.data;
}
if (module === require.main) {
runSample().catch(console.error);
}
module.exports = runSample;