feat: Fix issues #761, #762, #763, #764 - Database Pooler and API Gateway Security enhancements#850
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emdevelopa merged 1 commit intoMay 29, 2026
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…elopa#763, emdevelopa#764 Issue emdevelopa#761: Enhanced error recovery for Database Pooler - Added circuit breaker pattern to prevent cascading failures - Implemented health check function with connectivity testing - Added pool warming on startup to reduce cold start latency - Enhanced error logging with structured context - Circuit breaker states: CLOSED, OPEN, HALF_OPEN with auto-recovery Issue emdevelopa#762: Conducted security audit on Database Pooler - Created comprehensive security audit documentation - Verified connection string security - Confirmed appropriate connection limits and timeouts - Validated SSL/TLS configuration - Assessed error handling and information disclosure - Security rating: SECURE - No critical vulnerabilities Issue emdevelopa#763: Implemented rate limiting for API Gateway Security - Token bucket rate limiter with Redis backend - Multiple rate limit tiers (per IP, per API key, per endpoint) - Standard HTTP headers (X-RateLimit-*, Retry-After) - Graceful degradation (fail open on Redis errors) - Configurable capacity and refill rates Issue emdevelopa#764: Cryptographic signature verification (Already implemented) - Verified existing HMAC-SHA256 implementation - Added key rotation support for zero-downtime updates - Enhanced logging for signature verification - Confirmed timing-safe comparison and replay protection Closes emdevelopa#761 Closes emdevelopa#762 Closes emdevelopa#763 Closes emdevelopa#764
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This PR addresses four backend system optimization issues to enhance security, error recovery, and rate limiting:
Issues Addressed
Closes #761
Closes #762
Closes #763
Closes #764
Changes
Issue #761: Enhanced Error Recovery for Database Pooler ✅
Backend system optimization for Database Pooler module
Issue #762: Security Audit on Database Pooler ✅
Comprehensive security audit conducted
Issue #763: Rate Limiting for API Gateway Security ✅
Backend system optimization for API Gateway Security
Issue #764: Cryptographic Signature Verification ✅
Already Implemented - Verification and Enhancements
Files Changed
Testing
All issues tested and verified:
Breaking Changes
None. All changes are backward compatible.
Compliance