Website: expressjs.com
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Express.js is a web application framework for Node.js, designed for building web applications and APIs. It is open-source and has a strong community of developers contributing to its ecosystem. Express.js is known for its minimalist and flexible approach, allowing developers to create web applications and APIs with ease. Key Features: Routing: Express.js provides a simple and effective way to define routes for handling different HTTP requests (GET, POST, PUT, DELETE, etc.). Middleware: It has a middleware system that allows you to execute code before handling a request, enabling tasks such as authentication, logging, and error handling. Template Engines: Express.js supports various template engines like Pug, EJS, and Handlebars, making it easy to generate HTML dynamically. Error Handling: It provides built-in error handling mechanisms and allows you to define custom error handlers. Static File Serving: Express.js can serve static files like images, CSS, and JavaScript. RESTful API Development: It is commonly used for building RESTful APIs due to its simplicity and support for handling JSON data. Database Integration: Express.js can be integrated with various databases, such as MongoDB, MySQL, and PostgreSQL, through middleware and libraries. Scalability: It is designed to be lightweight and unopinionated, allowing for easy scalability and customization based on project requirements. Community and Ecosystem: Express.js has a large and active community, with a wide range of third-party middleware and libraries available. Express Generator: It provides a command-line tool called Express Generator for quickly setting up an Express.js application with a predefined directory structure. Overall, Express.js is a popular choice for web development with Node.js, especially for building APIs and web applications that require a flexible and minimalist framework."