diff --git a/package-lock.json b/package-lock.json
index 19701e8788..0dbc74a8e1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
       },
       "devDependencies": {
         "@cypress/react18": "^2.0.1",
-        "@mate-academy/scripts": "^1.8.5",
+        "@mate-academy/scripts": "^2.1.3",
         "@mate-academy/students-ts-config": "*",
         "@mate-academy/stylelint-config": "*",
         "@types/node": "^20.14.10",
@@ -1183,10 +1183,11 @@
       }
     },
     "node_modules/@mate-academy/scripts": {
-      "version": "1.8.5",
-      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-1.8.5.tgz",
-      "integrity": "sha512-mHRY2FkuoYCf5U0ahIukkaRo5LSZsxrTSgMJheFoyf3VXsTvfM9OfWcZIDIDB521kdPrScHHnRp+JRNjCfUO5A==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-2.1.3.tgz",
+      "integrity": "sha512-a07wHTj/1QUK2Aac5zHad+sGw4rIvcNl5lJmJpAD7OxeSbnCdyI6RXUHwXhjF5MaVo9YHrJ0xVahyERS2IIyBQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@octokit/rest": "^17.11.2",
         "@types/get-port": "^4.2.0",
diff --git a/package.json b/package.json
index b6062525ab..6d0f20adcc 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "@cypress/react18": "^2.0.1",
-    "@mate-academy/scripts": "^1.8.5",
+    "@mate-academy/scripts": "^2.1.3",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",
diff --git a/src/App.tsx b/src/App.tsx
index 81e011f432..9cf9cc6c42 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,26 +1,295 @@
-/* eslint-disable max-len */
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useState, useEffect, useRef } from 'react';
+import { flushSync } from 'react-dom';
 import { UserWarning } from './UserWarning';
+import { ErrorNotification } from './components/ErrorNotification';
+import { Header } from './components/Header';
+import { TodoList } from './components/TodoList';
+import { Footer } from './components/Footer';
+import { getTodos, createTodo, deleteTodo, updateTodo } from './api/todos';
+import { Todo } from './types/Todo';
 
-const USER_ID = 0;
+type FilterType = 'all' | 'active' | 'completed';
 
-export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
+function getUserId(): number {
+  try {
+    const userData = localStorage.getItem('user');
+
+    return userData ? JSON.parse(userData).id || 0 : 0;
+  } catch {
+    return 0;
   }
+}
+
+function getFilteredTodos(todos: Todo[], filter: FilterType): Todo[] {
+  switch (filter) {
+    case 'active':
+      return todos.filter(todo => !todo.completed);
+    case 'completed':
+      return todos.filter(todo => todo.completed);
+    default:
+      return todos;
+  }
+}
+
+const TodoApp: React.FC<{ userId: number }> = ({ userId }) => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState('');
+  const [filter, setFilter] = useState<FilterType>('all');
+  const [loadingIds, setLoadingIds] = useState<number[]>([]);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [newTodoTitle, setNewTodoTitle] = useState('');
+  const [isInputDisabled, setIsInputDisabled] = useState(false);
+
+  const inputRef = useRef<HTMLInputElement>(null);
+  const errorTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  const showError = (message: string) => {
+    setErrorMessage(message);
+
+    if (errorTimerRef.current) {
+      clearTimeout(errorTimerRef.current);
+    }
+
+    errorTimerRef.current = setTimeout(() => {
+      setErrorMessage('');
+    }, 3000);
+  };
+
+  const hideError = () => {
+    setErrorMessage('');
+
+    if (errorTimerRef.current) {
+      clearTimeout(errorTimerRef.current);
+      errorTimerRef.current = null;
+    }
+  };
+
+  useEffect(() => {
+    inputRef.current?.focus();
+  }, []);
+
+  useEffect(() => {
+    getTodos(userId)
+      .then(setTodos)
+      .catch(() => showError('Unable to load todos'));
+  }, [userId]);
+
+  const addLoadingId = (id: number) => setLoadingIds(prev => [...prev, id]);
+
+  const removeLoadingId = (id: number) =>
+    setLoadingIds(prev => prev.filter(existingId => existingId !== id));
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    hideError();
+
+    const trimmed = newTodoTitle.trim();
+
+    if (!trimmed) {
+      showError('Title should not be empty');
+      inputRef.current?.focus();
