Andrei's Blog

Accelerating JavaScript with WebAssembly: Unlock Native Browser Performance Web applications are becoming more compute-intensive, from image processing to physics simulations. While JavaScript is versatile, sometimes you need near-native speed. Enter WebAssembly (Wasm): a low-level binary format that runs at near-native performance in modern browsers. In this post, we’ll cover why and when to use Wasm,… — read more

Introduction Serverless architectures have revolutionized how we build and deploy scalable applications. By offloading infrastructure management to cloud providers, developers can focus on writing code and shipping features faster. In this post, we’ll explore AWS Lambda and API Gateway, showing you how to create a simple, scalable HTTP API. What Is Serverless Architecture? Serverless doesn’t… — read more

Securing Web Applications: Implementing OAuth 2.0 and OpenID Connect from Scratch In this guide, we’ll walk through building an OAuth 2.0 Authorization Server and adding OpenID Connect support using Node.js and Express. You’ll learn the key endpoints, token creation, and best practices for securing resource servers. Understanding OAuth 2.0 Roles: Resource Owner, Client, Authorization Server,… — read more

Building Cross-Platform Desktop Apps with Tauri and Rust Tauri lets you build tiny, blazing-fast desktop apps using your favorite web framework and a Rust backend. Compared to Electron, Tauri binaries are often 5–10× smaller, more secure, and boot faster. In this post, we’ll walk through setting up a new Tauri project, connecting Rust commands to… — read more

Introduction Angular Reactive Forms provide a powerful and flexible way to handle complex form scenarios. Unlike template-driven forms, Reactive Forms keep your form logic in the component class, making it easier to unit test, debug, and scale. In this post, we’ll cover: Setting up ReactiveFormsModule Building dynamic controls with FormArray Adding built-in and custom validation… — read more

Modern web applications strive for fast, reliable experiences—even when users go offline or experience flaky network connections. Service Workers, a powerful browser feature, enable offline caching, background sync, and more. In this post, we’ll explore common caching strategies, walk through implementation examples, and share debugging tips drawn from real-world coding. What Is a Service Worker?… — read more

Introduction GraphQL has taken the API world by storm, offering a flexible query language and a runtime that lets clients request exactly what they need. In this post, we’ll demystify GraphQL by walking through how to build a scalable, production-ready API using Apollo Server. Whether you’re new to GraphQL or looking to optimize your existing… — read more

Introduction As Angular applications grow, so do their bundle sizes and initial load times. In Angular 15, two powerful techniques—lazy loading and differential loading—help optimize performance by delivering only the code your users need, when they need it. In this post, we’ll explore how to implement and combine both strategies, highlight common pitfalls, and share… — read more

Introduction Security isn’t an afterthought—it’s a core requirement. In this post, we’ll explore practical tips and techniques for hardening your Angular 15 applications. Whether you’re just getting started or have built multiple enterprise apps, you’ll pick up strategies to prevent common vulnerabilities, write safer code, and troubleshoot security issues. 1. Understand Built-In Protections Angular ships… — read more