Release v1.52.0

🚀 Features

🔹 Redis PubSub Support

GoFr now supports Redis PubSub as a messaging backend, providing seamless integration with Redis for publish-subscribe patterns in microservices.

Supports both Redis Channels (traditional PubSub) and Redis Streams modes
Configurable via REDIS_PUBSUB_MODE environment variable (defaults to streams)
Redis Streams features:
- Consumer groups for load balancing and message distribution
- Automatic consumer group creation with MKSTREAM support
- Configurable PEL (Pending Entry List) ratio for balancing pending vs new messages (default: 0.7, i.e., 70% PEL, 30% new messages)
- Stream length management with MaxLen configuration
- Automatic message acknowledgment handling
Redis Channels features:
- Traditional PubSub channel support for simple messaging patterns
- Automatic channel creation on first publish/subscribe
Separate database support via REDIS_PUBSUB_DB to prevent keyspace collisions (defaults to database 15)
Configurable buffer size, query timeout, and query limits
Automatic connection monitoring and resubscription on reconnection
Full observability with metrics, logging, and distributed tracing
Graceful error handling with permanent failure detection

🔹 HTTP Router Path Normalization

Router now normalizes paths before routing to handle edge cases with double slashes and malformed paths.

🔹 JSON Encoding Error Handling for NaN Values

Fixed a bug where math.NaN() values in responses caused incorrect error handling. The responder now properly handles JSON encoding failures by:

Detecting encoding errors before writing response headers
Returning appropriate 500 Internal Server Error status code for encoding failures

🔹 Grafana Dashboard Configuration

Fixed Grafana dashboard configuration to ensure proper metrics visualization and monitoring capabilities.