+
+      return;
+    }
+
+    const temp: Todo = {
+      id: 0,
+      userId,
+      title: trimmed,
+      completed: false,
+    };
+
+    flushSync(() => {
+      setIsInputDisabled(true);
+      setTempTodo(temp);
+    });
+
+    let createdTodo: Todo | null = null;
+
+    try {
+      createdTodo = await createTodo(userId, trimmed);
+    } catch {
+      showError('Unable to add a todo');
+    } finally {
+      setTimeout(() => {
+        flushSync(() => {
+          setTempTodo(null);
+          setIsInputDisabled(false);
+          if (createdTodo) {
+            setTodos(prev => [...prev, createdTodo!]);
+            setNewTodoTitle('');
+          }
+        });
+        inputRef.current?.focus();
+      }, 0);
+    }
+  };
+
+  const handleDeleteTodo = async (id: number): Promise<void> => {
+    flushSync(() => addLoadingId(id));
+
+    let success = false;
+
+    try {
+      await deleteTodo(id);
+      success = true;
+    } catch {
+      showError('Unable to delete a todo');
+    } finally {
+      setTimeout(() => {
+        flushSync(() => {
+          removeLoadingId(id);
+          if (success) {
+            setTodos(prev => prev.filter(todo => todo.id !== id));
+          }
+        });
+        if (success) {
+          inputRef.current?.focus();
+        }
+      }, 0);
+    }
+
+    if (!success) {
+      throw new Error('Unable to delete a todo');
+    }
+  };
+
+  const handleUpdateTodo = async (
+    id: number,
+    data: Partial<Todo>,
+  ): Promise<void> => {
+    flushSync(() => addLoadingId(id));
+
+    let updated: Todo | null = null;
+
+    try {
+      updated = await updateTodo(id, data);
+    } catch {
+      showError('Unable to update a todo');
+    } finally {
+      setTimeout(() => {
+        flushSync(() => {
+          removeLoadingId(id);
+          if (updated) {
+            setTodos(prev => prev.map(todo => (todo.id === id ? updated! : todo)));
+          }
+        });
+      }, 0);
+    }
+
+    if (!updated) {
+      throw new Error('Unable to update a todo');
+    }
+  };
+
+  const handleToggleAll = async () => {
+    const allCompleted = todos.every(todo => todo.completed);
+    const newStatus = !allCompleted;
+    const todosToUpdate = todos.filter(todo => todo.completed !== newStatus);
+    const ids = todosToUpdate.map(todo => todo.id);
+
+    setLoadingIds(prev => [...prev, ...ids]);
+
+    let hasError = false;
+
+    await Promise.all(
+      todosToUpdate.map(todo =>
+        updateTodo(todo.id, { completed: newStatus })
+          .then(updated => {
+            setTodos(prev =>
+              prev.map(t => (t.id === updated.id ? updated : t)),
+            );
+          })
+          .catch(() => {
+            hasError = true;
+          }),
+      ),
+    );
+
+    if (hasError) {
+      showError('Unable to update a todo');
+    }
+
+    setLoadingIds(prev => prev.filter(id => !ids.includes(id)));
+  };
+
+  const handleClearCompleted = async () => {
+    const completedTodos = todos.filter(todo => todo.completed);
+    const ids = completedTodos.map(todo => todo.id);
+
+    setLoadingIds(prev => [...prev, ...ids]);
+
+    let hasError = false;
+
+    await Promise.all(
+      completedTodos.map(todo =>
+        deleteTodo(todo.id)
+          .then(() => {
+            setTodos(prev => prev.filter(t => t.id !== todo.id));
+          })
+          .catch(() => {
+            hasError = true;
+          }),
+      ),
+    );
+
+    if (hasError) {
+      showError('Unable to delete a todo');
+    }
+
+    setLoadingIds(prev => prev.filter(id => !ids.includes(id)));
+    inputRef.current?.focus();
+  };
+
+  const filteredTodos = getFilteredTodos(todos, filter);
+  const hasTodos = todos.length > 0;
 
   return (
-    <section className="section container">
-      <p className="title is-4">
-        Copy all you need from the prev task:
-        <br />
-        <a href="https://github.com/mate-academy/react_todo-app-add-and-delete#react-todo-app-add-and-delete">
-          React Todo App - Add and Delete
-        </a>
-      </p>
-
-      <p className="subtitle">Styles are already copied</p>
-    </section>
+    <div className="todoapp">
+      <h1 className="todoapp__title">todos</h1>
