$ show googleapis/google-api-php-client
This is the official Google API Client Library for PHP, providing a unified interface to call Google APIs such as Drive, YouTube, Books, and many others. It handles authentication (API keys, OAuth2 web flow, service accounts), HTTP requests via Guzzle, batching, media uploads (simple, multipart, resumable), retries with exponential backoff, caching, and model serialization. The library is in maintenance mode: critical bugs and security issues are addressed, but no new features are added. It is a mature, well-tested library with extensive documentation and examples. The architecture centers around a `Google\Client` object that manages authentication and HTTP, and generated service classes (from `google/apiclient-services`) that map to specific Google APIs. The codebase is well-structured, uses modern PHP (8.0+), and follows PSR standards. Key reusable components include a standalone URI Template parser and a generic retry runner with exponential backoff.
The LLM identified 2 files worth highlighting for reuse:
Standalone implementation of URI Template (RFC 6570) levels 1-4. Parses template strings and replaces variables with proper encoding and operators. Can be extracted and used in any PHP project needing URI template expansion.
Generic task runner with exponential backoff, jitter, and configurable retry maps. Handles HTTP error codes and cURL error codes. Can be extracted and reused in any PHP project requiring retry logic with backoff.