diff --git a/README.md b/README.md
index d3c3756ab..13be1b9df 100644
--- a/README.md
+++ b/README.md
@@ -47,4 +47,4 @@ Implement the ability to edit a todo title on double click:
 
 - Implement a solution following the [React task guideline](https://github.com/mate-academy/react_task-guideline#react-tasks-guideline).
 - Use the [React TypeScript cheat sheet](https://mate-academy.github.io/fe-program/js/extra/react-typescript).
-- Replace `<your_account>` with your Github username in the [DEMO LINK](https://<your_account>.github.io/react_todo-app-with-api/) and add it to the PR description.
+- Replace `<your_account>` with your Github username in the [DEMO LINK](https://dokrod.github.io/react_todo-app-with-api/) and add it to the PR description.
diff --git a/src/App.tsx b/src/App.tsx
index 81e011f43..29e1195a9 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,26 +1,88 @@
-/* eslint-disable max-len */
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useCallback, useState } from 'react';
+
+import { Todo } from './types/Todo';
+
 import { UserWarning } from './UserWarning';
+import { USER_ID } from './api/todos';
 
-const USER_ID = 0;
+import { Footer } from './components/Footer';
+import { Header } from './components/Header';
+import { TodoItem } from './components/TodoItem';
+import { ErrorNotification } from './components/ErrorNotification';
+import { useTodos } from './components/hooks/useTodos';
 
 export const App: React.FC = () => {
+  const {
+    todos,
+    errorMessage,
+    loadingTodosIds,
+    filteredTodos,
+    filter,
+    setTodos,
+    deleteTodo,
+    updateTodo,
+    toggleCompleted,
+    bulkToggleCompleted,
+    handleErrorMessage,
+    handleRemoveError,
+    handleFilterChange,
+  } = useTodos();
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+
+  const handleTempTodo = useCallback(
+    (todo: Todo | null) => {
+      setTempTodo(todo);
+    },
+    [setTempTodo],
+  );
+
   if (!USER_ID) {
     return <UserWarning />;
   }
 
   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}
+          setTodos={setTodos}
+          onError={handleErrorMessage}
+          setTempTodo={handleTempTodo}
+          bulkToggleCompleted={bulkToggleCompleted}
+          tempTodo={tempTodo}
+        />
+
+        <section className="todoapp__main" data-cy="TodoList">
+          {filteredTodos.map(todo => (
+            <TodoItem
+              todo={todo}
+              loadingTodosIds={loadingTodosIds}
+              onDelete={deleteTodo}
+              onUpdate={updateTodo}
+              onChangeCompleted={toggleCompleted}
+              key={todo.id}
+            />
+          ))}
+        </section>
+
+        {tempTodo && (
+          <TodoItem todo={tempTodo} loadingTodosIds={loadingTodosIds} />
+        )}
+
+        {!!todos.length && (
+          <Footer
+            filterBy={filter}
+            setFilter={handleFilterChange}
+            todos={todos}
+            onDelete={deleteTodo}
+          />
+        )}
+      </div>
+      <ErrorNotification
+        errorMessage={errorMessage}
+        handleRemoveError={handleRemoveError}
+      />
+    </div>
   );
 };
diff --git a/src/api/todos.ts b/src/api/todos.ts
new file mode 100644
index 000000000..cf3554b33
--- /dev/null
+++ b/src/api/todos.ts
@@ -0,0 +1,34 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 1623;
+
+const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+const createTodo = ({
+  title,
+  userId = USER_ID,
+  completed,
+}: Omit<Todo, 'id'>) => {
+  return client.post<Todo>(`/todos`, {
+    title,
+    userId,
+    completed,
+  });
+};
+
+const updateTodo = (updatedTodo: Todo) =>
+  client.patch<Todo>(`/todos/${updatedTodo.id}`, updatedTodo);
+
+export const todosService = {
+  getAll: getTodos,