+
+      <div className="todoapp__content">
+        <Header
+          todos={todos}
+          newTodoTitle={newTodoTitle}
+          isInputDisabled={isInputDisabled}
+          onTitleChange={setNewTodoTitle}
+          onSubmit={handleSubmit}
+          onToggleAll={handleToggleAll}
+          inputRef={inputRef}
+        />
+
+        {(hasTodos || tempTodo) && (
+          <TodoList
+            todos={filteredTodos}
+            tempTodo={tempTodo}
+            loadingIds={loadingIds}
+            onDelete={handleDeleteTodo}
+            onUpdate={handleUpdateTodo}
+          />
+        )}
+
+        {hasTodos && (
+          <Footer
+            todos={todos}
+            filter={filter}
+            onFilterChange={setFilter}
+            onClearCompleted={handleClearCompleted}
+          />
+        )}
+      </div>
+
+      <ErrorNotification error={errorMessage} onClose={hideError} />
+    </div>
   );
 };
+
+export const App: React.FC = () => {
+  const userId = getUserId();
+
+  if (!userId) {
+    return <UserWarning />;
+  }
+
+  return <TodoApp userId={userId} />;
+};
diff --git a/src/api/todos.ts b/src/api/todos.ts
new file mode 100644
index 0000000000..d1648eb6e1
--- /dev/null
+++ b/src/api/todos.ts
@@ -0,0 +1,18 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export function getTodos(userId: number): Promise<Todo[]> {
+  return client.get<Todo[]>(`/todos?userId=${userId}`);
+}
+
+export function createTodo(userId: number, title: string): Promise<Todo> {
+  return client.post<Todo>('/todos', { userId, title, completed: false });
+}
+
+export function deleteTodo(todoId: number): Promise<unknown> {
+  return client.delete(`/todos/${todoId}`);
+}
+
+export function updateTodo(todoId: number, data: Partial<Todo>): Promise<Todo> {
+  return client.patch<Todo>(`/todos/${todoId}`, data);
+}
diff --git a/src/components/ErrorNotification.tsx b/src/components/ErrorNotification.tsx
new file mode 100644
index 0000000000..ee8295f0b9
--- /dev/null
+++ b/src/components/ErrorNotification.tsx
@@ -0,0 +1,27 @@
+import React from 'react';
+import classNames from 'classnames';
+
+type Props = {
+  error: string;
+  onClose: () => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({ error, onClose }) => {
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={classNames(
+        'notification is-danger is-light has-text-weight-normal',
+        { hidden: !error },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={onClose}
+      />
+      {error}
+    </div>
+  );
+};
diff --git a/src/components/Footer.tsx b/src/components/Footer.tsx
new file mode 100644
index 0000000000..33f711662f
--- /dev/null
+++ b/src/components/Footer.tsx
@@ -0,0 +1,80 @@
+import React from 'react';
+import classNames from 'classnames';
+import { Todo } from '../types/Todo';
+
+type FilterType = 'all' | 'active' | 'completed';
+
+type Props = {
+  todos: Todo[];
+  filter: FilterType;
+  onFilterChange: (filter: FilterType) => void;
+  onClearCompleted: () => void;
+};
+
+export const Footer: React.FC<Props> = ({
+  todos,
+  filter,
+  onFilterChange,
+  onClearCompleted,
+}) => {
+  const activeTodosCount = todos.filter(todo => !todo.completed).length;
+  const hasCompleted = todos.some(todo => todo.completed);
+
+  return (
+    <footer className="todoapp__footer" data-cy="TodosFooter">
+      <span className="todo-count" data-cy="TodosCounter">
+        {activeTodosCount} item{activeTodosCount !== 1 ? 's' : ''} left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        <a
+          href="#/"
+          data-cy="FilterLinkAll"
+          className={classNames('filter__link', { selected: filter === 'all' })}
+          onClick={e => {
+            e.preventDefault();
+            onFilterChange('all');
+          }}
+        >
+          All
+        </a>
+        <a
+          href="#/active"
+          data-cy="FilterLinkActive"
+          className={classNames('filter__link', {
+            selected: filter === 'active',
+          })}
+          onClick={e => {
+            e.preventDefault();
+            onFilterChange('active');
+          }}
+        >
+          Active
+        </a>
+        <a
+          href="#/completed"
