diff --git a/package.json b/package.json
index fcf20f2..a3dd237 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
   "dependencies": {
     "@nestjs/common": "^11.0.1",
     "@nestjs/core": "^11.0.1",
+    "@nestjs/mapped-types": "*",
     "@nestjs/platform-express": "^11.0.1",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
diff --git a/src/app.controller.spec.ts b/src/app.controller.spec.ts
deleted file mode 100644
index d22f389..0000000
--- a/src/app.controller.spec.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-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!');
-    });
-  });
-});
diff --git a/src/app.controller.ts b/src/app.controller.ts
deleted file mode 100644
index cce879e..0000000
--- a/src/app.controller.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-import { Controller, Get } from '@nestjs/common';
-import { AppService } from './app.service';
-
-@Controller()
-export class AppController {
-  constructor(private readonly appService: AppService) {}
-
-  @Get()
-  getHello(): string {
-    return this.appService.getHello();
-  }
-}
diff --git a/src/app.module.ts b/src/app.module.ts
index 8662803..edc9cc4 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,10 +1,9 @@
 import { Module } from '@nestjs/common';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
+import { TaskModule } from './task/task.module';
 
 @Module({
-  imports: [],
-  controllers: [AppController],
-  providers: [AppService],
+  imports: [TaskModule],
+  controllers: [],
+  providers: [],
 })
 export class AppModule {}
diff --git a/src/app.service.ts b/src/app.service.ts
deleted file mode 100644
index 927d7cc..0000000
--- a/src/app.service.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-import { Injectable } from '@nestjs/common';
-
-@Injectable()
-export class AppService {
-  getHello(): string {
-    return 'Hello World!';
-  }
-}
diff --git a/src/task/dto/create-task.dto.ts b/src/task/dto/create-task.dto.ts
new file mode 100644
index 0000000..7db2652
--- /dev/null
+++ b/src/task/dto/create-task.dto.ts
@@ -0,0 +1,3 @@
+export class CreateTaskDto {
+  title: string;
+}
diff --git a/src/task/dto/update-task.dto.ts b/src/task/dto/update-task.dto.ts
new file mode 100644
index 0000000..3acda63
--- /dev/null
+++ b/src/task/dto/update-task.dto.ts
@@ -0,0 +1,4 @@
+export class UpdateTaskDto {
+  title: string;
+  isCompleted: boolean;
+}
diff --git a/src/task/task.controller.ts b/src/task/task.controller.ts
new file mode 100644
index 0000000..8bdb09e
--- /dev/null
+++ b/src/task/task.controller.ts
@@ -0,0 +1,51 @@
+import {
+  Body,
+  Controller,
+  Delete,
+  Get,
+  Param,
+  Patch,
+  Post,
+  Put,
+} from '@nestjs/common';
+import { CreateTaskDto } from './dto/create-task.dto';
+import { UpdateTaskDto } from './dto/update-task.dto';
+import { TaskService } from './task.service';
+
+@Controller('task')
+export class TaskController {
+  constructor(private readonly taskService: TaskService) {}
+
+  @Get('all')
+  findAll() {
+    return this.taskService.findAll();
+  }
+
+  @Get('by-id/:id')
+  findById(
+    @Param('id')
+    id: string,
+  ) {
+    return this.taskService.findById(Number(id));
+  }
+
+  @Post()
+  create(@Body() dto: CreateTaskDto) {
+    return this.taskService.create(dto);
+  }
+
+  @Put(':id')
+  update(@Param('id') id: string, @Body() dto: UpdateTaskDto) {
+    return this.taskService.update(Number(id), dto);
+  }
+
+  @Patch(':id')
+  patchUpdate(@Param('id') id: string, @Body() dto: Partial<UpdateTaskDto>) {
+    return this.taskService.patchTask(Number(id), dto);
+  }
+
+  @Delete(':id')
+  delete(@Param('id') id: string) {
+    return this.taskService.delete(Number(id));
+  }
+}
diff --git a/src/task/task.module.ts b/src/task/task.module.ts
new file mode 100644
index 0000000..e7c4c1d
--- /dev/null
+++ b/src/task/task.module.ts
@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+import { TaskService } from './task.service';
+import { TaskController } from './task.controller';
+
+@Module({
+  controllers: [TaskController],
+  providers: [TaskService],
+})
+export class TaskModule {}
diff --git a/src/task/task.service.ts b/src/task/task.service.ts
new file mode 100644
index 0000000..fb95a41
--- /dev/null
+++ b/src/task/task.service.ts
@@ -0,0 +1,70 @@
+import { Injectable, NotFoundException } from '@nestjs/common';
+import { CreateTaskDto } from './dto/create-task.dto';
+import { UpdateTaskDto } from './dto/update-task.dto';
+
+@Injectable()
+export class TaskService {
+  private tasks = [
+    {
+      id: 1,
+      title: 'Learn Nestjs',
+      isCompleted: false,
+    },
+    {
+      id: 2,
+      title: 'Build API',
+      isCompleted: true,
+    },
+  ];
+
+  findAll() {
+    return this.tasks;
+  }
+
+  findById(id: number) {
+    const task = this.tasks.find((task) => task.id === id);
+
+    if (!task) {
+      throw new NotFoundException(`Not found task with id ${id}`);
+    }
+
+    return task;
+  }
+
+  create(dto: CreateTaskDto) {
+    const { title } = dto;
+    const newTask = {
+      id: this.tasks.length + 1,
+      title,
+      isCompleted: false,
+    };
+
+    this.tasks.push(newTask);
+
+    return newTask;
+  }
+
+  update(id: number, dto: UpdateTaskDto) {
+    const task = this.findById(id);
+    const { isCompleted, title } = dto;
+
+    task.isCompleted = isCompleted;
+    task.title = title;
+
+    return task;
+  }
+
+  patchTask(id: number, dto: Partial<UpdateTaskDto>) {
+    const task = this.findById(id);
+
+    Object.assign(task, dto);
+
+    return task;
+  }
+
+  delete(id: number) {
+    const task = this.findById(id);
+    this.tasks = this.tasks.filter((t) => t !== task);
+    return task;
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index aa76a6a..dd112d6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1008,6 +1008,11 @@
     path-to-regexp "8.2.0"
     tslib "2.8.1"
 
+"@nestjs/mapped-types@*":
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/@nestjs/mapped-types/-/mapped-types-2.1.0.tgz#b9b536b7c3571567aa1d0223db8baa1a51505a19"
+  integrity sha512-W+n+rM69XsFdwORF11UqJahn4J3xi4g/ZEOlJNL6KoW5ygWSmBB2p0S2BZ4FQeS/NDH72e6xIcu35SfJnE8bXw==
+
 "@nestjs/platform-express@^11.0.1":
   version "11.1.2"
   resolved "https://registry.yarnpkg.com/@nestjs/platform-express/-/platform-express-11.1.2.tgz#e4b2671c74876ff399f50b7a7f36cb4b4c9e35ec"