Add attachments, more pages

app/Providers/AppServiceProvider.php

@@ -2,6 +2,9 @@
 
 namespace App\Providers;
 
+use App\Services\BookInformation\BookLookupService;
+use App\Services\BookInformation\CachedService;
+use App\Services\BookInformation\GoogleBooks;
 use Illuminate\Pagination\Paginator;
 use Schema;
 use Illuminate\Support\ServiceProvider;
@@ -23,6 +26,8 @@ class AppServiceProvider extends ServiceProvider {
      * @return void
      */
     public function register() {
-        //
+        $this->app->singleton(BookLookupService::class, function() {
+            return new CachedService(new GoogleBooks());
+        });
     }
 }