NodeJS.md

Node.js and backend

• Internals and concepts
  • Strong and weak sides of node.js u
  • Stateful and stateless servers u
  • Nonblocking I/O and blocking code e
  • Event loop phases u
  • Event loop microtasks and macrotasks u
  • Garbage collection k
  • Node.js LTS schedule u
  • I/O-bound, CPU-bound, memory-bound tasks u
  • Interactive applications (close to real-time) k
• Modularity, layers and dependencies
  • CommonJS modules u
  • ECMAScript modules u
  • Module node:module u
  • Caching in CJS and ESM u
  • Modules as singletons t
  • Contexts and scripts module node:vm k
  • Dependencies: npm, node_modules u
  • Files package.json, package-lock.json u
  • Module-based permissions model k
  • Isolation with modularity u
  • Dependency injection e
  • DI containers u
  • Coupling and cohesion u
  • Framework agnostic approach k
• Environment
  • Command line arguments u
  • Node.js CLI u
  • Process-based permissions
  • Graceful shutdown u
  • Clustering u
  • Watch filesystem changes with --watch k
• Internal API
  • Streams API u
  • Web Streams API
  • Crypto API u
  • Password hashing with crypto.scrypt k
  • Web Crypto API k
  • File system API (sync and async) u
  • Copy folder recursively u
  • Worker threads e
  • Performance hooks k
  • Native fetch and nodejs/undici u
  • async_hooks k
  • AsyncLocalStorage k
  • AsyncResource
  • Deprecated domain API
  • Node.js single executable h
  • SharedArrayBuffer e
  • Module node:worker_threads e
  • Module node:child_process e
  • MessageChannel, MessagePort e
  • BroadcastChannel e
  • Generating crypto random UUID u
  • Module node:url vs new URL u
  • Module node:assert u
  • Internationalization u
  • Blob, File, Buffer, module node:buffer u
  • Module node:zlib k
• Network
  • Endpoint throttling k
  • ALPN
  • SNI callback
  • SSL certificates k
  • Protocol agnostic approach k
  • Fetch API u
  • IncomingMessage
  • HTTP(S) u
  • TCP/SSL h
  • UDP u
  • TLS h
  • Websocket k
  • SSE h
  • HTTP/3 (QUIC) h
  • Long polling u
  • REST u
  • RPC k
  • Routing u
  • DoS k
  • DDoS k
  • XSS k
  • Path traversal k
  • CSRF k
  • DNS k
  • SQL injection u
  • noDelay
  • keep-alive
  • IP sticky sessions k
• Technique and tools
  • Native test runner u
  • Logging u
  • Application configuring u
  • Testing u
  • CI/CD u
  • Readable u
  • Writable u
  • Transform k
  • Back pressure k
  • Buffer u
  • Console u
  • Inspector u
• Data access
  • Data access layer u
  • Repository u
  • Active record u
  • Query builder u
  • Object-Relational Mapping u
  • CRUD u
  • DTO u
• Error handling and debugging
  • Error u
  • error.cause u
  • error.code u
  • error.message u
  • error.stack u
  • Error.captureStackTrace u
  • How to avoid mixins u
  • Uncaught exceptions u
  • Heap dump h
  • Debugging tools u
  • Flame graph u
  • Memory leaks u
  • Resource leaks k
  • Data race u
• Integrations and bindings
  • Native addons k
  • C and C++ addons k
  • Rust addons k
  • Zig addons k
  • NAN (Native Abstractions for Node.js) k
  • Node-API (formerly N-API) k
  • NAPI C and C++ k
  • NAPI Rust k
  • NAPI Zig k
  • Webassembly WAT k
  • Webassembly C and C++ k
  • Webassembly Rust k
  • Webassembly Zig k
  • Webassembly AssemblyScript k
  • Shared memory k
  • V8 binary serialization k