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// Copyright 2017 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 {OAuth2Client} = require('google-auth-library');
const http = require('http');
const url = require('url');
const open = require('open');
const destroyer = require('server-destroy');
// Download your OAuth2 configuration from the Google
/**
* @example
* require('./oauth2.keys.json');
*/
const keys = {};
/**
* Start by acquiring a pre-authenticated oAuth2 client.
*/
async function main() {
const oAuth2Client = await getAuthenticatedClient();
// Make a simple request to the People API using our pre-authenticated client. The `request()` method
// takes an GaxiosOptions object. Visit https://github.com/JustinBeckwith/gaxios.
const url = 'https://people.googleapis.com/v1/people/me?personFields=names';
const res = await oAuth2Client.request({url});
console.log(res.data);
// After acquiring an access_token, you may want to check on the audience, expiration,
// or original scopes requested. You can do that with the `getTokenInfo` method.
const tokenInfo = await oAuth2Client.getTokenInfo(
oAuth2Client.credentials.access_token,
);
console.log(tokenInfo);
}
/**
* Create a new OAuth2Client, and go through the OAuth2 content
* workflow. Return the full client to the callback.
*/
function getAuthenticatedClient() {
return new Promise((resolve, reject) => {
// create an oAuth client to authorize the API call. Secrets are kept in a `keys.json` file,
// which should be downloaded from the Google Developers Console.
const oAuth2Client = new OAuth2Client(keys.web);
// Generate the url that will be used for the consent dialog.
const authorizeUrl = oAuth2Client.generateAuthUrl({
access_type: 'offline',
scope: 'https://www.googleapis.com/auth/userinfo.profile',
});
// Open an http server to accept the oauth callback. In this simple example, the
// only request to our webserver is to /oauth2callback?code=<code>
const server = http
.createServer(async (req, res) => {
try {
if (req.url.indexOf('/oauth2callback') > -1) {
// acquire the code from the querystring, and close the web server.
const qs = new url.URL(req.url, 'http://localhost:3000')
.searchParams;
const code = qs.get('code');
console.log(`Code is ${code}`);
res.end('Authentication successful! Please return to the console.');
server.destroy();
// Now that we have the code, use that to acquire tokens.
const r = await oAuth2Client.getToken(code);
// Make sure to set the credentials on the OAuth2 client.
oAuth2Client.setCredentials(r.tokens);
console.info('Tokens acquired.');
resolve(oAuth2Client);
}
} catch (e) {
reject(e);
}
})
.listen(3000, () => {
// open the browser to the authorize url to start the workflow
open(authorizeUrl, {wait: false}).then(cp => cp.unref());
});
destroyer(server);
});
}
main().catch(console.error);