+  create: createTodo,
+  delete: deleteTodo,
+  update: updateTodo,
+};
diff --git a/src/components/ErrorNotification.tsx b/src/components/ErrorNotification.tsx
new file mode 100644
index 000000000..06638b33a
--- /dev/null
+++ b/src/components/ErrorNotification.tsx
@@ -0,0 +1,30 @@
+import cn from 'classnames';
+import { ErrorType } from '../types/ErrorType';
+import React from 'react';
+
+type Props = {
+  errorMessage: ErrorType;
+  handleRemoveError: () => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({
+  errorMessage,
+  handleRemoveError,
+}) => {
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={cn('notification is-danger is-light has-text-weight-normal', {
+        hidden: errorMessage === ErrorType.DEFAULT,
+      })}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={handleRemoveError}
+      />
+      {errorMessage !== ErrorType.DEFAULT && errorMessage}
+    </div>
+  );
+};
diff --git a/src/components/Footer.tsx b/src/components/Footer.tsx
new file mode 100644
index 000000000..4ae5779b8
--- /dev/null
+++ b/src/components/Footer.tsx
@@ -0,0 +1,62 @@
+import React from 'react';
+import { Todo } from '../types/Todo';
+import { getFilteredTodos } from '../utils/getFilteredTodo';
+import { FilterType } from '../types/FilterType';
+import cn from 'classnames';
+
+type Props = {
+  todos: Todo[];
+  filterBy: FilterType;
+  setFilter: (filterBy: FilterType) => void;
+  onDelete: (todoId: number) => Promise<void>;
+};
+
+export const Footer: React.FC<Props> = ({
+  todos,
+  filterBy,
+  setFilter,
+  onDelete,
+}) => {
+  const competedTodos = getFilteredTodos(todos, FilterType.completed);
+  const activeTodos = getFilteredTodos(todos, FilterType.active);
+
+  const filters = Object.values(FilterType);
+
+  const handleDeleteAllCompleted = () => {
+    competedTodos.map(todo => onDelete(todo.id));
+  };
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {activeTodos.length} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {filters.map(filter => (
+          <a
+            href="#/"
+            className={cn('filter__link', {
+              selected: filterBy === filter,
+            })}
+            data-cy={`FilterLink${filter}`}
+            onClick={() => setFilter(filter)}
+            key={filter}
+          >
+            {filter}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        onClick={handleDeleteAllCompleted}
+        disabled={!competedTodos.length}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};
diff --git a/src/components/Header.tsx b/src/components/Header.tsx
new file mode 100644
index 000000000..4fa0d5ca4
--- /dev/null
+++ b/src/components/Header.tsx
@@ -0,0 +1,103 @@
+import React, { useEffect, useRef, useState } from 'react';
+import cn from 'classnames';
+
+import { Todo } from '../types/Todo';
+import { ErrorType } from '../types/ErrorType';
+import { todosService, USER_ID } from '../api/todos';
+
+type Props = {
+  todos: Todo[];
+  tempTodo: Todo | null;
+  setTodos: (updateTodos: (todos: Todo[]) => Todo[]) => void;
+  setTempTodo: (todo: Todo | null) => void;
+  onError: (error: ErrorType) => void;
+  bulkToggleCompleted: () => void;
+};
+
+export const Header: React.FC<Props> = ({
+  todos,
+  tempTodo,
+  setTodos,
+  onError,
+  setTempTodo,
+  bulkToggleCompleted,
+}) => {
+  const [title, setTitle] = useState('');
+
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  const allIsCompleted = todos.every(todo => todo.completed);
+
+  const handleChangeTitle = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setTitle(event.target.value);
+    onError(ErrorType.DEFAULT);
+  };
+
+  const reset = () => {
+    setTitle('');
+  };
+
+  const handleSubmit = async (event: React.FormEvent) => {
+    event.preventDefault();
+
