add service and first method to controller

src/main.ts

@@ -1,8 +1,28 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
+import { APP_CONTROLLER } from './consts';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
+
+  const options = new DocumentBuilder()
+    .addSecurity('apiKey', {
+      type: 'apiKey',
+      in: 'header',
+      name: 'Authorization',
+    })
+    .setTitle('Storage API')
+    .setDescription('API для работы с хранилищами')
+    .setVersion('1.0.0')
+    .addTag(APP_CONTROLLER)
+    .build();
+
+  const document = SwaggerModule.createDocument(app, options);
+
+  SwaggerModule.setup('api', app, document);
+
   await app.listen(process.env.PORT ?? 3000);
 }
-bootstrap();
+
+void bootstrap();