Commit Graph

12 Commits

Author SHA1 Message Date
lukaszraczylo c2c75d69c0 perf+coverage: optimisation pass + coverage push to ≥70%
Performance / resource usage:
- circuit_breaker_metrics: fix data race on failCounters map (RWMutex + double-checked locking)
- server.go: drop user_id and op_name metric labels (Prometheus cardinality bound); de-duplicate extractUserInfo
- graphql.go: gate runtime.ReadMemStats per-request behind ENABLE_ALLOCATION_TRACKING flag (default off)
- graphql.go: collapse two-pass AST scan into single pass; lower-case once
- sanitization.go: cache compiled redaction regexes per pattern via sync.Map; hoist inner constants to pkg vars
- proxy.go: hoist connection/timeout substrings to pkg vars; sentinel errors for static error paths; drop dead Headers map alloc
- metrics_aggregator.go: log-field allocation guarded by Logger.IsLevelEnabled
- logging/logger.go: add IsLevelEnabled helper
- lru_cache.go: 16-shard sharding, FNV-1a routing (concurrent throughput +22%)
- cache/memory/lru_memory_cache.go: gzip compress/decompress moved outside mu.Lock
- rps_tracker.go: RWMutex+uint64 -> atomic.Uint64
- retry_budget.go: drop unused mutex
- api.go: bannedUsersIDs map+RWMutex -> sync.Map (+ snapshot/replace helpers)
- tracing/tracing.go: pkg-level constSpanAttrs, copy-then-append in StartSpanWithAttributes
- admin_dashboard.go: handleStatsWebSocket reuses bytes.Buffer + json.Encoder per connection

Build / runtime:
- Makefile: -ldflags="-s -w" -trimpath, CGO_ENABLED=0 for build (=1 for test recipes)
- Dockerfile + Dockerfile.goreleaser: ENV GOMEMLIMIT=512MiB
- main.go: blank import go.uber.org/automaxprocs (cgroup-aware GOMAXPROCS)
- main.go: PPROF_PORT env var wires net/http/pprof on 127.0.0.1 only with full server timeouts
- README.md: env-var docs + metric-label docs updated; cardinality note

Test coverage push (per package):
- main 51.2% -> 74.7%
- cache 66.3% -> 93.7%
- cache/redis 45.5% -> 98.2%
- tracing 66.7% -> 72.9%
- (cache/memory 91.6%, logging 91.9%, monitoring 77.6%, pkg/pools 100% unchanged)

New test files: coverage_micro_test, coverage_extras_test, server_handlers_test,
api_health_test, admin_dashboard_cluster_test, metrics_aggregator_test, concerns_test,
cache/cache_coverage_test, cache/redis/redis_coverage_test, tracing/tracing_coverage_test.

Bug fix: connection_resilience_test.go TestIntegratedHealthManagement.health_manager_startup
was sync.Once-coupled to InitializeBackendHealth and panicked when another test (e.g. via
parseConfig) had already triggered Once. Use NewBackendHealthManager directly.
2026-04-19 19:49:24 +01:00
lukaszraczylo 3aa83d4480 chore(security,refactor): extract sanitization and improve code quality (#41)
* chore(security,refactor): extract sanitization and improve code quality

- [x] Extract sanitization functions to dedicated sanitization.go module
- [x] Add comprehensive golangci-lint v2 configuration with security rules
- [x] Replace interface{} with any type throughout codebase
- [x] Add admin API authentication security warning
- [x] Extract WebSocket and stats streaming constants
- [x] Add best-effort error handling comments for resource cleanup
- [x] Expand sensitive field patterns for improved PII redaction
- [x] Simplify safety checks and remove redundant nil validations
- [x] Improve test coverage for password field redaction patterns

* refactor: replace interface{} with any type alias

- [x] Replace all `map[string]interface{}` with `map[string]any`
- [x] Replace all `interface{}` with `any` in function signatures and type definitions
- [x] Update sync.Pool New function returns from `interface{}` to `any`
- [x] Add package documentation comments to 8 package files
- [x] Update type assertions and casts to work with `any` type
2026-01-17 00:04:12 +00:00
lukaszraczylo da8ec5f21d Add LRU cache support. 2025-12-03 10:22:33 +00:00
lukaszraczylo cedee416a8 improvements mid may 2025 (#24)
* General improvements and bug fixes.

* Improve tests coverage.

* fixup! Improve tests coverage.

* Update README.md with latest changes.

* Fix the uint32

* Resolve issue with race condition for logging.

* fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* Fix the test of the rate limiter

* Add default ratelimit.json file

* Update dependencies.

* Significant refactor.

* fixup! Significant refactor.

* fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! fixup! fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025

* fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! Merge remote-tracking branch 'origin/main' into improvements-mid-apr-2025
2025-09-30 18:27:33 +01:00
lukaszraczylo 1b7890f322 Gofmt the codebase. 2025-02-26 00:47:41 +00:00
lukaszraczylo 66c8fef24d Improve the test coverage 2025-02-26 00:44:14 +00:00
lukaszraczylo 2ab78d35ce Configuration Management:
Optimized the getDetailsFromEnv function to reduce redundant lookups and improve type handling
Added direct environment variable access for better performance

Memory Cache Optimization:

Implemented a size-based compression threshold (1KB) to avoid compressing small payloads
Added cache size limits (10,000 entries) to prevent memory leaks
Implemented efficient eviction strategies for the oldest entries
Added atomic counter for thread-safe cache size tracking
Improved cleanup routines with GC triggering for large caches

Proxy Implementation:

Refactored the proxy code into smaller, focused functions for better maintainability
Optimized gzip handling for better performance
Improved error handling and logging
Enhanced tracing integration

GraphQL Processing:

Optimized introspection query checking with fast-path returns
Improved object pool usage
Added detailed comments for better code understanding
Split complex functions into smaller, more focused ones
Fixed test compatibility issues with introspection checking

Request Processing:

Refactored the request processing logic into smaller, focused functions
Separated user extraction, caching, and request handling for better maintainability
Improved error handling and response generation

Tracing Enhancements:

Added better span context management
Implemented custom attributes for more detailed tracing
Added sampling configuration to reduce overhead
Improved resource attribution with host and process information
Added timeout handling for tracing operations

Application Lifecycle:

Implemented graceful shutdown with proper signal handling
Added goroutine management with wait groups
Improved startup sequence with better error handling
Added timeout handling for shutdown operations
2025-02-25 23:34:39 +00:00
lukaszraczylo b10a28bf52 General code optimisations. (#16)
* General code optimisations.
2024-06-28 12:31:01 +01:00
lukaszraczylo 61d7a45d00 Update cache library, use miniredis for testing, add additional benchmarks. (#14)
Update cache library,
Update logging library,
use miniredis for testing, add additional benchmarks.
2024-06-19 23:10:36 +01:00
lukaszraczylo de31912d2f increase error handling and mutex encapsulation (#12)
* increase error handling and mutex encapsulation

* undo method rename for now

* set cant return error

---------

Co-authored-by: Chris Clayton <chris.clayton@contino.io>
2024-06-15 10:21:49 +01:00
lukaszraczylo e5b3eff1cd Adjust field alignment. 2024-06-12 12:07:22 +01:00
lukaszraczylo 12e0294945 Add distibuted cache with Redis 2024-06-11 11:35:50 +01:00