Use Prefix for api routes and group authenticated routes.

routes/api.php

@@ -1,13 +1,22 @@
 <?php
 
-use App\Http\Controllers\AuthController;
+use App\Http\Controllers\Api\AuthController;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Route;
 
-Route::post('/register', [AuthController::class, 'register'])->name('register');
-Route::post('/login', [AuthController::class, 'login'])->name('login');
-Route::post('/logout', [AuthController::class, 'logout'])->name('logout')->middleware('auth:sanctum');
+Route::group(['as' => 'api.'], function () {
+
+    Route::post('/register', [AuthController::class, 'register'])->name('register');
+    Route::post('/login', [AuthController::class, 'login'])->name('login');
+
+    Route::group(['middleware' => ['auth:sanctum']], function () {
+        Route::post('/logout', [AuthController::class, 'logout'])->name('logout');
+
+        Route::get('/user', function (Request $request) {
+            return $request->user();
+        });
+
+    });
+
+});
 
-Route::get('/user', function (Request $request) {
-    return $request->user();
-})->middleware('auth:sanctum');