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About Developer

Khamisi Kibet

Khamisi Kibet

Software Developer

I am a computer scientist, software developer, and YouTuber, as well as the developer of this website, spinncode.com. I create content to help others learn and grow in the field of software development.

If you enjoy my work, please consider supporting me on platforms like Patreon or subscribing to my YouTube channel. I am also open to job opportunities and collaborations in software development. Let's build something amazing together!

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    infor@spinncode.com

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    Nairobi, Kenya
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7 Months ago | 52 views

**Course Title:** Mastering Express.js: Building Scalable Web Applications and APIs **Section Title:** Template Engines and Serving Static Files **Topic:** Build a dynamic web page using a template engine and serve static assets from the public directory.(Lab topic) **Objective:** In this lab topic, you will learn how to build a dynamic web page using a template engine and serve static assets from the public directory. **Materials Needed:** * Node.js and Express.js installed on your machine * A code editor of your choice * A template engine (EJS or Pug) installed in your project * Static assets (CSS, JavaScript, images) in the public directory **Step 1: Setting Up the Project Structure** Before we start, let's set up the project structure. Create a new folder for your project and create the following subfolders: ``` project/ app.js views/ index.ejs public/ css/ style.css js/ script.js images/ image.jpg ``` In this structure, we have: * `app.js`: Our main application file * `views/`: A folder for our template files * `public/`: A folder for our static assets * `css/`, `js/`, and `images/`: Subfolders for different types of static assets **Step 2: Installing the Template Engine** Let's install the EJS template engine. Run the following command in your terminal: ```bash npm install ejs ``` **Step 3: Creating the Template** Create a new file called `index.ejs` in the `views/` folder. Add the following code: ```html <!DOCTYPE html> <html> <head> <title>Dynamic Web Page</title> <link rel="stylesheet" href="/css/style.css"> </head> <body> <h1>Welcome to my dynamic web page!</h1> <img src="/images/image.jpg" alt="An image"> <script src="/js/script.js"></script> </body> </html> ``` This template uses the `<link>` and `<script>` tags to include our static assets. **Step 4: Serving the Template** In our `app.js` file, add the following code: ```javascript const express = require('express'); const path = require('path'); const app = express(); // Set up the view engine app.set('view engine', 'ejs'); app.set('views', path.join(__dirname, 'views')); // Set up the public directory app.use(express.static(path.join(__dirname, 'public'))); // Route to serve the index page app.get('/', (req, res) => { res.render('index'); }); // Start the server app.listen(3000, () => { console.log('Server started on port 3000'); }); ``` In this code, we set up the EJS view engine and the public directory. We also define a route to serve the `index.ejs` template. **Step 5: Testing the Application** Start the server by running `node app.js` in your terminal. Open http://localhost:3000 in your browser to see the dynamic web page in action. **Conclusion:** In this lab topic, you learned how to build a dynamic web page using a template engine and serve static assets from the public directory. You set up a project structure, installed a template engine, created a template, and served it using Express.js. **Key Takeaways:** * Use a template engine to build dynamic web pages * Serve static assets from the public directory * Set up a project structure to organize your code and assets * Use Express.js to serve templates and static assets **Additional Resources:** * [EJS documentation](https://ejs.co/) * [Express.js documentation](https://expressjs.com/) * [Template Engine Comparison](https://www.fullstack.demos/2018/08/28/template-engines-for-express-js-part-1/) **Do You Have Any Questions or Need Further Help?** Please leave a comment below with your questions or issues, and we'll be happy to assist you.
Course

Dynamic Web Pages with Template Engines in Express

**Course Title:** Mastering Express.js: Building Scalable Web Applications and APIs **Section Title:** Template Engines and Serving Static Files **Topic:** Build a dynamic web page using a template engine and serve static assets from the public directory.(Lab topic) **Objective:** In this lab topic, you will learn how to build a dynamic web page using a template engine and serve static assets from the public directory. **Materials Needed:** * Node.js and Express.js installed on your machine * A code editor of your choice * A template engine (EJS or Pug) installed in your project * Static assets (CSS, JavaScript, images) in the public directory **Step 1: Setting Up the Project Structure** Before we start, let's set up the project structure. Create a new folder for your project and create the following subfolders: ``` project/ app.js views/ index.ejs public/ css/ style.css js/ script.js images/ image.jpg ``` In this structure, we have: * `app.js`: Our main application file * `views/`: A folder for our template files * `public/`: A folder for our static assets * `css/`, `js/`, and `images/`: Subfolders for different types of static assets **Step 2: Installing the Template Engine** Let's install the EJS template engine. Run the following command in your terminal: ```bash npm install ejs ``` **Step 3: Creating the Template** Create a new file called `index.ejs` in the `views/` folder. Add the following code: ```html <!DOCTYPE html> <html> <head> <title>Dynamic Web Page</title> <link rel="stylesheet" href="/css/style.css"> </head> <body> <h1>Welcome to my dynamic web page!</h1> <img src="/images/image.jpg" alt="An image"> <script src="/js/script.js"></script> </body> </html> ``` This template uses the `<link>` and `<script>` tags to include our static assets. **Step 4: Serving the Template** In our `app.js` file, add the following code: ```javascript const express = require('express'); const path = require('path'); const app = express(); // Set up the view engine app.set('view engine', 'ejs'); app.set('views', path.join(__dirname, 'views')); // Set up the public directory app.use(express.static(path.join(__dirname, 'public'))); // Route to serve the index page app.get('/', (req, res) => { res.render('index'); }); // Start the server app.listen(3000, () => { console.log('Server started on port 3000'); }); ``` In this code, we set up the EJS view engine and the public directory. We also define a route to serve the `index.ejs` template. **Step 5: Testing the Application** Start the server by running `node app.js` in your terminal. Open http://localhost:3000 in your browser to see the dynamic web page in action. **Conclusion:** In this lab topic, you learned how to build a dynamic web page using a template engine and serve static assets from the public directory. You set up a project structure, installed a template engine, created a template, and served it using Express.js. **Key Takeaways:** * Use a template engine to build dynamic web pages * Serve static assets from the public directory * Set up a project structure to organize your code and assets * Use Express.js to serve templates and static assets **Additional Resources:** * [EJS documentation](https://ejs.co/) * [Express.js documentation](https://expressjs.com/) * [Template Engine Comparison](https://www.fullstack.demos/2018/08/28/template-engines-for-express-js-part-1/) **Do You Have Any Questions or Need Further Help?** Please leave a comment below with your questions or issues, and we'll be happy to assist you.

