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gogo2/.kiro/specs/websocket-cob-data-fix/requirements.md
Dobromir Popov 2a0f8f5199 integratoin fixes - COB and CNN
2025-07-23 17:33:43 +03:00

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Requirements Document

Introduction

The WebSocket COB Data Fix is needed to address a critical issue in the trading system where WebSocket COB (Change of Basis) data processing is failing with the error 'NoneType' object has no attribute 'append'. This error is occurring for both BTC/USDT and ETH/USDT pairs and is preventing the dashboard from functioning properly. The fix will ensure proper initialization and handling of data structures in the COB data processing pipeline.

Requirements

Requirement 1: Fix WebSocket COB Data Processing

User Story: As a trader, I want the WebSocket COB data processing to work reliably without errors, so that I can monitor market data in real-time and make informed trading decisions.

Acceptance Criteria

  1. WHEN WebSocket COB data is received for any trading pair THEN the system SHALL process it without throwing 'NoneType' object has no attribute 'append' errors
  2. WHEN the dashboard is started THEN all data structures for COB processing SHALL be properly initialized
  3. WHEN COB data is processed THEN the system SHALL handle edge cases such as missing or incomplete data gracefully
  4. WHEN a WebSocket connection is established THEN the system SHALL verify that all required data structures are initialized before processing data
  5. WHEN COB data is being processed THEN the system SHALL log appropriate debug information to help diagnose any issues

Requirement 2: Ensure Data Structure Consistency

User Story: As a system administrator, I want consistent data structures throughout the COB processing pipeline, so that data can flow smoothly between components without errors.

Acceptance Criteria

  1. WHEN the multi_exchange_cob_provider initializes THEN it SHALL properly initialize all required data structures
  2. WHEN the standardized_data_provider receives COB data THEN it SHALL validate the data structure before processing
  3. WHEN COB data is passed between components THEN the system SHALL ensure type consistency
  4. WHEN new COB data arrives THEN the system SHALL update the data structures atomically to prevent race conditions
  5. WHEN a component subscribes to COB updates THEN the system SHALL verify the subscriber can handle the data format

Requirement 3: Improve Error Handling and Recovery

User Story: As a system operator, I want robust error handling and recovery mechanisms in the COB data processing pipeline, so that temporary failures don't cause the entire system to crash.

Acceptance Criteria

  1. WHEN an error occurs in COB data processing THEN the system SHALL log detailed error information
  2. WHEN a WebSocket connection fails THEN the system SHALL attempt to reconnect automatically
  3. WHEN data processing fails THEN the system SHALL continue operation with the last valid data
  4. WHEN the system recovers from an error THEN it SHALL restore normal operation without manual intervention
  5. WHEN multiple consecutive errors occur THEN the system SHALL implement exponential backoff to prevent overwhelming the system