+          data-cy="FilterLinkCompleted"
+          className={classNames('filter__link', {
+            selected: filter === 'completed',
+          })}
+          onClick={e => {
+            e.preventDefault();
+            onFilterChange('completed');
+          }}
+        >
+          Completed
+        </a>
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={!hasCompleted}
+        onClick={onClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};
diff --git a/src/components/Header.tsx b/src/components/Header.tsx
new file mode 100644
index 0000000000..56d9249213
--- /dev/null
+++ b/src/components/Header.tsx
@@ -0,0 +1,53 @@
+import React from 'react';
+import classNames from 'classnames';
+import { Todo } from '../types/Todo';
+
+type Props = {
+  todos: Todo[];
+  newTodoTitle: string;
+  isInputDisabled: boolean;
+  onTitleChange: (value: string) => void;
+  onSubmit: (e: React.FormEvent) => void;
+  onToggleAll: () => void;
+  inputRef: React.RefObject<HTMLInputElement>;
+};
+
+export const Header: React.FC<Props> = ({
+  todos,
+  newTodoTitle,
+  isInputDisabled,
+  onTitleChange,
+  onSubmit,
+  onToggleAll,
+  inputRef,
+}) => {
+  const allCompleted = todos.length > 0 && todos.every(todo => todo.completed);
+
+  return (
+    <header className="todoapp__header">
+      {todos.length > 0 && (
+        <button
+          type="button"
+          data-cy="ToggleAllButton"
+          className={classNames('todoapp__toggle-all', {
+            active: allCompleted,
+          })}
+          onClick={onToggleAll}
+        />
+      )}
+
+      <form onSubmit={onSubmit}>
+        <input
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          value={newTodoTitle}
+          disabled={isInputDisabled}
+          ref={inputRef}
+          onChange={e => onTitleChange(e.target.value)}
+        />
+      </form>
+    </header>
+  );
+};
diff --git a/src/components/TodoItem.tsx b/src/components/TodoItem.tsx
new file mode 100644
index 0000000000..a6594fb795
--- /dev/null
+++ b/src/components/TodoItem.tsx
@@ -0,0 +1,143 @@
+import React, { useState, useRef, useEffect } from 'react';
+import classNames from 'classnames';
+import { Todo } from '../types/Todo';
+
+type Props = {
+  todo: Todo;
+  isLoading: boolean;
+  onDelete: (id: number) => Promise<void>;
+  onUpdate: (id: number, data: Partial<Todo>) => Promise<void>;
+};
+
+export const TodoItem: React.FC<Props> = ({
+  todo,
+  isLoading,
+  onDelete,
+  onUpdate,
+}) => {
+  const [isEditing, setIsEditing] = useState(false);
+  const [editTitle, setEditTitle] = useState(todo.title);
+  const editInputRef = useRef<HTMLInputElement>(null);
+  const submittingRef = useRef(false);
+  const escPressedRef = useRef(false);
+
+  useEffect(() => {
+    if (isEditing) {
+      editInputRef.current?.focus();
+    }
+  }, [isEditing]);
+
+  const doSubmit = async () => {
+    if (submittingRef.current || escPressedRef.current) {
+      return;
+    }
+
+    const trimmed = editTitle.trim();
+
+    if (trimmed === todo.title) {
+      setIsEditing(false);
+
+      return;
+    }
+
+    submittingRef.current = true;
+
+    if (!trimmed) {
+      try {
+        await onDelete(todo.id);
+      } catch {
+        submittingRef.current = false;
+      }
+
+      return;
+    }
+
+    try {
+      await onUpdate(todo.id, { title: trimmed });
+      setIsEditing(false);
+      submittingRef.current = false;
+    } catch {
+      submittingRef.current = false;
+      editInputRef.current?.focus();
+    }
+  };
+
+  const handleDoubleClick = () => {
+    escPressedRef.current = false;
+    submittingRef.current = false;
+    setEditTitle(todo.title);
+    setIsEditing(true);
+  };
+
+  const handleKeyDown = (e: React.KeyboardEvent<HTMLInputElement>) => {
+    if (e.key === 'Enter') {
+      doSubmit();
+    }
+  };
+
+  const handleKeyUp = (e: React.KeyboardEvent<HTMLInputElement>) => {
+    if (e.key === 'Escape') {
+      escPressedRef.current = true;
+      setEditTitle(todo.title);
+      setIsEditing(false);
+    }
+  };
+
+  return (
+    <div
+      data-cy="Todo"
+      className={classNames('todo', { completed: todo.completed })}
+    >
