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index.js
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//query:
//user: emailAddress
//startTime: ISO 8601
//endTime: ISO 8601
const express = require('express')
const app = express()
const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');
// If modifying these scopes, delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/calendar.readonly'];
const TOKEN_PATH = 'token.json';
app.get('/', function(req, res) {
console.log("adsf", req.query.user)
res.setHeader('Content-Type', 'application/json');
res.setHeader('Access-Control-Allow-Origin', '*')
res.setHeader('Access-Control-Allow-Credentials', true)
res.setHeader('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, OPTIONS')
res.setHeader('Access-Control-Allow-Headers', 'Content-Type')
fs.readFile('credentials.json', (err, content) => {
if (err) return console.log('Error loading client secret file:', err);
// Authorize a client with credentials, then call the Google Calendar API.
authorize(JSON.parse(content),
function(auth) {
listEvents(auth, res, {
user: req.query.user,
startTime: req.query.startTime,
endTime: req.query.endTime
});
});
});
})
app.listen(3000)
/**
* 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) {
const {client_secret, client_id, redirect_uris} = credentials.installed;
const oAuth2Client = new google.auth.OAuth2(
client_id, client_secret, redirect_uris[0]);
// Check if we have previously stored a token.
fs.readFile(TOKEN_PATH, (err, token) => {
if (err) return getAccessToken(oAuth2Client, callback);
oAuth2Client.setCredentials(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 for the authorized client.
*/
function getAccessToken(oAuth2Client, callback) {
const authUrl = oAuth2Client.generateAuthUrl({
access_type: 'offline',
scope: SCOPES,
});
console.log('Authorize this app by visiting this url:', authUrl);
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.question('Enter the code from that page here: ', (code) => {
rl.close();
oAuth2Client.getToken(code, (err, token) => {
if (err) return console.error('Error retrieving access token', err);
oAuth2Client.setCredentials(token);
// Store the token to disk for later program executions
fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
if (err) return console.error(err);
console.log('Token stored to', TOKEN_PATH);
});
callback(oAuth2Client);
});
});
}
/**
* Lists the next 10 events on the user's primary calendar.
* @param {google.auth.OAuth2} auth An authorized OAuth2 client.
*/
function listEvents(auth, response, request) {
const calendar = google.calendar({version: 'v3', auth});
var startDate = new Date();
startDate.setDate(startDate.getDate()-7);
calendar.events.list({
calendarId: request.user,
timeMin: request.startTime,
timeMax: request.endTime,
maxResults: 100,
singleEvents: true,
orderBy: 'startTime',
}, (err, res) => {
if (err) return console.log('The API returned an error: ' + err);
const events = res.data.items;
if (events.length) {
var returnEvents = [];
events.map((event, i) => {
var startTime = event.start.dateTime;
var endTime = event.end.dateTime;
if (!startTime) {
startTime = event.start.date;
}
if (!endTime) {
endTime = event.end.date;
}
var firstLine = (event.description || "").split(/(<br>|\n)/)[0].replace(/(<([^>]+)>)/ig, "")
var timesheetCode = firstLine.match(/(Timesheet Code:)(.*)/) ? firstLine.match(/(Timesheet Code:)(.*)/)[2].trim() : "No Code"
returnEvents.push({
timesheetCode: timesheetCode,
startTime: startTime,
endTime, endTime,
summary: event.summary
});
});
response.end(JSON.stringify(returnEvents));
} else {
response.end("Something went wrong, speak to JP");
console.log("Something went wrong, speak to JP");
}
});
}