如何自动获取节点谷歌API的授权令牌为Gmail

我无法弄清楚如何让授权自动为用户。 我需要自动获得oauth标记,因为我的软件是所有的语音命令,但是当您尝试和检索用户电子邮件时,它会给您一个喜欢去授权的应用程序,我如何让自己的代码自动获得身份validation令牌和授权应用程序?

我试图做这个节点和angular度,以便用户的电子邮件将实时更新,如我的桌面应用程序的通知。 这是谷歌给出的示例代码,但它寻找该令牌的input。 我需要知道如何自动获取该令牌。

我只是在代码中丢失了一些东西:

(function() { 'use strict'; function EmailService($window, $http, $rootScope, $q) { var service = {}; service.events = []; service.getEmail = function() { var fs = require('fs'); var readline = require('readline'); var google = require('googleapis'); var googleAuth = require('google-auth-library'); // If modifying these scopes, delete your previously saved credentials // at ~/.credentials/gmail-nodejs-quickstart.json var SCOPES = ['https://www.googleapis.com/auth/gmail.readonly']; var TOKEN_DIR = '.credentials/'; var TOKEN_PATH = TOKEN_DIR + 'gmail-nodejs-quickstart.json'; // Load client secrets from a local file. fs.readFile('configs/client_secret.json', function processClientSecrets(err, content) { if (err) { console.log('Error loading client secret file: ' + err); return; } console.log(JSON.parse(content)); authorize(JSON.parse(content), listLabels); }); /** * Create an OAuth2 client with the given credentials, and then execute the * given callback function. * * @param {Object} credentials The authorization client credentials. * @param {function} callback The callback to call with the authorized client. */ function authorize(credentials, callback) { var clientSecret = credentials.installed.client_secret; var clientId = credentials.installed.client_id; var redirectUrl = credentials.installed.redirect_uris[0]; var auth = new googleAuth(); var oauth2Client = new auth.OAuth2(clientId, clientSecret, redirectUrl); console.log(oauth2Client); // Check if we have previously stored a token. fs.readFile(TOKEN_PATH, function(err, token) { if (err) { getNewToken(oauth2Client, callback); } else { oauth2Client.credentials = JSON.parse(token); callback(oauth2Client); } }); } /** * Get and store new token after prompting for user authorization, and then * execute the given callback with the authorized OAuth2 client. * * @param {google.auth.OAuth2} oauth2Client The OAuth2 client to get token for. * @param {getEventsCallback} callback The callback to call with the authorized * client. */ function getNewToken(oauth2Client, callback) { var authUrl = oauth2Client.generateAuthUrl({ access_type: 'offline', scope: SCOPES }); console.log('Authorize this app by visiting this url: ', authUrl); var rl = readline.createInterface({ input: process.stdin, output: process.stdout }); rl.question('Enter the code from that page here: ', function(code) { rl.close(); oauth2Client.getToken(code, function(err, token) { if (err) { console.log('Error while trying to retrieve access token', err); return; } oauth2Client.credentials = token; storeToken(token); callback(oauth2Client); }); }); } /** * Store token to disk be used in later program executions. * * @param {Object} token The token to store to disk. */ function storeToken(token) { try { fs.mkdirSync(TOKEN_DIR); } catch (err) { if (err.code != 'EEXIST') { throw err; } } fs.writeFile(TOKEN_PATH, JSON.stringify(token)); console.log('Token stored to ' + TOKEN_PATH); } /** * Lists the labels in the user's account. * * @param {google.auth.OAuth2} auth An authorized OAuth2 client. */ function listLabels(auth) { var gmail = google.gmail('v1'); gmail.users.labels.list({ auth: auth, userId: 'me', }, function(err, response) { if (err) { console.log('The API returned an error: ' + err); return; } var labels = response.labels; if (labels.length == 0) { console.log('No labels found.'); } else { console.log('Labels:'); for (var i = 0; i < labels.length; i++) { var label = labels[i]; console.log('- %s', label.name); } } }); } }; return service } angular.module('myApp') .factory('EmailService', EmailService); }()); 

       

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