srvx is a universal server framework designed to build HTTP servers using standard Web APIs, specifically the Fetch API, Request, and Response objects. By prioritizing web standards, it provides a consistent development experience across multiple JavaScript runtime environments, including Node.js, Deno, and Bun. Created to simplify server development, it bridges the gap between different runtime-specific HTTP implementations while maintaining high compatibility and performance.

Functionality includes acting as an abstraction layer that allows developers to define a single server entry point capable of running in various environments. It automatically handles the conversion and proxying of runtime-specific request and response objects into standard web objects, enabling portability without sacrificing the unique capabilities of the underlying platforms.

Some of the key features are:

• Cross-Runtime Compatibility: Native support for Node.js, Deno, and Bun using a unified API interface.
• Web Standards Alignment: Utilizes standard fetch, Request, and Response primitives as the primary server handler interface.
• High Performance: Optimized internal proxying for Node.js requests and responses, achieving performance near native speeds.
• Extensible Middleware: Supports plugins and middleware to add reusable logic such as logging, authentication, or static file serving.
• CLI Tooling: Includes a built-in CLI with support for file watching, request logging, and error handling.
• Serverless Ready: Provides specialized adapters for deployment to AWS Lambda, including support for response streaming.
• Developer Experience: Includes features like a ready-to-use development server, straightforward testing, and clear configuration options.

Operationally, srvx works by wrapping the native HTTP server primitives of the target runtime. For example, in Node.js, it translates node:http incoming messages and server responses into the standard Request/Response format, ensuring that developers interact with familiar Web API structures. This is achieved through a lightweight, high-performance proxy system that maintains a single source of truth between the native objects and the web standards, avoiding global patching and maintaining compatibility with existing Node.js ecosystems.

Some common use cases include:

• Cross-Platform Applications: Building HTTP backends that run seamlessly on different server runtimes without code changes.
• Rapid Prototyping: Utilizing the CLI and file watching features to iterate quickly during local development.
• Serverless Migration: Deploying standard web-compatible handlers to AWS Lambda while maintaining the flexibility to run the same code in other environments.
• Performance-Focused Web Services: Leveraging Node.js compatibility to run high-throughput services with minimal overhead.
• Modular Architecture: Creating reusable middleware or plugins that can be shared across different server instances.