google-oauth2-x

Google OAuth2 X

$3

Simply extend the GoogleAuth class and override the openConsentScreen_() method, which should return a Promise.

#### Consent screen for electron app

``js
const GoogleAuth = require('google-oauth2-x');
const {shell} = require('electron');

class ElectronGoogleAuth extends GoogleAuth {
openConsentScreen_() {
return new Promise(resolve => {
let server = http.createServer((req, res) => {
resolve(req.url);
res.end('thanks');
server.close();
}).listen();
let port = server.address().port;
let endpoint = this.getConsentScreenEndpoint_(http://localhost:${port});

shell.openExternal(endpoint); // electron
});
}
}
`

#### Consent screen for node app

Replace electron.shell with child_process.exec:

`js
const GoogleAuth = require('google-oauth-2');
const {exec} = require('child_process');

class NodeGoogleAuth extends GoogleAuth {
openConsentScreen_() {
return new Promise(resolve => {
let server = http.createServer((req, res) => {
resolve(req.url);
res.end('thanks');
server.close();
}).listen();
let port = server.address().port;
let endpoint = this.getConsentScreenEndpoint_(http://localhost:${port});

exec('start https://google.com') // windows
});
}
}
`

$3

#### new GoogleAuth(string credentialsPath, string tokensPath, string scope)

#### Promise getToken()
1. Return the access token if there is one.
1. Otherwise, refresh the access token using the refresh token if there is one.
1. Otherwise, retrieve a refresh token through a consent screen.

#### Promise getRefreshedToken(bool force = false)
Same as getToken but will skip directly to step 2. If force is false (default), then multiple calls to getRefreshedToken while a refresh is in progress are safe; i.e. they will not refresh the token multiple times.

#### Promise getCleanToken(bool force = false)
Same as getToken but will skip directly to step 3. If force is false (default), then multiple calls to getCleanToken while a clean is in progress are safe; i.e. they will not open multiple consent screens or fetch multiple refresh tokens. This can be used to switch authentication accounts.

$3

`js
let youtubeAuth = new GoogleAuth(
'resources/credentials.json',
'appWorkingDir/tokens.json',
'https://www.googleapis.com/auth/youtube');

let main = async () => {
console.log(await youtubeAuth.getToken()); // xyz
console.log(await youtubeAuth.getToken()); // xyz
console.log(await youtubeAuth.getRefreshedToken()); // uvw
console.log(await youtubeAuth.getRefreshedToken()); // uvw
console.log(await youtubeAuth.getToken()); // uvw
console.log(await youtubeAuth.getRefreshedToken()); // rst
console.log(await youtubeAuth.getRefreshedToken(true)); // opq
console.log(await youtubeAuth.getToken()); // opq
};
main();
``