login system & basic design system

routes/auth.route.js

@@ -0,0 +1,34 @@
+const express = require('express');
+const {default: axios} = require("axios");
+const authService = require("../services/auth.service");
+
+var router = express.Router();
+
+
+router.get("/login", (req, res) => {
+    res.redirect(`https://github.com/login/oauth/authorize?client_id=` + process.env.GITHUB_CLIENT_ID)
+})
+
+
+router.get("/callback", async (req, res) => {
+    const access_token = await authService.getToken(req.query.code);
+    const user = await authService.fetchUser(access_token);
+    if (user) {
+        console.log(user)
+        req.session.access_token = access_token;
+        req.session.user = user;
+        req.session.loggedin = true;
+        res.redirect("/");
+    } else {
+        res.send("An error occured");
+    }
+});
+
+router.get("/logout", (req, res) => {
+    req.session.destroy(function() {
+        res.redirect('/')
+    })
+})
+
+
+module.exports = router;