Ionic中的Google日历

Question

我正在尝试使用Ionic创建移动应用程序，为了这个应用程序，我们需要使用Google日历。目标是创建一个应用程序，某些人可以订阅某些事件。这些事件现在在Google日历中创建，我们希望能够在我们的Google日历中订阅我们的应用程序，只显示某些事件。

我一直在寻找年龄现在，但我只是无法弄清楚如何与Ionic中的谷歌日历连接。

请帮我开始。

Answer 1

我已经能够解决它自己，但不是直接在离子。

我联系我的Node.js后端和node.js中是可以联系谷歌API ...

let eventCategories = require('./event.model'); 

let fs = require('fs'); 
let readline = require('readline'); 
let google = require('googleapis'); 
let googleAuth = require('google-auth-library'); 

// If modifying these scopes, delete your previously saved credentials 
// at ~/.credentials/calendar-nodejs-quickstart.json 
let SCOPES = ['https://www.googleapis.com/auth/calendar.readonly']; 
let TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH || 
    process.env.USERPROFILE) + '/.credentials/'; 
let TOKEN_PATH = TOKEN_DIR + 'calendar-nodejs-quickstart.json'; 


module.exports = { 
    getEventCategories, 
    getEvents 
}; 

function getEventCategories(){ 
    return eventCategories.find({}); 
} 

function getEvents(calendarId) { 
    return loadClientSecrets() 
    .then(res => authorize(JSON.parse(res)) 
        .then(response => listEvents(response, calendarId))) 

} 

function loadClientSecrets(){ 
    return new Promise(function (fulfill, reject){ 
    fs.readFile('client_secret.json', function processClientSecrets(err, content){ 
     if (err){ 
     console.log('Error loading client secret file: '+ err); 
     reject(err); 
     } 
     else fulfill(content); 
    }) 
    }) 
} 



/** 
* Create an OAuth2 client with the given credentials, and then execute the 
* given callback function. 
*/ 
function authorize(credentials) { 
    return new Promise(function (fulfill, reject){ 
    let clientSecret = credentials.installed.client_secret; 
    let clientId = credentials.installed.client_id; 
    let redirectUrl = credentials.installed.redirect_uris[0]; 
    let auth = new googleAuth(); 
    let oauth2Client = new auth.OAuth2(clientId, clientSecret, redirectUrl); 

    // Check if we have previously stored a token. 
    fs.readFile(TOKEN_PATH, function(err, token) { 
     if (err) { 
     fulfill(getNewToken(oauth2Client)); 
     } else { 
     oauth2Client.credentials = JSON.parse(token); 
     fulfill(oauth2Client); 
     } 
    }); 
    }) 
} 

/** 
* Get and store new token after prompting for user authorization, and then 
* execute the given callback with the authorized OAuth2 client. 
*/ 
function getNewToken(oauth2Client) { 
    new Promise (function (fulfill, reject){ 
    let authUrl = oauth2Client.generateAuthUrl({ 
     access_type: 'offline', 
     scope: SCOPES 
    }); 
    console.log('Authorize this app by visiting this url: ', authUrl); 
    let 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); 
      reject(err); 
     } 
     oauth2Client.credentials = token; 
     storeToken(token); 
     fulfill(oauth2Client); 
     }); 
    }); 
    }) 
} 

/** 
* Store token to disk be used in later program executions. 
*/ 
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 next 10 events on the user's primary calendar. 
*/ 
function listEvents(auth, calendarId) { 
    return new Promise(function (fulfill, reject){ 
    var calendar = google.calendar('v3'); 
    calendar.events.list({ 
     auth: auth, 
     calendarId: calendarId, 
     timeMin: (new Date()).toISOString(), 
     maxResults: 10, 
     singleEvents: true, 
     orderBy: 'startTime' 
    }, function(err, response) { 
     if (err) { 
     console.log('The API returned an error: ' + err); 
     reject(err); 
     } 
     let events = response.items; 
     if (events.length == 0) { 
     console.log('No upcoming events found.'); 
     } else { 
     console.log('Upcoming 10 events:'); 
     for (let i = 0; i < events.length; i++) { 
      let event = events[i]; 
      let start = event.start.dateTime || event.start.date; 
      console.log('%s - %s', start, event.summary); 
     } 
     fulfill(events) 
     } 
    }); 
    }) 
}