Express.js Web Server: 68 Essential Things Beginners Must Know

English | September 20, 2024 | ASIN: B0DHPHLQNG | 222 pages | EPUB | 0.59 Mb

Learn the core concepts of building a web server with Express.js, a minimal and flexible framework for Node.js.This guide covers everything from setting up your first server to handling routes, middleware, and APIs.Understand how to process requests and responses efficiently with Express.js tools like app.get(), req.params, res.json(), and more.Master advanced techniques such as error handling, static file serving, and chaining middleware for cleaner, scalable code.With step-by-step examples, this book is ideal for beginners looking to build robust web applications.Set up configurations with environment variables, automate with nodemon, and create optimized workflows with essential Express.js features.Dive into 68 key insights to start mastering Express.js and take your web development skills to the next level.Perfect for those new to backend development or looking to enhance their Node.js expertise.

《Index》 ・Introduction to Express.js: A Minimal and Flexible Framework ・Building APIs and Web Applications with Express.js ・Middleware functions are executed in sequence in Express.js ・Middleware functions have access to request, response, and next middleware ・How to Use app.use() to Add Middleware ・Handling Routes in Express.js ・Basic Routing in Express: Using app.get(), app.post(), app.put(), and app.delete() ・Accessing Route Parameters Using req.params ・Accessing Query String Parameters with req.query ・Accessing Form Data from POST Requests with req.body ・Handling JSON Payloads with express.json() Middleware ・Sending Responses with res.send() ・Sending a JSON response with res.json() ・Serving static files with express.static() ・Error Handling Middleware: Four Parameters Explained ・Middleware and Route Order: Why It Matters ・Chaining Route Handlers for Cleaner Code ・Using Environment Variables for Configuration ・Setting up an Express server with app.listen() ・Using nodemon to auto-restart server on file changes ...etc

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