Adding support to login via discord oauth.

app/Http/Controllers/Auth/OAuthController.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Http\Controllers\Auth;
+
+use App\Models\User;
+use App\Http\Controllers\Controller;
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+use Laravel\Socialite\Facades\Socialite;
+
+class OAuthController extends Controller
+{
+    /**
+     * Redirect to OAuth driver.
+     *
+     * @return \Illuminate\Http\RedirectResponse
+     */
+    public function create($driver)
+    {
+        return Socialite::driver($driver)->redirect();
+    }
+
+    /**
+     * Handle callback from OAuth driver.
+     *
+     * @return \Illuminate\Http\RedirectResponse
+     */
+    public function store(Request $request, $driver)
+    {
+        $oauth = Socialite::driver($driver)->stateless()->user();
+
+        $user = User::firstOrCreate([ "{$driver}_id" => $oauth->getId() ], [
+            'username' => $oauth->getNickname()
+        ]);
+
+        Auth::guard('web')->login($user, true);
+
+        $request->session()->regenerate();
+
+        return redirect('/');
+    }
+}