+    const normalizeTitle = title.trim();
+
+    if (!normalizeTitle) {
+      onError(ErrorType.TITLE);
+
+      return;
+    }
+
+    const newTodo = {
+      id: 0,
+      title: normalizeTitle,
+      userId: USER_ID,
+      completed: false,
+    };
+
+    setTempTodo(newTodo);
+
+    try {
+      const todo = await todosService.create(newTodo);
+
+      setTodos(currentTodos => [...currentTodos, todo]);
+      reset();
+    } catch {
+      onError(ErrorType.ADD);
+      setTempTodo(null);
+    } finally {
+      setTempTodo(null);
+    }
+  };
+
+  useEffect(() => {
+    inputRef.current?.focus();
+  }, [todos, tempTodo]);
+
+  return (
+    <header className="todoapp__header">
+      {!!todos.length && (
+        <button
+          type="button"
+          className={cn('todoapp__toggle-all', { active: allIsCompleted })}
+          data-cy="ToggleAllButton"
+          onClick={bulkToggleCompleted}
+        />
+      )}
+
+      <form method="POST" onSubmit={handleSubmit}>
+        <input
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          ref={inputRef}
+          value={title}
+          onChange={handleChangeTitle}
+          disabled={!!tempTodo}
+          autoFocus
+        />
+      </form>
+    </header>
+  );
+};
diff --git a/src/components/TodoItem.tsx b/src/components/TodoItem.tsx
new file mode 100644
index 000000000..1244cb5d8
--- /dev/null
+++ b/src/components/TodoItem.tsx
@@ -0,0 +1,139 @@
+import React, {
+  FormEvent,
+  useState,
+  KeyboardEvent,
+  useRef,
+  useEffect,
+} from 'react';
+import cn from 'classnames';
+import { Todo } from '../types/Todo';
+
+type Props = {
+  todo: Todo;
+  loadingTodosIds: number[];
+  onDelete?: (todoId: number) => Promise<void>;
+  onUpdate?: (todoToUpdate: Todo) => Promise<void>;
+  onChangeCompleted?: (todo: Todo) => void;
+};
+
+export const TodoItem: React.FC<Props> = ({
+  todo,
+  loadingTodosIds,
+  onDelete = () => {},
+  onUpdate = () => {},
+  onChangeCompleted = () => {},
+}) => {
+  const [isEditing, setIsEditing] = useState(false);
+  const [newTitle, setNewTitle] = useState(todo.title);
+
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  useEffect(() => {
+    if (isEditing) {
+      inputRef.current?.focus();
+    }
+  }, [isEditing]);
+
+  const handleRename = () => {
+    const preparedNewTitle = newTitle.trim();
+
+    if (!preparedNewTitle) {
+      onDelete(todo.id);
+
+      return;
+    }
+
+    if (preparedNewTitle === todo.title) {
+      setIsEditing(false);
+      setNewTitle(todo.title);
+
+      return;
+    }
+
+    const renemedTodo: Todo = {
+      ...todo,
+      title: preparedNewTitle,
+    };
+
+    onUpdate(renemedTodo)!
+      .then(() => {
+        setIsEditing(false);
+      })
+      .catch(() => {
+        setIsEditing(true);
+        inputRef.current?.focus();
+      });
+  };
+
+  const handleSubmit = (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+
+    handleRename();
+  };
+
+  const handleEscape = (event: KeyboardEvent<HTMLInputElement>) => {
+    if (event.key === 'Escape') {
+      setIsEditing(false);
+      setNewTitle(todo.title);
+    }
+  };
+
+  return (
+    <div data-cy="Todo" className={cn('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={() => onChangeCompleted(todo)}
+        />
+      </label>
+
+      {isEditing ? (
+        <form onSubmit={handleSubmit}>
+          <input
+            ref={inputRef}
+            data-cy="TodoTitleField"
+            type="text"
+            className="todo__title-field"
+            placeholder="Empty todo will be deleted"
+            value={newTitle}
+            onChange={event => setNewTitle(event.target.value.trimStart())}
+            onBlur={handleRename}
+            onKeyUp={handleEscape}
+          />
+        </form>
