kafka

penal-colony/kafka

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Author	SHA1	Message	Date
Franz Kafka	ebeaeeef21	feat: add CORS and rate limiting middleware CORS: - Configurable allowed origins (wildcard "*" or specific domains) - Handles OPTIONS preflight with configurable methods, headers, max-age - Exposed headers support for browser API access - Env override: CORS_ALLOWED_ORIGINS Rate Limiting: - In-memory per-IP sliding window counter - Configurable request limit and time window - Background goroutine cleans up stale IP entries - HTTP 429 with Retry-After header when exceeded - Extracts real IP from X-Forwarded-For and X-Real-IP (proxy-aware) - Env overrides: RATE_LIMIT_REQUESTS, RATE_LIMIT_WINDOW, RATE_LIMIT_CLEANUP_INTERVAL - Set requests=0 in config to disable Both wired into main.go as middleware chain: rate_limit → cors → handler. Config example updated with [cors] and [rate_limit] sections. Full test coverage for both middleware packages.	2026-03-21 15:54:52 +00:00
Franz Kafka	94322ceff4	feat: Valkey cache for search results - Add internal/cache package using go-redis/v9 (Valkey-compatible) - Cache keys are deterministic SHA-256 hashes of search parameters - Cache wraps the Search() method: check cache → miss → execute → store - Gracefully disabled if Valkey is unreachable or unconfigured - Configurable TTL (default 5m), address, password, and DB index - Environment variable overrides: VALKEY_ADDRESS, VALKEY_PASSWORD, VALKEY_DB, VALKEY_CACHE_TTL - Structured JSON logging via slog throughout cache layer - Refactored service.go: extract executeSearch() from Search() for clarity - Update config.example.toml with [cache] section - Add cache package tests (key generation, nop behavior)	2026-03-21 15:43:47 +00:00
Franz Kafka	8649864971	feat: migrate from env vars to config.toml - Add internal/config package with TOML parsing (BurntSushi/toml) - Create config.example.toml documenting all settings - Update main.go to load config via -config flag (default: config.toml) - Environment variables remain as fallback overrides for backward compat - Config file values are used as defaults; env vars override when set - Add comprehensive tests for file loading, defaults, and env overrides - Add config.toml to .gitignore (secrets stay local)	2026-03-21 14:56:00 +00:00

Author

SHA1

Message

Date

Franz Kafka

ebeaeeef21

feat: add CORS and rate limiting middleware

CORS:
- Configurable allowed origins (wildcard "*" or specific domains)
- Handles OPTIONS preflight with configurable methods, headers, max-age
- Exposed headers support for browser API access
- Env override: CORS_ALLOWED_ORIGINS

Rate Limiting:
- In-memory per-IP sliding window counter
- Configurable request limit and time window
- Background goroutine cleans up stale IP entries
- HTTP 429 with Retry-After header when exceeded
- Extracts real IP from X-Forwarded-For and X-Real-IP (proxy-aware)
- Env overrides: RATE_LIMIT_REQUESTS, RATE_LIMIT_WINDOW, RATE_LIMIT_CLEANUP_INTERVAL
- Set requests=0 in config to disable

Both wired into main.go as middleware chain: rate_limit → cors → handler.
Config example updated with [cors] and [rate_limit] sections.
Full test coverage for both middleware packages.

2026-03-21 15:54:52 +00:00

Franz Kafka

94322ceff4

feat: Valkey cache for search results

- Add internal/cache package using go-redis/v9 (Valkey-compatible)
- Cache keys are deterministic SHA-256 hashes of search parameters
- Cache wraps the Search() method: check cache → miss → execute → store
- Gracefully disabled if Valkey is unreachable or unconfigured
- Configurable TTL (default 5m), address, password, and DB index
- Environment variable overrides: VALKEY_ADDRESS, VALKEY_PASSWORD,
  VALKEY_DB, VALKEY_CACHE_TTL
- Structured JSON logging via slog throughout cache layer
- Refactored service.go: extract executeSearch() from Search() for clarity
- Update config.example.toml with [cache] section
- Add cache package tests (key generation, nop behavior)

2026-03-21 15:43:47 +00:00

Franz Kafka

8649864971

feat: migrate from env vars to config.toml

- Add internal/config package with TOML parsing (BurntSushi/toml)
- Create config.example.toml documenting all settings
- Update main.go to load config via -config flag (default: config.toml)
- Environment variables remain as fallback overrides for backward compat
- Config file values are used as defaults; env vars override when set
- Add comprehensive tests for file loading, defaults, and env overrides
- Add config.toml to .gitignore (secrets stay local)

2026-03-21 14:56:00 +00:00

3 commits