Build a High Level NextJS Application With B2C & B2E Login With AXIOS,JEST,CYPRESS,MUI

Creating a high-level complex application involves designing a scalable and maintainable folder structure. Below is a suggested folder structure for your Next.js project, along with example code for each file. Please note that this is a guideline, and you might need to adapt it based on the specific requirements and preferences of your project.

Project Structure

/my-nextjs-app
|-- /components
|   |-- /Common
|   |   |-- Layout.js
|   |   |-- Header.js
|   |   |-- Footer.js
|   |-- /Authentication
|   |   |-- B2CLogin.js
|   |   |-- B2ELogin.js
|-- /pages
|   |-- index.js
|   |-- dashboard.js
|-- /api
|   |-- api.js  // Axios setup with interceptors
|-- /utils
|   |-- msalConfig.js
|   |-- authUtils.js
|-- /tests
|   |-- /unit
|   |   |-- B2CLogin.test.js
|   |   |-- B2ELogin.test.js
|   |-- /e2e
|       |-- loginFlow.spec.js
|-- jest.config.js
|-- cypress.json
|-- .env.local
|-- .babelrc
|-- package.json

How To Create NextJS App Using Command

npm create-next-app

Command To Install All the Libraries

Make sure to replace @latest with the actual version numbers if you need to specify versions. Also, adjust the commands based on the specific requirements of your project.

# React and Next.js
npm install react react-dom next

# Azure AD MSAL libraries
npm install @azure/msal-react @azure/msal-browser

# Material-UI
npm install @mui/material @emotion/react @emotion/styled

# Axios for API calls
npm install axios

# Jest for unit testing
npm install --save-dev jest babel-jest @babel/preset-env @babel/preset-react @testing-library/react @testing-library/jest-dom identity-obj-proxy

# Cypress for end-to-end testing
npm install --save-dev cypress

# react-pdf for PDF generation
npm install @react-pdf-viewer

# ag-Grid for data grids
npm install ag-grid-react ag-grid-community

# dotenv for environment variables
npm install dotenv

# Other utility libraries
npm install --save-dev @babel/core @babel/preset-env @babel/preset-react identity-obj-proxy

Code Examples:

/components/Common/Layout.js:

// Layout.js
import React from 'react';
import Header from './Header';
import Footer from './Footer';

const Layout = ({ children }) => {
  return (
    <div>
      <Header />
      <main>{children}</main>
      <Footer />
    </div>
  );
};

export default Layout;

/components/Common/Header.js:

// Header.js
import React from 'react';
import B2CLogin from '../Authentication/B2CLogin';
import B2ELogin from '../Authentication/B2ELogin';

const Header = () => {
  return (
    <header>
      <h1>Your App</h1>
      <B2CLogin />
      <B2ELogin />
    </header>
  );
};

export default Header;

/components/Authentication/B2CLogin.js:

// B2CLogin.js
import React from 'react';
import { useMsal } from '@azure/msal-react';
import { loginRequestB2C } from '../../utils/msalConfig';

const B2CLogin = () => {
  const { instance } = useMsal();

  const handleLogin = () => {
    instance.loginPopup(loginRequestB2C).catch((e) => {
      console.error(`loginPopup failed for B2C: ${e}`);
    });
  };

  return <button onClick={handleLogin}>B2C Login</button>;
};

export default B2CLogin;

/api/api.js:

// api.js
import axios from 'axios';

const api = axios.create({
  baseURL: process.env.NEXT_PUBLIC_API_URL,
});

// Add interceptors, headers, etc.

export default api;

/utils/msalConfig.js:

// msalConfig.js
import { Configuration, PublicClientApplication } from '@azure/msal-browser';

const msalConfig = {
  auth: {
    clientId: process.env.NEXT_PUBLIC_B2C_CLIENT_ID,
    authority: process.env.NEXT_PUBLIC_B2C_AUTHORITY,
    redirectUri: process.env.NEXT_PUBLIC_B2C_REDIRECT_URI,
  },
  cache: {
    cacheLocation: 'sessionStorage',
    storeAuthStateInCookie: false,
  },
};

export const loginRequestB2C = {
  scopes: ['openid', 'profile', 'your_api_scope'],
};

export const msalInstance = new PublicClientApplication(msalConfig);

export default msalConfig;

/utils/authUtils.js:

// authUtils.js
import { useMsal } from '@azure/msal-react';

export const switchMsalProvider = (newInstance) => {
  const { instance, accounts, inProgress } = useMsal();

  if (!inProgress) {
    instance.logoutRedirect({
      accounts,
      mainWindowRedirectUri: '/',
      postLogoutRedirectUri: '/',
    });
    newInstance.loginRedirect();
  }
};

/pages/index.js:

// index.js
import React from 'react';
import Layout from '../components/Common/Layout';

const Home = () => {
  return (
    <Layout>
      <h2>Welcome to Your App</h2>
    </Layout>
  );
};

export default Home;

/pages/dashboard.js:

// dashboard.js
import React from 'react';
import Layout from '../components/Common/Layout';

const Dashboard = () => {
  return (
    <Layout>
      <h2>Dashboard</h2>
      {/* Add components for your dashboard */}
    </

Certainly! Below are example test files for the components and functionality mentioned in the project structure. These tests use Jest for unit testing and Cypress for end-to-end testing.

