53 lines
2.5 KiB
Markdown
53 lines
2.5 KiB
Markdown
# Changelog
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All notable changes to fastapi-traffic will be documented here.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [0.2.0] - 2026-02-04
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### Added
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- **Configuration Loader** - Load rate limiting configuration from external files:
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- `ConfigLoader` class for loading `RateLimitConfig` and `GlobalConfig`
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- Support for `.env` files with `FASTAPI_TRAFFIC_*` prefixed variables
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- Support for JSON configuration files
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- Environment variable loading with `load_rate_limit_config_from_env()` and `load_global_config_from_env()`
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- Auto-detection of file format with `load_rate_limit_config()` and `load_global_config()`
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- Custom environment variable prefix support
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- Type validation and comprehensive error handling
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- 47 new tests for configuration loading
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- Example `11_config_loader.py` demonstrating all configuration loading patterns
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- `get_stats()` method to `MemoryBackend` for consistency with `RedisBackend`
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- Comprehensive test suite with 134 tests covering:
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- All five rate limiting algorithms with timing and concurrency tests
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- Backend tests for Memory and SQLite with edge cases
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- Decorator and middleware integration tests
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- Exception handling and configuration validation
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- End-to-end integration tests with FastAPI apps
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- `httpx` and `pytest-asyncio` as dev dependencies for testing
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### Changed
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- Improved documentation in README.md and DEVELOPMENT.md
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- Added `asyncio_default_fixture_loop_scope` config for pytest-asyncio compatibility
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## [0.1.0] - 2025-01-09
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Initial release.
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### Added
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- Core rate limiting with `@rate_limit` decorator
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- Five algorithms: Token Bucket, Sliding Window, Fixed Window, Leaky Bucket, Sliding Window Counter
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- Three storage backends: Memory (default), SQLite (persistent), Redis (distributed)
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- Middleware support for global rate limiting via `RateLimitMiddleware`
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- Dependency injection support with `RateLimitDependency`
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- Custom key extractors for flexible rate limit grouping (by IP, API key, user, etc.)
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- Configurable exemptions with `exempt_when` callback
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- Rate limit headers (`X-RateLimit-Limit`, `X-RateLimit-Remaining`, `X-RateLimit-Reset`)
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- `RateLimitExceeded` exception with `retry_after` and `limit_info`
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- Full async support throughout
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- Strict type hints (pyright/mypy compatible)
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- Redis backend with Lua scripts for atomic operations
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- SQLite backend with WAL mode and connection pooling
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- Memory backend with LRU eviction and TTL cleanup
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