+      ) : (
+        <>
+          <span
+            data-cy="TodoTitle"
+            className="todo__title"
+            onDoubleClick={() => setIsEditing(true)}
+          >
+            {todo.title}
+          </span>
+
+          <button
+            type="button"
+            className="todo__remove"
+            data-cy="TodoDelete"
+            onClick={() => onDelete(todo.id)}
+          >
+            ×
+          </button>
+        </>
+      )}
+      <div
+        data-cy="TodoLoader"
+        className={cn('modal overlay', {
+          'is-active': !todo.id || loadingTodosIds.includes(todo.id),
+        })}
+      >
+        <div className="modal-background has-background-white-ter" />
+        <div className="loader" />
+      </div>
+    </div>
+  );
+};
diff --git a/src/components/hooks/useTodos.ts b/src/components/hooks/useTodos.ts
new file mode 100644
index 000000000..0f530e4b1
--- /dev/null
+++ b/src/components/hooks/useTodos.ts
@@ -0,0 +1,136 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { Todo } from '../../types/Todo';
+import { ErrorType } from '../../types/ErrorType';
+import { fetchTodos } from '../../utils/fetchTodos';
+import { FilterType } from '../../types/FilterType';
+import { getFilteredTodos } from '../../utils/getFilteredTodo';
+import { todosService } from '../../api/todos';
+
+export const useTodos = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState<ErrorType>(
+    ErrorType.DEFAULT,
+  );
+  const [loadingTodosIds, setLoadingTodosIds] = useState<number[]>([]);
+  const [filter, setFilter] = useState(FilterType.all);
+
+  const timeoutRef = useRef<NodeJS.Timeout | null>(null);
+
+  const activeTodos = useMemo(
+    () => todos.filter(todo => !todo.completed),
+    [todos],
+  );
+  const completedTodos = useMemo(
+    () => todos.filter(todo => todo.completed),
+    [todos],
+  );
+
+  const handleRemoveError = useCallback(() => {
+    setErrorMessage(ErrorType.DEFAULT);
+  }, []);
+
+  const handleErrorMessage = useCallback(
+    (error: ErrorType) => {
+      setErrorMessage(error);
+
+      if (timeoutRef.current) {
+        clearTimeout(timeoutRef.current);
+      }
+
+      timeoutRef.current = setTimeout(() => {
+        handleRemoveError();
+        timeoutRef.current = null;
+      }, 3000);
+    },
+    [handleRemoveError],
+  );
+
+  const handleFilterChange = useCallback(
+    (filterBy: FilterType) => {
+      setFilter(filterBy);
+    },
+    [setFilter],
+  );
+
+  const filteredTodos = useMemo(
+    () => getFilteredTodos(todos, filter),
+    [todos, filter],
+  );
+
+  const deleteTodo = (todoId: number) => {
+    setLoadingTodosIds(current => [...current, todoId]);
+
+    return todosService
+      .delete(todoId)
+      .then(() => {
+        setTodos(current => current.filter(todo => todo.id !== todoId));
+      })
+      .catch(() => {
+        handleErrorMessage(ErrorType.DELETE);
+      })
+      .finally(() => {
+        setLoadingTodosIds(current => current.filter(id => id !== todoId));
+      });
+  };
+
+  useEffect(() => {
+    fetchTodos(setTodos, handleErrorMessage);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  const updateTodo = (todoToUpdate: Todo) => {
+    setLoadingTodosIds(current => [...current, todoToUpdate.id]);
+
+    return todosService
+      .update(todoToUpdate)
+      .then(updatedTodo => {
+        setTodos(current =>
+          current.map(todo => {
+            return updatedTodo.id === todo.id ? updatedTodo : todo;
+          }),
+        );
+      })
+      .catch(error => {
+        handleErrorMessage(ErrorType.UPDATE);
+        throw error;
+      })
+      .finally(() => {
+        setLoadingTodosIds(current =>
+          current.filter(id => id !== todoToUpdate.id),
+        );
+      });
