├── .gitignore
├── .env
├── src
    ├── controllers
    │   └── authController.js
    ├── server.js
    ├── routes
    │   └── authRoutes.js
    └── config
    │   └── passportConfig.js
└── package.json


/.gitignore:
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1 | node_modules


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/.env:
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1 | GOOGLE_CLIENT_ID=90574655086-gc7oa2q230db88epo5ds5ht8lauovpvf.apps.googleusercontent.com
2 | GOOGLE_CLIENT_SECRET=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
3 | FACEBOOK_CLIENT_ID=1782883102474623
4 | FACEBOOK_CLIENT_SECRET=25b97a1456ce311520a122a22b87280e
5 | URL_REDIRECT="http://localhost:5173/"


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/src/controllers/authController.js:
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 1 | const passport = require('passport');
 2 | 
 3 | exports.googleAuth = passport.authenticate('google', { scope: ['profile', 'email']});
 4 | exports.googleAuthCallback = passport.authenticate('google', {failureRedirect: '/'});
 5 | 
 6 | 
 7 | exports.facebookAuth = passport.authenticate('facebook', { scope: ['email']});
 8 | exports.facebookAuthCallback = passport.authenticate('facebook', {failureRedirect: '/'});
 9 | 
10 | exports.redirectHome =  (req, res) => {
11 |     res.redirect(process.env.URL_REDIRECT);
12 | };


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/src/server.js:
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 1 | require('dotenv').config();
 2 | const express = require('express');
 3 | const session = require('express-session');
 4 | const passport = require('./config/passportConfig');
 5 | const authRoutes = require('./routes/authRoutes');
 6 | 
 7 | const app = express();
 8 | 
 9 | app.use(session({
10 |     secret: '123456',
11 |     resave:false,
12 |     saveUninitialized:true
13 | }));
14 | 
15 | 
16 | app.use(passport.initialize());
17 | app.use(passport.session());
18 | app.use(authRoutes);
19 | 
20 | app.listen(3000, () => {
21 |     console.log("Aplicacion corriendo por el puerto 3000");
22 | });


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/package.json:
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 1 | {
 2 |   "name": "oauth2",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1",
 8 |     "dev": "nodemon src/server.js"
 9 |   },
10 |   "keywords": [],
11 |   "author": "",
12 |   "license": "ISC",
13 |   "dependencies": {
14 |     "cors": "^2.8.5",
15 |     "dotenv": "^16.4.5",
16 |     "express": "^4.21.1",
17 |     "express-session": "^1.18.1",
18 |     "nodemon": "^3.1.7",
19 |     "passport": "^0.7.0",
20 |     "passport-facebook": "^3.0.0",
21 |     "passport-google-oauth20": "^2.0.0"
22 |   }
23 | }
24 | 


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/src/routes/authRoutes.js:
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 1 | const express = require('express');
 2 | const router = express.Router();
 3 | const authController = require('../controllers/authController');
 4 | 
 5 | router.get('/auth/google', authController.googleAuth); //mostrar la pantalla de Autorizar y Denegar de Google
 6 | router.get('/auth/google/callback', authController.googleAuthCallback, authController.redirectHome);
 7 | 
 8 | router.get('/auth/facebook', authController.facebookAuth); //mostrar la pantalla de Autorizar y Denegar de Facebook
 9 | router.get('/auth/facebook/callback', authController.facebookAuthCallback, authController.redirectHome);
10 | 
11 | module.exports = router;


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/src/config/passportConfig.js:
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 1 | const passport = require('passport');
 2 | const GoogleStrategy = require('passport-google-oauth20');
 3 | const FacebookStrategy = require('passport-facebook');
 4 | 
 5 | passport.use(new GoogleStrategy({
 6 |     clientID: process.env.GOOGLE_CLIENT_ID,
 7 |     clientSecret: process.env.GOOGLE_CLIENT_SECRET,
 8 |     callbackURL: 'http://localhost:3000/auth/google/callback'
 9 | }, function(accessToken, refreshToken, profile, cb){
10 |     return cb(null,profile);
11 | }));
12 | 
13 | passport.use(new FacebookStrategy({
14 |     clientID: process.env.FACEBOOK_CLIENT_ID,
15 |     clientSecret: process.env.FACEBOOK_CLIENT_SECRET,
16 |     callbackURL: 'http://localhost:3000/auth/facebook/callback',
17 |     profileFields: ['id', 'displayName', 'emails']
18 | 
19 | }, function(accessToken, refreshToken, profile, cb){
20 |     return cb(null,profile);
21 | }));
22 | 
23 | 
24 | passport.serializeUser((user, done) => {
25 |     done(null, user);
26 | });
27 | 
28 | passport.deserializeUser((obj, done) => {
29 |     done(null, obj);
30 | });
31 | 
32 | module.exports = passport;


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