Source Module

📁 src • 14 files

This module serves as the primary source directory for the application, containing essential React components, TypeScript interfaces, and service classes. It provides reusable UI components (Button, Card, Form), user management functionality through the UserService class, and type-safe interfaces for data structures and component props.

The module is designed to support a user-centric application with form handling, API integration, and component-based UI architecture. It includes utility functions for logging and date formatting that are used across components, and maintains a clear separation between presentation components and business logic services.

Exports

UserService

class

Service class for managing user-related API operations, providing methods to fetch and interact with user data from a remote endpoint.

Usage:

const userService = new UserService('http://api.example.com');
const users = await userService.getUsers();

ButtonProps

interface

Type definition for Button component properties, including label text, click handler, optional disabled state, and optional variant styling.

Usage:

const props: ButtonProps = {
  label: 'Click Me',
  onClick: () => console.log('Clicked'),
  disabled: false,
  variant: 'primary'
};

CardProps

interface

Type definition for Card component properties, specifying title, child content, and optional CSS class name for styling customization.

Usage:

const props: CardProps = {
  title: 'Card Title',
  children: <div>Content</div>,
  className: 'custom-card'
};

FormData

interface

Generic interface representing form data as a key-value structure where keys are field names and values are string inputs.

Usage:

const formData: FormData = {
  username: 'john_doe',
  email: 'john@example.com'
};

FormProps

interface

Type definition for Form component properties, defining the callback function to handle form submission with validated data.

Usage:

const props: FormProps = {
  onSubmit: (data) => console.log('Form submitted:', data)
};

User

interface

Type definition representing a user entity with unique identifier, name, and creation timestamp.

Usage:

const user: User = {
  id: 1,
  name: 'John Doe',
  createdAt: new Date()
};

App

function

Main application component that orchestrates user interface, manages modal state, integrates UserService for data fetching, and coordinates user interactions with logging and date formatting utilities.

Usage:

import { App } from './src';

ReactDOM.render(<App />, document.getElementById('root'));

Button

function

Reusable button component that handles click events with integrated logging and date formatting, supporting disabled states and custom labels.

Usage:

import { Button } from './src';

<Button
  label="Submit"
  onClick={() => console.log('Submitted')}
  disabled={false}
/>

Internal Structure

The module is organized into three primary layers: (1) Presentation layer containing React components (App, Button, Card, Form) that handle UI rendering and user interactions, (2) Data layer with TypeScript interfaces (User, FormData, ButtonProps, CardProps, FormProps) providing type safety and contracts, and (3) Service layer featuring the UserService class for API communication. Utility functions (formatDate, log) are shared across components to provide common functionality. The module demonstrates clear separation of concerns with components depending on interfaces for props and services for data operations.

How to Use

To use this module, import the required components, interfaces, or services from the src directory. For UI components, import and use them in JSX with appropriate props matching their interface definitions. For data operations, instantiate the UserService with a base URL and call its methods to interact with user data. Type definitions can be imported to ensure type safety when passing props or handling form data. The App component serves as the main entry point and can be rendered as the root component. All components utilize shared utility functions internally, so no additional setup is required for logging or date formatting functionality.