diff --git a/src/App.tsx b/src/App.tsx
index a9a9bb4c53..d31701ee31 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,27 +1,124 @@
 import './App.scss';
 
-// import usersFromServer from './api/users';
-// import todosFromServer from './api/todos';
+import usersFromServer from './api/users';
+import todosFromServer from './api/todos';
+import { TodoList } from './components/TodoList';
+import React, { useState } from 'react';
+import { Todo, User } from './components/utils/types';
 
 export const App = () => {
+  const getUserById = (userId: number): User | null =>
+    usersFromServer.find(user => user.id === userId) || null;
+
+  const initialTodos: Todo[] = todosFromServer.map(todo => ({
+    ...todo,
+    user: getUserById(todo.userId),
+  }));
+
+  const [userList] = useState(usersFromServer);
+  const [todosList, setTodosList] = useState(initialTodos);
+
+  const [titleInput, setTitleInput] = useState('');
+  const [userSelected, setUserSelected] = useState('');
+
+  const [titleInputError, setTitleInputError] = useState(false);
+  const [userSelectError, setUserSelectError] = useState(false);
+
+  const receiveTheMaxId = () => {
+    const todoIds = todosList.map(todo => todo.id);
+
+    return Math.max(...todoIds) + 1;
+  };
+
+  const createNewTodo = (): Todo => ({
+    id: receiveTheMaxId(),
+    title: titleInput.trim(),
+    completed: false,
+    userId: +userSelected,
+    user: getUserById(+userSelected),
+  });
+
+  const handleSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    let isValid = true;
+
+    if (titleInput === '') {
+      setTitleInputError(true);
+      isValid = false;
+    } else {
+      setTitleInputError(false);
+    }
+
+    if (userSelected === '') {
+      setUserSelectError(true);
+      isValid = false;
+    } else {
+      setUserSelectError(false);
+    }
+
+    if (isValid) {
+      setTodosList(prevTodos => [...prevTodos, createNewTodo()]);
+      setTitleInput('');
+      setUserSelected('');
+    }
+  };
+
+  const handleSelectChange = (event: React.ChangeEvent<HTMLSelectElement>) => {
+    setUserSelected(event.target.value);
+
+    if (event.target.value !== '') {
+      setUserSelectError(false);
+    }
+  };
+
+  const validateTitleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const checkValues = event.target.value.replace(/[^a-zA-Zа-яА-Я0-9 ]/g, '');
+
+    setTitleInput(checkValues);
+
+    if (checkValues !== '') {
+      setTitleInputError(false);
+    }
+  };
+
   return (
     <div className="App">
       <h1>Add todo form</h1>
 
-      <form action="/api/todos" method="POST">
+      <form action="/api/todos" method="POST" onSubmit={handleSubmit}>
         <div className="field">
-          <input type="text" data-cy="titleInput" />
-          <span className="error">Please enter a title</span>
+          <input
+            type="text"
+            data-cy="titleInput"
+            value={titleInput}
+            placeholder="Enter a title"
+            onChange={validateTitleChange}
+          />
+          {titleInputError && (
+            <span className="error">Please enter a title</span>
+          )}
         </div>
 
         <div className="field">
-          <select data-cy="userSelect">
-            <option value="0" disabled>
+          <select
+            data-cy="userSelect"
+            value={userSelected}
+            onChange={handleSelectChange}
+          >
+            <option value="" disabled={userSelected !== ''}>
               Choose a user
             </option>
+            {userList.map(user => (
+              <option value={user.id} key={user.id}>
+                {user.name}
+              </option>
+            ))}
           </select>
 
-          <span className="error">Please choose a user</span>
+          {userSelectError && (
+            <span className="error">Please choose a user</span>
+          )}
         </div>
 
         <button type="submit" data-cy="submitButton">
@@ -29,33 +126,7 @@ export const App = () => {
         </button>
       </form>
 