Jest Unit Test Example

(/tests/unit/B2CLogin.test.js):

// B2CLogin.test.js
import React from 'react';
import { render, screen, fireEvent } from '@testing-library/react';
import '@testing-library/jest-dom';
import B2CLogin from '../../components/Authentication/B2CLogin';

jest.mock('@azure/msal-react', () => ({
  useMsal: jest.fn(() => ({ instance: { loginPopup: jest.fn() } })),
}));

test('renders B2CLogin component', () => {
  render(<B2CLogin />);
  const loginButton = screen.getByText('B2C Login');
  expect(loginButton).toBeInTheDocument();
});

test('calls loginPopup when login button is clicked', () => {
  render(<B2CLogin />);
  const loginButton = screen.getByText('B2C Login');
  fireEvent.click(loginButton);
  expect(useMsal().instance.loginPopup).toHaveBeenCalled();
});

Jest Unit Test Example

(/tests/unit/B2ELogin.test.js):

// B2ELogin.test.js
import React from 'react';
import { render, screen, fireEvent } from '@testing-library/react';
import '@testing-library/jest-dom';
import B2ELogin from '../../components/Authentication/B2ELogin';

jest.mock('@azure/msal-react', () => ({
  useMsal: jest.fn(() => ({ instance: { loginPopup: jest.fn() } })),
}));

test('renders B2ELogin component', () => {
  render(<B2ELogin />);
  const loginButton = screen.getByText('B2E Login');
  expect(loginButton).toBeInTheDocument();
});

test('calls loginPopup when login button is clicked', () => {
  render(<B2ELogin />);
  const loginButton = screen.getByText('B2E Login');
  fireEvent.click(loginButton);
  expect(useMsal().instance.loginPopup).toHaveBeenCalled();
});

Cypress End-to-End Test Example

(/tests/e2e/loginFlow.spec.js):

// loginFlow.spec.js
describe('Login Flow Tests', () => {
  it('should perform B2C login', () => {
    cy.visit('/');
    cy.contains('B2C Login').click();
    // Add assertions for the B2C login flow
  });

  it('should perform B2E login', () => {
    cy.visit('/');
    cy.contains('B2E Login').click();
    // Add assertions for the B2E login flow
  });
});

These are basic examples, and you may need to customize the tests based on your actual component implementations and requirements. Make sure to replace the placeholder assertions with the actual assertions relevant to your application.

jest.config.js:

// jest.config.js
module.exports = {
  testEnvironment: 'jsdom',
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  moduleNameMapper: {
    '\\.(css|less|scss|sass)$': 'identity-obj-proxy',
  },
};

cypress.json:

// cypress.json
{
  "baseUrl": "http://localhost:3000"
}

This assumes that your Next.js development server is running at http://localhost:3000. Adjust the baseUrl accordingly.

.env.local:

# .env.local
NEXT_PUBLIC_B2C_CLIENT_ID=your-b2c-client-id
NEXT_PUBLIC_B2C_AUTHORITY=your-b2c-authority
NEXT_PUBLIC_B2C_REDIRECT_URI=your-b2c-redirect-uri

NEXT_PUBLIC_API_URL=your-api-url

# Add other environment variables as needed

Replace the placeholders (your-b2c-client-id, your-b2c-authority, your-b2c-redirect-uri, your-api-url) with your actual values.

.babelrc:

// .babelrc
{
  "presets": ["next/babel"]
}

package.json:

// package.json
{
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "test": "jest",
    "e2e": "cypress open",
    "e2e:run": "cypress run"
    // Add other scripts as needed
  },
  "dependencies": {
    // Your dependencies
  },
  "devDependencies": {
    // Your devDependencies
  },
  "jest": {
    // Your Jest configuration
  }
}

Make sure to replace placeholders like your-b2c-client-id, your-b2c-authority, your-b2c-redirect-uri, your-api-url with your actual values.

These configuration files provide a basic setup. Depending on your project’s complexity, you might need to adjust and extend these configurations.

Build a High Level NextJS Application With B2C & B2E Login With AXIOS,JEST,CYPRESS,MUI

Project Structure

How To Create NextJS App Using Command

Command To Install All the Libraries

Code Examples:

Jest Unit Test Example

Jest Unit Test Example

Cypress End-to-End Test Example

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Project Structure

How To Create NextJS App Using Command

Command To Install All the Libraries

Code Examples:

Jest Unit Test Example

Jest Unit Test Example

Cypress End-to-End Test Example

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