+  };
+
+  const toggleCompleted = (todo: Todo) => {
+    const updatedTodo: Todo = {
+      ...todo,
+      completed: !todo.completed,
+    };
+
+    updateTodo(updatedTodo);
+  };
+
+  const bulkToggleCompleted = () => {
+    if (activeTodos.length > 0) {
+      activeTodos.forEach(todo => toggleCompleted(todo));
+    } else {
+      completedTodos.forEach(todo => toggleCompleted(todo));
+    }
+  };
+
+  return {
+    todos,
+    errorMessage,
+    loadingTodosIds,
+    filteredTodos,
+    filter,
+    setTodos,
+    deleteTodo,
+    updateTodo,
+    toggleCompleted,
+    bulkToggleCompleted,
+    handleErrorMessage,
+    handleRemoveError,
+    handleFilterChange,
+  } as const;
+};
diff --git a/src/types/ErrorType.ts b/src/types/ErrorType.ts
new file mode 100644
index 000000000..2ab397725
--- /dev/null
+++ b/src/types/ErrorType.ts
@@ -0,0 +1,8 @@
+export enum ErrorType {
+  DEFAULT = '',
+  LOAD = 'Unable to load todos',
+  TITLE = 'Title should not be empty',
+  ADD = 'Unable to add a todo',
+  DELETE = 'Unable to delete a todo',
+  UPDATE = 'Unable to update a todo',
+}
diff --git a/src/types/FilterType.ts b/src/types/FilterType.ts
new file mode 100644
index 000000000..f94eb1d8e
--- /dev/null
+++ b/src/types/FilterType.ts
@@ -0,0 +1,5 @@
+export enum FilterType {
+  all = 'All',
+  active = 'Active',
+  completed = 'Completed',
+}
diff --git a/src/types/Todo.ts b/src/types/Todo.ts
new file mode 100644
index 000000000..3f52a5fdd
--- /dev/null
+++ b/src/types/Todo.ts
@@ -0,0 +1,6 @@
+export interface 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 000000000..5be775084
--- /dev/null
+++ b/src/utils/fetchClient.ts
@@ -0,0 +1,42 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
+const BASE_URL = 'https://mate.academy/students-api';
+
+function wait(delay: number) {
+  return new Promise(resolve => {
+    setTimeout(resolve, delay);
+  });
+}
+
+type RequestMethod = 'GET' | 'POST' | 'PATCH' | 'DELETE';
+
+function request<T>(
+  url: string,
+  method: RequestMethod = 'GET',
+  data: any = null,
+): Promise<T> {
+  const options: RequestInit = { method };
+
+  if (data) {
+    options.body = JSON.stringify(data);
+    options.headers = {
+      'Content-Type': 'application/json; charset=UTF-8',
+    };
+  }
+
+  return wait(100)
+    .then(() => fetch(BASE_URL + url, options))
+    .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: any) => request<T>(url, 'POST', data),
+  patch: <T>(url: string, data: any) => request<T>(url, 'PATCH', data),
+  delete: (url: string) => request(url, 'DELETE'),
+};
diff --git a/src/utils/fetchTodos.ts b/src/utils/fetchTodos.ts
new file mode 100644
index 000000000..e3c3e8040
--- /dev/null
+++ b/src/utils/fetchTodos.ts
@@ -0,0 +1,14 @@
+import { Dispatch, SetStateAction } from 'react';
+import { todosService } from '../api/todos';
+import { ErrorType } from '../types/ErrorType';
+import { Todo } from '../types/Todo';
+
+export const fetchTodos = (
+  setTodos: Dispatch<SetStateAction<Todo[]>>,
+  handleErrorMessage: (error: ErrorType) => void,
+) => {
+  todosService
+    .getAll()
+    .then(setTodos)
+    .catch(() => handleErrorMessage(ErrorType.LOAD));
+};
diff --git a/src/utils/getFilteredTodo.ts b/src/utils/getFilteredTodo.ts
new file mode 100644
index 000000000..76fff4c92
--- /dev/null
+++ b/src/utils/getFilteredTodo.ts
@@ -0,0 +1,13 @@
+import { FilterType } from '../types/FilterType';
+import { Todo } from '../types/Todo';
+
+export const getFilteredTodos = (todos: Todo[], filterBy: FilterType) => {
+  switch (filterBy) {
+    case FilterType.completed:
+      return todos.filter(todo => todo.completed === true);
+    case FilterType.active:
+      return todos.filter(todo => todo.completed === false);
+    default:
+      return todos;
+  }
+};