-      <section className="TodoList">
-        <article data-id="1" className="TodoInfo TodoInfo--completed">
-          <h2 className="TodoInfo__title">delectus aut autem</h2>
-
-          <a className="UserInfo" href="mailto:Sincere@april.biz">
-            Leanne Graham
-          </a>
-        </article>
-
-        <article data-id="15" className="TodoInfo TodoInfo--completed">
-          <h2 className="TodoInfo__title">delectus aut autem</h2>
-
-          <a className="UserInfo" href="mailto:Sincere@april.biz">
-            Leanne Graham
-          </a>
-        </article>
-
-        <article data-id="2" className="TodoInfo">
-          <h2 className="TodoInfo__title">
-            quis ut nam facilis et officia qui
-          </h2>
-
-          <a className="UserInfo" href="mailto:Julianne.OConner@kory.org">
-            Patricia Lebsack
-          </a>
-        </article>
-      </section>
+      <TodoList todos={todosList} />
     </div>
   );
 };
diff --git a/src/components/TodoInfo/TodoInfo.tsx b/src/components/TodoInfo/TodoInfo.tsx
index d164511fa8..e4f8937ed1 100644
--- a/src/components/TodoInfo/TodoInfo.tsx
+++ b/src/components/TodoInfo/TodoInfo.tsx
@@ -1 +1,22 @@
-export const TodoInfo = () => {};
+import classNames from 'classnames';
+import { Todo } from '../utils/types';
+import { UserInfo } from '../UserInfo';
+
+type Props = {
+  todo: Todo;
+};
+
+export const TodoInfo: React.FC<Props> = ({ todo }) => {
+  return (
+    <article
+      data-id={todo.id}
+      className={classNames('TodoInfo', {
+        'TodoInfo--completed': todo.completed,
+      })}
+    >
+      <h2 className="TodoInfo__title">{todo.title}</h2>
+
+      <UserInfo user={todo.user} />
+    </article>
+  );
+};
diff --git a/src/components/TodoList/TodoList.tsx b/src/components/TodoList/TodoList.tsx
index c12fae07c0..ba19d730af 100644
--- a/src/components/TodoList/TodoList.tsx
+++ b/src/components/TodoList/TodoList.tsx
@@ -1 +1,16 @@
-export const TodoList = () => {};
+import { TodoInfo } from '../TodoInfo';
+import { Todo } from '../utils/types';
+
+type Props = {
+  todos: Todo[];
+};
+
+export const TodoList: React.FC<Props> = ({ todos }) => {
+  return (
+    <section className="TodoList">
+      {todos.map(todo => (
+        <TodoInfo todo={todo} key={todo.id} />
+      ))}
+    </section>
+  );
+};
diff --git a/src/components/UserInfo/UserInfo.tsx b/src/components/UserInfo/UserInfo.tsx
index f7bf0410ec..07813444c3 100644
--- a/src/components/UserInfo/UserInfo.tsx
+++ b/src/components/UserInfo/UserInfo.tsx
@@ -1 +1,17 @@
-export const UserInfo = () => {};
+import { User } from '../utils/types';
+
+type Props = {
+  user: User | null;
+};
+
+export const UserInfo: React.FC<Props> = ({ user }) => {
+  if (!user) {
+    return null;
+  }
+
+  return (
+    <a className="UserInfo" href={`mailto:${user.email}`}>
+      {user.name}
+    </a>
+  );
+};
diff --git a/src/components/utils/types.tsx b/src/components/utils/types.tsx
new file mode 100644
index 0000000000..08d478c276
--- /dev/null
+++ b/src/components/utils/types.tsx
@@ -0,0 +1,19 @@
+export type User = {
+  id: number;
+  name: string;
+  username: string;
+  email: string;
+};
+
+export type Todo = {
+  id: number;
+  title: string;
+  completed: boolean;
+  userId: number;
+  user: User | null;
+};
+
+export type TodoListProps = {
+  users: User[];
+  todos: Todo[];
+};