Category: 01. Express Js

For those looking to deepen their understanding, this tutorial explores advanced patterns and practices in Express.js. Topics might include building modular and maintainable codebases using design patterns, implementing service-oriented architectures, and optimizing performance. You’ll also explore how to integrate Express with other technologies and frameworks to build more complex applications.

Testing is an important part of the development process. This tutorial focuses on different testing strategies for Express.js applications, including unit testing, integration testing, and end-to-end testing. You’ll learn about testing frameworks and libraries like Mocha, Chai, and Supertest, and how to write tests for your routes, middleware, and database interactions.

Once your Express.js application is ready, you need to deploy it to a production environment. This tutorial covers the deployment process, including choosing a hosting provider (such as Heroku, AWS, or DigitalOcean), setting up your server environment, and configuring deployment pipelines. You’ll also learn about environment variables, scaling your application, and monitoring performance in production.

Security is a critical aspect of web development. This tutorial explores various techniques for securing your Express.js applications, including setting up HTTPS, implementing authentication and authorization (using libraries like Passport.js), and protecting against common vulnerabilities such as cross-site scripting (XSS) and SQL injection. You’ll also learn about using security-focused middleware like helmet to add additional…

Proper error handling and debugging are essential for maintaining a robust Express.js application. This tutorial provides strategies for handling errors in your application, including using try-catch blocks, creating custom error-handling middleware, and logging errors. You’ll also learn about debugging techniques, such as using console.log, debug modules, and other tools to diagnose and fix issues in…

REST (Representational State Transfer) is an architectural style for designing networked applications. This tutorial covers how to build a RESTful API using Express.js. You’ll learn about REST principles, how to structure your API endpoints, and how to handle HTTP methods and status codes. The tutorial might also touch on best practices for API design, including…

This tutorial focuses on integrating databases with Express.js applications. Depending on the database you choose (e.g., MongoDB, MySQL, PostgreSQL), you’ll learn how to connect your Express server to the database, perform CRUD (Create, Read, Update, Delete) operations, and handle data validation and error handling. You’ll typically see examples using Object-Relational Mappers (ORMs) like Sequelize for…

Middleware functions are a powerful feature in Express.js that allow you to execute code, modify the request and response objects, and end the request-response cycle. This tutorial explains what middleware is, how to use built-in middleware (such as express.json() and express.static()), and how to create your own custom middleware functions. You’ll also learn about error-handling…

Routing is a crucial aspect of any web application. This tutorial delves into how Express.js handles routing, including defining routes, route parameters, and query strings. You’ll learn how to create route handlers for different HTTP methods (GET, POST, PUT, DELETE), and how to structure your routes using route files or modules. The tutorial might also…

This tutorial covers the basics of Express.js, including what it is, why it’s used, and how it fits into the Node.js ecosystem. You’ll start by setting up a basic Express server, learning about its routing capabilities, and handling HTTP requests and responses. The tutorial will typically guide you through creating your first application, such as…