Implement Comprehensive Logging Mechanism for Web Scraper

Description

Task

Set Up Logging Mechanism for Scraping Activities

Acceptance Criteria

• Integrate a logging library (e.g., winston or log4js)
• Log successful page fetches with timestamp and URL
• Log all network and parsing errors with detailed information
• Configure log levels (info, warn, error) for different types of events
• Ensure logs are human-readable and contain sufficient context

Summary of Work

Overview

This pull request introduces a robust and flexible logging mechanism for the web scraping library, designed to provide comprehensive tracking and monitoring of scraping activities.

Key Changes

• Created advanced logging utility in lib/Logger.js
• Implemented detailed logging for:
  • Successful page fetches
  • Network and parsing errors
• Added file-based and console logging support
• Introduced configurable logging levels

Implementation Details

Logger Capabilities

• Page Fetch Logging:
  • Captures URL, timestamp, and additional metadata
  • Logs successful page retrievals with context
• Error Tracking:
  • Comprehensive error logging for network and parsing errors
  • Includes error type, URL, stack trace, and metadata
• Flexible Configuration:
  • Configurable log levels (debug, info, warn, error)
  • Optional file-based logging
  • Timestamp generation
  • Minimal performance overhead

Acceptance Criteria

✅ Log successful page fetches with timestamp and URL
✅ Log all network and parsing errors with detailed information
✅ Support configurable logging levels
✅ Provide both console and file-based logging
✅ Implement comprehensive error tracking

Testing Approach

• Developed comprehensive unit tests in test/Logger.test.js
• Verified logging functionality across different scenarios
• Tested log level filtering
• Validated both console and file logging mechanisms

Potential Improvements

• Consider adding log rotation for file-based logging
• Explore integration with external logging services

Notes

• Requires Node.js fs module for file logging
• Log files are JSON-formatted for easy parsing
• Configurable log file path and logging behavior

Changes Made

• Created advanced Logger class in lib/Logger.js
• Added methods for page fetch logging
• Implemented detailed error logging
• Added file and console logging support
• Created comprehensive test suite for logging mechanisms

Tests

• Verify page fetch logging captures correct information
• Test network and parsing error logging
• Validate log level filtering
• Check file-based logging functionality
• Ensure minimal performance overhead
• Verify timestamp and metadata inclusion

Signatures

Staking Key

GW6fv5bb2mehGWYEi73Bujp8LwFzknWjYAyH4yHF3S2q: 22YeNjAdgtTzLxLZJifXPjwe9UAhZW5zJsmvWmvB4hdqkRRL9gYXFyjAsK2T5tUJGJzx7c4yqPU17FwmP8ncYDchtGjvTw535xCRd9HE9WKiEE29NjHysjyr1hD8x2yXTrMzZRp37HhN3NBnEfUzBMLTuxwyDCB5Gzw7ssynn4Zy1iio7133biWv8fm3RfeHjduMXTByaEwU1HcM5RNnhkY9zZ41E7VMgxNyhp94XTEpdWzYZNxtvNVEJSHSx1nXnDmoYmEpYYLTuJapqnVtVMzpNjryV4x673se92scieqgPYWZmiFzqnwukKb52VQDQocHGQVbBSsjiCoX2YU4iTTp6MJvbWQZcyL72AzHbmRsPjCSgSsrUgspiLymBkPH8j3M1Ayr2q9gnxHLqNrsCBhapqoLyWYt

Public Key

Ez6dsG3bU9EanAqY7w7E3zrRMA1HbvcfWCdKa9uArpNp: FqcmeQf6pqHriqH9KXYPGDu7EuAmpmeUUqW34grXk32EJeYvG3raty2tcY1NVuXGjaBNTQ1NofszLLN6jGsanGSiQtqaE65mAR3KV4WLgBWyh3EwS39zCqeh14YkWGsWwVMExEvMj5kY2iH2jErgm4oUH8HHMwwbmZuyWZ8fGpBydKoLbrBiAQjHrhiJZP7HprCeYhen84kswNfMhiPwcsFBL4xpH3MHeN1Q8AVtxF27vbfDSJnsuWgeyeiQebi8183EirUkg2gSMGf3ovNmRicNsqKSYKqH3t1EVQnmYbdSmmf4ew3fRk96bEce3NrHDmvYKtmw9qecc4MJMCyhr1p6NxLHVpU8yU5KRzkLz7tCK6UzXJgP6EXK8mYodnf8upvcj8PM1Vj9wQ3WzeXUS6J5xRyAB2t