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Mastering Express.js: Building Scalable Web Applications and APIs

Course

Objectives

  • Understand the fundamentals of Node.js and Express.js framework.
  • Build web applications and RESTful APIs using Express.js.
  • Implement middleware for error handling, logging, and authentication.
  • Master database integration with MongoDB and Mongoose.
  • Apply best practices for security, testing, and version control in Express.js applications.
  • Deploy Express.js applications to cloud platforms (Heroku, AWS, etc.).
  • Leverage modern development tools and practices such as Docker, Git, and CI/CD.

Introduction to Node.js and Express.js

  • Overview of Node.js and its event-driven architecture.
  • Understanding the Express.js framework and its benefits.
  • Setting up a Node.js development environment.
  • Basic routing and handling HTTP requests in Express.js.
  • Lab: Set up a Node.js and Express.js development environment and create a simple web server with basic routes.

Routing and Middleware

  • Understanding routing in Express.js (parameterized routes, query strings).
  • Using middleware to handle requests and responses.
  • Error handling middleware and logging requests.
  • Creating custom middleware functions.
  • Lab: Implement routing and middleware in an Express.js application to handle different HTTP methods and error scenarios.

Template Engines and Serving Static Files

  • Integrating template engines (EJS, Pug) with Express.js.
  • Rendering dynamic content using templates.
  • Serving static files (CSS, JavaScript, images) in Express.js applications.
  • Using the `public` directory for static assets.
  • Lab: Build a dynamic web page using a template engine and serve static assets from the public directory.

Working with Databases: MongoDB and Mongoose

  • Introduction to NoSQL databases and MongoDB.
  • Setting up MongoDB and Mongoose for data modeling.
  • CRUD operations with Mongoose (Create, Read, Update, Delete).
  • Defining schemas and validating data.
  • Lab: Create a RESTful API using Express.js and MongoDB with Mongoose for managing a resource (e.g., books, users).

Authentication and Authorization

  • Understanding authentication vs. authorization.
  • Implementing user authentication using Passport.js.
  • Creating and managing user sessions.
  • Role-based access control and securing routes.
  • Lab: Develop a user authentication system using Passport.js, including registration, login, and role management.

Building RESTful APIs

  • Principles of RESTful API design.
  • Creating RESTful routes and controllers in Express.js.
  • Handling API requests and responses (JSON format).
  • Implementing versioning for APIs.
  • Lab: Build a fully functional RESTful API with Express.js that includes all CRUD operations for a specific resource.

Security Best Practices in Express.js

  • Common security vulnerabilities (XSS, CSRF, SQL Injection).
  • Using Helmet.js for setting HTTP headers to secure Express apps.
  • Implementing rate limiting and input validation.
  • Best practices for securing sensitive data (password hashing, JWT).
  • Lab: Secure the RESTful API created in previous labs by implementing security measures and best practices.

Testing and Debugging Express Applications

  • Importance of testing in modern web development.
  • Introduction to testing frameworks (Mocha, Chai, Jest).
  • Writing unit and integration tests for Express.js applications.
  • Debugging techniques and tools.
  • Lab: Write unit tests for routes and controllers in an Express.js application and debug using built-in tools.

File Uploads and Handling Form Data

  • Handling form submissions and processing data.
  • Implementing file uploads using Multer middleware.
  • Validating uploaded files and managing storage.
  • Handling multipart/form-data.
  • Lab: Build a file upload feature in an Express.js application that processes and stores files securely.

Real-Time Applications with WebSockets

  • Introduction to WebSockets and real-time communication.
  • Integrating Socket.io with Express.js for real-time updates.
  • Building chat applications and live notifications.
  • Handling events and broadcasting messages.
  • Lab: Develop a simple chat application using Express.js and Socket.io to enable real-time communication between users.

Deployment and Continuous Integration

  • Preparing an Express.js application for production.
  • Introduction to cloud deployment options (Heroku, AWS, DigitalOcean).
  • Setting up a CI/CD pipeline with GitHub Actions.
  • Monitoring and maintaining deployed applications.
  • Lab: Deploy an Express.js application to a cloud platform and configure a CI/CD pipeline for automatic deployments.

Final Project and Advanced Topics

  • Review of advanced topics: Caching strategies, performance optimization.
  • Scaling Express applications (load balancing, microservices).
  • Final project guidelines and expectations.
  • Q&A session and troubleshooting for final projects.
  • Lab: Begin working on the final project that integrates learned concepts into a full-stack Express.js application.

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