+      {/* eslint-disable-next-line jsx-a11y/label-has-associated-control */}
+      <label className="todo__status-label">
+        <input
+          data-cy="TodoStatus"
+          type="checkbox"
+          className="todo__status"
+          checked={todo.completed}
+          onChange={() => onUpdate(todo.id, { completed: !todo.completed })}
+        />
+      </label>
+
+      {isEditing ? (
+        <input
+          data-cy="TodoTitleField"
+          type="text"
+          className="todo__title-field"
+          ref={editInputRef}
+          value={editTitle}
+          onChange={e => setEditTitle(e.target.value)}
+          onBlur={doSubmit}
+          onKeyDown={handleKeyDown}
+          onKeyUp={handleKeyUp}
+        />
+      ) : (
+        <>
+          <span
+            data-cy="TodoTitle"
+            className="todo__title"
+            onDoubleClick={handleDoubleClick}
+          >
+            {todo.title}
+          </span>
+          <button
+            type="button"
+            className="todo__remove"
+            data-cy="TodoDelete"
+            onClick={() => onDelete(todo.id)}
+          >
+            ×
+          </button>
+        </>
+      )}
+
+      <div
+        data-cy="TodoLoader"
+        className={classNames('modal overlay', { 'is-active': isLoading })}
+      >
+        <div className="modal-background has-background-white-ter" />
+        <div className="loader" />
+      </div>
+    </div>
+  );
+};
diff --git a/src/components/TodoList.tsx b/src/components/TodoList.tsx
new file mode 100644
index 0000000000..5a5aeb903b
--- /dev/null
+++ b/src/components/TodoList.tsx
@@ -0,0 +1,48 @@
+import React from 'react';
+import { TransitionGroup, CSSTransition } from 'react-transition-group';
+import { Todo } from '../types/Todo';
+import { TodoItem } from './TodoItem';
+
+type Props = {
+  todos: Todo[];
+  tempTodo: Todo | null;
+  loadingIds: number[];
+  onDelete: (id: number) => Promise<void>;
+  onUpdate: (id: number, data: Partial<Todo>) => Promise<void>;
+};
+
+export const TodoList: React.FC<Props> = ({
+  todos,
+  tempTodo,
+  loadingIds,
+  onDelete,
+  onUpdate,
+}) => {
+  return (
+    <section className="todoapp__main" data-cy="TodoList">
+      <TransitionGroup>
+        {todos.map(todo => (
+          <CSSTransition key={todo.id} timeout={300} classNames="item">
+            <TodoItem
+              todo={todo}
+              isLoading={loadingIds.includes(todo.id)}
+              onDelete={onDelete}
+              onUpdate={onUpdate}
+            />
+          </CSSTransition>
+        ))}
+
+        {tempTodo && (
+          <CSSTransition key={0} timeout={300} classNames="temp-item">
+            <TodoItem
+              todo={tempTodo}
+              isLoading
+              onDelete={onDelete}
+              onUpdate={onUpdate}
+            />
+          </CSSTransition>
+        )}
+      </TransitionGroup>
+    </section>
+  );
+};
diff --git a/src/types/Todo.ts b/src/types/Todo.ts
new file mode 100644
index 0000000000..d4b6e8c0c8
--- /dev/null
+++ b/src/types/Todo.ts
@@ -0,0 +1,6 @@
+export type Todo = {
+  id: number;
+  userId: number;
+  title: string;
+  completed: boolean;
+};
diff --git a/src/utils/fetchClient.ts b/src/utils/fetchClient.ts
new file mode 100644
index 0000000000..253dff114f
--- /dev/null
+++ b/src/utils/fetchClient.ts
@@ -0,0 +1,35 @@
+const BASE_URL = 'https://mate.academy/students-api';
+
+type RequestOptions = {
+  method?: string;
+  body?: string;
+};
+
+function request<T>(url: string, options: RequestOptions = {}): Promise<T> {
+  const headers = {
+    'Content-Type': 'application/json; charset=UTF-8',
+  };
+
+  return fetch(BASE_URL + url, { ...options, headers }).then(response => {
+    if (!response.ok) {
+      throw new Error();
+    }
+
+    return response.json();
+  });
+}
+
+export const client = {
+  get: <T>(url: string) => request<T>(url),
+  post: <T>(url: string, data: unknown) =>
+    request<T>(url, {
+      method: 'POST',
+      body: JSON.stringify(data),
+    }),
+  patch: <T>(url: string, data: unknown) =>
+    request<T>(url, {
+      method: 'PATCH',
+      body: JSON.stringify(data),
+    }),
+  delete: (url: string) => request(url, { method: 'DELETE' }),
+};