..

backend/app.js

@@ -1,15 +1,149 @@
 const express = require('express')
+const bodyParser = require("body-parser");
+var fs = require('fs');
+var readline = require('readline');
+var google = require('googleapis');
+var googleAuth = require('google-auth-library');
+
 require('dotenv').config()
 
+const PEOPLE_DB = process.env.PEOPLE_DB;
+const PAIRS_LIST = process.env.PAIRS_LIST;
+
 const app = express()
 const router = express.Router();
 
+
+router.use(bodyParser.urlencoded({ extended: false }));
+router.use(bodyParser.json());
+
 /*
 app.get('/', function (req, res) {
   res.send('Hello World!')
 })
 */
 
+var SCOPES = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
+var TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH ||
+    process.env.USERPROFILE) + '/.credentials/';
+var TOKEN_PATH = TOKEN_DIR + 'sheets.googleapis.com-nodejs-quickstart.json';
+
+fs.readFile('client_secret.json', function processClientSecrets(err, content) {
+  console.log("reading client secret");
+  if (err) {
+    console.log('Error loading client secret file: ' + err);
+    return;
+  }
+  // Authorize a client with the loaded credentials, then call the
+  // Google Sheets API.
+  authorize(JSON.parse(content), listPairs);
+});
+
+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);
+
+  // Check if we have previously stored a token.
+  fs.readFile(TOKEN_PATH, function(err, token) {
+    console.log(TOKEN_PATH);
+    if (err) {
+      getNewToken(oauth2Client, callback);
+    } else {
+      oauth2Client.credentials = JSON.parse(token);
+      callback(oauth2Client);
+    }
+  });
+}
+
+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);
+    });
+  });
+}
+
+function storeToken(token) {
+  try {
+    fs.mkdirSync(TOKEN_DIR);
+  } catch (err) {
+    if (err.code != 'EEXIST') {
+      throw err;
+    }
+  }
+  console.log(JSON.stringify(token));
+  fs.writeFile(TOKEN_PATH, JSON.stringify(token));
+  console.log('Token stored to ' + TOKEN_PATH);
+}
+
+function listPairs(auth){
+  ranges = ['2017!A:A','2017!B:B'];
+  var sheets = google.sheets('v4');
+  sheets.spreadsheets.values.batchGet({
+    auth: auth,
+    spreadsheetId: '1gPuRhTry3YoJ_ibI2BfL1ue2_YLlhtW56OP39ADJY_4',
+    ranges: ranges
+  }, function(err, result) {
+   if(err) {
+     // Handle error
+     console.log(err);
+   } else {
+     console.log('%d ranges retrieved.', result.valueRanges.length);
+     console.log(result.valueRanges[0].values[0]);
+   }
+  });
+}
+/*
+function listPairs(auth) {
+  var sheets = google.sheets('v4');
+  sheets.spreadsheets.values.get({
+    auth: auth,
+    spreadsheetId: '1gPuRhTry3YoJ_ibI2BfL1ue2_YLlhtW56OP39ADJY_4',
+    range: '2017!A:A',
+  }, function(err, response) {
+    if (err) {
+      console.log('The API returned an error: ' + err);
+      return;
+    }
+    var rows = response.values;
+    if (rows.length == 0) {
+      console.log('No data found.');
+    } else {
+      console.log('Name, Major:');
+      for (var i = 0; i < rows.length; i++) {
+        var row = rows[i];
+        // Print columns A and E, which correspond to indices 0 and 4.
+        console.log('%s, %s', row[0], row[4]);
+      }
+    }
+  });
+}*/
+
+router.post('/getPairs',(req,resp)=>{
+  //resp.send({ime:'Bilal',prezime:'Catic'});
+  // Load client secrets from a local file.
+
+});
+
 app.listen(3005, function () {
   console.log('server na portu 3005');
 })