diff --git a/src/app.controller.spec.ts b/src/app.controller.spec.ts
index d22f389..4ac71e3 100644
--- a/src/app.controller.spec.ts
+++ b/src/app.controller.spec.ts
@@ -1,22 +1 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
-
-describe('AppController', () => {
-  let appController: AppController;
-
-  beforeEach(async () => {
-    const app: TestingModule = await Test.createTestingModule({
-      controllers: [AppController],
-      providers: [AppService],
-    }).compile();
-
-    appController = app.get<AppController>(AppController);
-  });
-
-  describe('root', () => {
-    it('should return "Hello World!"', () => {
-      expect(appController.getHello()).toBe('Hello World!');
-    });
-  });
-});
+describe('AppController', () => {});
diff --git a/src/app.controller.ts b/src/app.controller.ts
index cce879e..3833980 100644
--- a/src/app.controller.ts
+++ b/src/app.controller.ts
@@ -1,12 +1,34 @@
-import { Controller, Get } from '@nestjs/common';
+import {
+  Body,
+  ClassSerializerInterceptor,
+  Controller,
+  Get,
+  Post,
+  UseInterceptors,
+} from '@nestjs/common';
 import { AppService } from './app.service';
+import { ApiBody, ApiExtraModels, getSchemaPath } from '@nestjs/swagger';
+import { TrackingDto } from '@/dtos/tracking.dto';
 
 @Controller()
+@ApiExtraModels(TrackingDto)
+@UseInterceptors(ClassSerializerInterceptor)
 export class AppController {
   constructor(private readonly appService: AppService) {}
 
   @Get()
-  getHello(): string {
-    return this.appService.getHello();
+  debug(): unknown {
+    return this.appService.debug();
+  }
+
+  @Post()
+  @ApiBody({
+    schema: {
+      $ref: getSchemaPath(TrackingDto),
+    },
+  })
+  test(@Body() body: TrackingDto): string {
+    console.log(body);
+    return 'ok';
   }
 }
diff --git a/src/app.service.ts b/src/app.service.ts
index 927d7cc..2ec496c 100644
--- a/src/app.service.ts
+++ b/src/app.service.ts
@@ -1,8 +1,19 @@
 import { Injectable } from '@nestjs/common';
+import { ContainerEntity } from '@/entities/container.entity';
+import { Repository } from 'typeorm';
+import { InjectRepository } from '@nestjs/typeorm';
 
 @Injectable()
 export class AppService {
-  getHello(): string {
-    return 'Hello World!';
+  constructor(
+    @InjectRepository(ContainerEntity)
+    private readonly containerRepository: Repository<ContainerEntity>,
+  ) {}
+  async debug(): Promise<unknown> {
+    return this.containerRepository.find({
+      take: 5,
+    });
+
+    // return 'Hello World!';
   }
 }