CyberSource REST Authentication SDK

A Node.js helper library for authenticating to the CyberSource REST API. Version 0.0.10 is the current stable release; maintained as part of CyberSource's official SDK suite. Supports HTTP Signature and JWT authentication mechanisms. Enables POST, GET, PUT, DELETE requests with automatic signing. Provides MetaKey support for child merchants. Configurable via cybs.json. Key differentiator: dedicated auth abstraction layer for CyberSource REST API, not a generic HTTP client. Low release cadence (limited updates). Unsuitable for browser usage; Node.js only (v8.11.1+). ESM not supported (CommonJS only).