7af375f8c0
Add structured logging throughout the backend: - logging_config.py: Centralized logging configuration with colored output - main.py: Enhanced startup logging showing initialization progress - init_blockchain.py: Detailed blockchain initialization logging - services.py: Election creation logging Logging features: - Emoji prefixes for different log levels (INFO, DEBUG, ERROR, etc.) - Color-coded output for better visibility - Timestamp and module information - Exception stack traces on errors - Separate loggers for different modules This helps debug: - Backend startup sequence - Database initialization - Blockchain election recording - Service operations - Configuration issues
94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
"""
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Logging configuration for E-Voting Backend.
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Provides structured logging with appropriate levels for different modules.
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"""
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import logging
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import sys
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from datetime import datetime
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# Create custom formatter with emojis and colors
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class ColoredFormatter(logging.Formatter):
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"""Custom formatter with colors and emojis for better visibility"""
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# ANSI color codes
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COLORS = {
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'DEBUG': '\033[36m', # Cyan
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'INFO': '\033[32m', # Green
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'WARNING': '\033[33m', # Yellow
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'ERROR': '\033[31m', # Red
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'CRITICAL': '\033[35m', # Magenta
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}
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RESET = '\033[0m'
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# Emoji prefixes
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EMOJIS = {
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'DEBUG': '🔍',
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'INFO': 'ℹ️ ',
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'WARNING': '⚠️ ',
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'ERROR': '❌',
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'CRITICAL': '🔥',
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}
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def format(self, record):
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# Add color and emoji
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levelname = record.levelname
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emoji = self.EMOJIS.get(levelname, '')
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color = self.COLORS.get(levelname, '')
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# Format message
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timestamp = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
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formatted = f"{color}{emoji} {timestamp} - {record.name} - {levelname} - {record.getMessage()}{self.RESET}"
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# Add exception info if present
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if record.exc_info:
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formatted += f"\n{self.format_exception(record.exc_info)}"
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return formatted
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def format_exception(self, exc_info):
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"""Format exception info"""
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import traceback
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return '\n'.join(traceback.format_exception(*exc_info))
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def setup_logging(level=logging.INFO):
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"""
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Setup logging for the entire application.
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Args:
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level: Logging level (default: logging.INFO)
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"""
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# Remove existing handlers
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root_logger = logging.getLogger()
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for handler in root_logger.handlers[:]:
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root_logger.removeHandler(handler)
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# Create console handler with colored formatter
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console_handler = logging.StreamHandler(sys.stdout)
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console_handler.setLevel(level)
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formatter = ColoredFormatter()
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console_handler.setFormatter(formatter)
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# Add handler to root logger
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root_logger.addHandler(console_handler)
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root_logger.setLevel(level)
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# Set specific loggers
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logging.getLogger('backend').setLevel(level)
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logging.getLogger('backend.blockchain_elections').setLevel(logging.DEBUG)
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logging.getLogger('backend.init_blockchain').setLevel(logging.INFO)
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logging.getLogger('backend.services').setLevel(logging.INFO)
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logging.getLogger('backend.main').setLevel(logging.INFO)
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# Suppress verbose third-party logging
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logging.getLogger('sqlalchemy.engine').setLevel(logging.WARNING)
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logging.getLogger('sqlalchemy.pool').setLevel(logging.WARNING)
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logging.getLogger('uvicorn').setLevel(logging.INFO)
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logging.getLogger('uvicorn.access').setLevel(logging.WARNING)
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# Setup logging on import
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setup_logging()
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