From f2c1b270677669f3859e9c9e8e607559e613b314 Mon Sep 17 00:00:00 2001
From: Arshit Chaurasia <arshitcc@gmail.com>
Date: Thu, 16 Jan 2025 00:03:33 +0530
Subject: [PATCH] feat(backend) : Add signin with github

---
 backend/config/passportConfig.js | 12 ++++++++++++
 backend/package.json             |  1 +
 backend/routes/auth.js           | 14 ++++++++++++++
 src/pages/Auth/Login.tsx         |  6 +++---
 4 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/backend/config/passportConfig.js b/backend/config/passportConfig.js
index 842f50c..9767f2e 100644
--- a/backend/config/passportConfig.js
+++ b/backend/config/passportConfig.js
@@ -1,6 +1,8 @@
 const passport = require("passport");
 const LocalStrategy = require('passport-local').Strategy;
 const User = require("../models/User");
+const GitHubStrategy = require('passport-github2').Strategy;
+
 
 passport.use(
     new LocalStrategy(
@@ -29,6 +31,16 @@ passport.use(
     )
 );
 
+passport.use(new GitHubStrategy({
+    clientID: process.env.GITHUB_CLIENT_ID,
+    clientSecret: process.env.GITHUB_CLIENT_SECRET,
+    callbackURL: process.env.GITHUB_CALLBACK_URL,
+  },
+  function(accessToken, refreshToken, profile, cb) {
+    return cb(null, profile);
+  }
+));
+
 // Serialize user (store user info in session)
 passport.serializeUser((user, done) => {
     done(null, user.id);
diff --git a/backend/package.json b/backend/package.json
index 7d9c828..ec2b1c5 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -18,6 +18,7 @@
     "express-session": "^1.18.1",
     "mongoose": "^8.8.2",
     "passport": "^0.7.0",
+    "passport-github2": "^0.1.12",
     "passport-local": "^1.0.0"
   },
   "devDependencies": {
diff --git a/backend/routes/auth.js b/backend/routes/auth.js
index e26c7a9..1570634 100644
--- a/backend/routes/auth.js
+++ b/backend/routes/auth.js
@@ -39,4 +39,18 @@ router.get("/logout", (req, res) => {
     });
 });
 
+// Sign-in with Github routes
+router.get('/github', passport.authenticate('github', { scope: ['user:email'] }));
+
+router.get('/github/callback', 
+  passport.authenticate('github', { failureRedirect: 'api/auth/github/error' }),
+  (req, res) => {
+    res.redirect(`${process.env.CORS_ORIGIN}/home`);
+  }
+);
+
+router.get('/github/error', (req, res) => {
+  res.redirect(`${process.env.CORS_ORIGIN}/login`);
+});
+
 module.exports = router;
diff --git a/src/pages/Auth/Login.tsx b/src/pages/Auth/Login.tsx
index 6e23fab..d09e351 100644
--- a/src/pages/Auth/Login.tsx
+++ b/src/pages/Auth/Login.tsx
@@ -1,4 +1,4 @@
-import React, { useState } from "react";
+import React, { useEffect, useState } from "react";
 import {
   TextField,
   Button,
@@ -39,8 +39,8 @@ const Login: React.FC = () => {
     }
   };
 
-  const handleGithubLogin = () => {
-    console.log("GitHub login");
+  const handleGithubLogin = async () => {
+    window.location.href = `${import.meta.env.VITE_API_URL}/auth/github`;
   };
 
   return (