shinypayload 0.3.0
New Features
Custom Response Handling
-
response_handlerparameter - Configure custom response content, status codes, and headers per endpoint -
payload_response_config()- Set response handlers dynamically at runtime -
payload_response_status()- Query configured response handlers - Responses can now return computed values, custom HTTP status codes, and additional headers
Complete Multipart Form Data Support
- Full RFC 2046 multipart boundary parsing implementation
- File upload extraction with filename, content-type, and size metadata
- Form field extraction from multipart requests
-
payload_upload_config()- Configure maximum upload size limits -
payload_upload_status()- Query current upload configuration
Cross-Origin Resource Sharing (CORS)
-
payload_cors_config()- Enable and configure CORS with allowed origins, methods, headers -
payload_cors_status()- Query current CORS configuration - Automatic OPTIONS preflight request handling
- Support for credentials and configurable max-age caching
Session-Scoped Payloads
-
scopeparameter inpayload_last()- Choose between “global” and “session” scope - Session-isolated data storage for per-user workflows
- Backward compatible with existing global scope behavior
Request Correlation IDs
- Automatic generation or extraction of
X-Request-IDheader - Correlation ID included in all log entries for distributed tracing
- Correlation ID returned in responses for request tracking
- Filter logs and history by correlation ID
Built-in Health Check Endpoint
-
payload_health_config()- Configure health check path and enable/disable -
payload_health_status()- Query health check configuration - Returns system status, uptime, endpoint count, queue status, memory usage
- Compatible with Kubernetes liveness/readiness probes
JSON Schema Validation
-
payload_schema_config()- Configure JSON Schema for payload validation -
payload_schema_status()- Query configured schemas - Automatic 400 Bad Request responses for invalid payloads
- Detailed validation errors in debug mode
- Requires optional
jsonvalidatepackage
Asynchronous Processing Pipeline
-
payload_queue_config()- Enable and configure async queue processing -
payload_queue()- Enqueue payloads for deferred processing -
payload_queue_process()- Process queued items with custom handler -
payload_queue_status()- Query queue statistics -
payload_queue_clear()- Clear pending queue items -
payload_queue_dead_letter()- Access failed processing items - Priority-based queue ordering (high/normal/low)
- Configurable retry attempts with dead letter queue
Improvements
- Enhanced logging with correlation ID support
- Better error responses with correlation IDs and debug details
- Improved multipart content-type detection
- Request counter and uptime tracking in system status
- Extended
payload_system_status()with CORS, health, and queue information
shinypayload 0.2.0
Major New Features
🚀 Enhanced HTTP Methods Support
-
payload_methods()- Support for multiple HTTP methods (POST, PUT, PATCH, DELETE) on different endpoints - Individual token authentication per endpoint
- Automatic status code handling (201 for POST, 200 for others)
📚 Payload History & Persistence
-
payload_history()- Retrieve historical payloads with filtering and limits -
payload_history_config()- Configure retention policies (time and count-based) -
payload_history_stats()- Get statistics and memory usage information -
payload_history_clear()- Cleanup historical data - Automatic retention management with configurable policies
🛡️ Advanced Security Features
- HMAC Signature Validation - Webhook security with SHA256/SHA1 support
- IP Whitelisting/Blacklisting - Network-level access control
- Rate Limiting - Configurable request rate limiting per IP
-
payload_security_config()- Centralized security configuration -
payload_security_status()- Security status monitoring - Enhanced error responses with proper HTTP status codes
🔧 Enhanced Data Processing
- XML Content Support - Automatic XML parsing with xml2 integration
- Multipart Form Data - Basic file upload handling and boundary detection
- Transformation Hooks - Custom data processing pipeline
-
payload_data_config()- Configure data processing and validation - Enhanced content type detection and parsing
- Better error handling for malformed data
⚡ Advanced Reactive Features
-
payload_stream()- Real-time streaming with filtering and transformation -
payload_conditional()- Conditional reactives with custom conditions -
payload_batch()- Batch processing with timeout and size limits - High-performance polling with configurable intervals
- Memory-efficient stream management
🔍 Developer Experience Improvements
- Debug Mode - Comprehensive logging and error reporting
-
payload_debug_config()- Development and production settings -
payload_logs()- Query and filter log entries -
payload_system_status()- Complete system diagnostics - Enhanced error messages with detailed context
- Console logging in debug mode
- Memory usage monitoring and reporting
Backward Compatibility
- All existing v0.1.0 functions remain unchanged
- No breaking changes to existing APIs
- Seamless upgrade path from v0.1.0
shinypayload 0.1.0
CRAN release: 2025-08-29
New Features
- Initial release of shinypayload package 🎉
- Same-port POST handling - Accept POST requests on the same port as your Shiny UI
- Reactive data integration - POST data automatically becomes reactive values
- Multiple authentication methods - Query parameters, headers, and authorization tokens
- Multi-format support - JSON, form data, and query parameters
- Cross-session data sharing - Data shared across all connected clients
Core Functions
-
payload_ui()- Wrap Shiny UI to handle POST requests -
payload_last()- Get reactive with latest POST data -
params_get()- Extract URL query parameters -
payload_endpoint_url()- Generate absolute URLs for endpoints
Documentation & Examples
- Comprehensive README with quick start guide
-
4 complete examples demonstrating different use cases:
- Basic functionality demo
- Real-time data monitoring
- Form submission handling
- Integration with existing apps
- Professional documentation with roxygen2
- Security best practices guide