Learn what Node.js is and why it's revolutionizing server-side development.
- What is Node.js?
- JavaScript outside the browser
- V8 JavaScript engine
- Event-driven architecture
- Non-blocking I/O
- Node.js vs traditional servers
- Installation and setup
- Node.js ecosystem
Understand the Node.js runtime, global objects, and execution environment.
- Node.js architecture
- Event loop explained
- Global objects
- Process object
- __dirname and __filename
- Command line arguments
- Environment variables
- Exit codes and signals
Explore Node.js built-in modules for file system, HTTP, and more.
- require() function
- File System (fs) module
- Path module
- OS module
- URL module
- QueryString module
- Crypto module
- Util module
Master file and directory operations using Node.js File System module.
- Reading files (sync/async)
- Writing files
- File metadata
- Directory operations
- File watching
- Streams for large files
- File permissions
- Error handling
Build HTTP servers and handle web requests using Node.js HTTP module.
- HTTP module basics
- Creating HTTP servers
- Request and response objects
- Routing basics
- Handling different HTTP methods
- Static file serving
- HTTP status codes
- Headers manipulation
Learn to use NPM for package management and dependency handling.
- NPM introduction
- package.json file
- Installing packages
- Dependencies vs devDependencies
- NPM scripts
- Semantic versioning
- Publishing packages
- NPM security
Master callbacks, promises, and async/await in Node.js applications.
- Callback patterns
- Callback hell problem
- Promises in Node.js
- Promise chaining
- Async/await syntax
- Error handling strategies
- Promisifying callbacks
- Concurrent operations
Understand the event-driven nature of Node.js and create custom events.
- Event-driven programming
- EventEmitter class
- Creating custom events
- Event listeners
- Once vs on methods
- Removing listeners
- Error events
- Event emitter patterns
Handle large data efficiently using Node.js streams and buffers.
- Buffer basics
- Stream concepts
- Readable streams
- Writable streams
- Transform streams
- Duplex streams
- Piping streams
- Stream performance
Build robust web applications using the Express.js framework.
- Express.js introduction
- Setting up Express
- Middleware concept
- Routing in Express
- Request and response handling
- Template engines
- Static files
- Error handling middleware
Create and consume REST APIs using Node.js and Express.
- REST API principles
- Creating API endpoints
- HTTP methods (GET, POST, PUT, DELETE)
- Request validation
- JSON handling
- CORS configuration
- API authentication
- API documentation
Debug Node.js applications and implement testing strategies.
- Debugging techniques
- Node.js debugger
- Console debugging
- Profiling applications
- Unit testing with Jest
- Integration testing
- Test-driven development
- Performance monitoring