Building Fast TypeScript Microservices with Bun and Node.js: Benchmark & Enterprise Stability

Evaluating Bun in Enterprise Production

Bun has emerged as an all-in-one JavaScript runtime featuring native TypeScript execution, an ultra-fast package manager, and a built-in SQLite engine. Built on Apple's WebKit JavaScriptCore rather than Google's V8, Bun excels at rapid cold-starts and low memory overhead.

Benchmark Comparison on API Endpoints

• Cold Boot Time: Bun starts in ~7ms compared to Node.js at ~35ms.
• Package Installation: bun install executes 10x to 25x faster than npm install.
• Node.js Ecosystem Compatibility: Node.js remains superior for complex native C++ addons and enterprise APM tooling (Datadog, New Relic).