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Introduction In the modern world of distributed systems, mobile apps, single‑page applications (SPAs), and microservices, the traditional session‑based authentication model—where a server stores a user’s login state in memory or a database and the client presents a session identifier cookie—has become increasingly cumbersome. Network latency, horizontal scaling, and the rise of stateless APIs have driven developers toward token‑based authentication. Tokens enable a client to prove its identity without requiring the server to keep per‑user state, making authentication more scalable, portable, and flexible. ...

Introduction Web applications have come a long way from the static pages of the late 1990s, but the fundamental challenge of identifying a user across multiple HTTP requests remains unchanged. Cookies have been the de‑facto mechanism for persisting state, while modern JavaScript‑heavy front‑ends demand more flexible, API‑centric authentication strategies. Enter the cookie‑swap pattern—a design that blends the simplicity of cookies with the robustness of token‑based authentication. At its core, the pattern exchanges a short‑lived, temporary cookie for a secure authentication token (often a JWT or opaque session identifier) after the user’s credentials have been validated. By doing so, it thwarts classic attacks such as session fixation, cross‑site request forgery (CSRF), and even some cross‑site scripting (XSS) scenarios. ...

Axios npm Hijack: Lessons from the 2026 Supply Chain Nightmare and How to Bulletproof Your Dependencies On March 31, 2026, the JavaScript world woke up to a chilling reality: axios, one of the most downloaded npm packages with over 100 million weekly installs, had been weaponized in a sophisticated supply chain attack. Attackers compromised a maintainer’s npm account, pushed two malicious versions (1.14.1 and 0.30.4), and embedded a stealthy remote access trojan (RAT) that targeted macOS, Windows, and Linux systems.[1][2] This wasn’t a sloppy hack—it was a meticulously planned operation, complete with pre-staged malicious dependencies and self-erasing malware, implicating suspected North Korean actors (UNC1069).[3] ...

Introduction The JavaScript ecosystem has long been dominated by npm (Node Package Manager), the default package manager that ships with Node.js. Over the past few years, however, a new contender has emerged: Bun. Billed as a fast, all‑in‑one runtime, Bun includes its own package manager that promises dramatic speed improvements, a modern API surface, and tighter integration with the underlying runtime. For developers, teams, and organizations that rely heavily on npm for dependency management, the question isn’t simply “Should I try Bun?” but “How does Bun compare to npm across performance, compatibility, workflow, and ecosystem?” This article provides a comprehensive, in‑depth comparison that covers: ...

Table of Contents Introduction What Is Bun? 2.1 Historical Context 2.2 Core Design Goals Architecture Overview 3.1 The Zig Foundation 3.2 V8 Integration vs. Bun’s Own Engine 3.3 Bundler, Task Runner, and Package Manager Getting Started with Bun 4.1 Installation 4.2 “Hello, World!” in Bun Bun as a Runtime: API Compatibility 5.1 Node.js Compatibility Layer 5.2 Web APIs and Fetch Bun’s Built‑In Bundler 6.1 Why a Bundler Matters 6.2 Practical Example: Bundling a React App Package Management with bun install 7.1 Speed Comparisons 7.2 Workspaces and Monorepos Task Runner & Script Execution 8.1 Defining Scripts in bunfig.toml 8.2 Parallel Execution and Caching Performance Benchmarks 9.1 [Startup Time] 9.2 [Throughput & Latency] 9.3 [Real‑World Case Studies] When to Choose Bun Over Node/Deno Limitations and Gotchas Future Roadmap and Community Conclusion Resources Introduction JavaScript has long been the lingua franca of the web, but its ecosystem has evolved dramatically since the early days of Node.js. Developers now juggle runtimes, package managers, bundlers, and task runners—each with its own configuration files, version constraints, and performance quirks. Enter Bun, a newcomer that promises to collapse that fragmented toolchain into a single, ultra‑fast binary. ...