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Add Log File Separation for Info and Error Levels #283

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avirajsingh7 wants to merge 2 commits into from
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Add Log File Separation for Info and Error Levels #283

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854de69
Add file handler to isolate logs based on info and error level
avirajsingh7 Jul 16, 2025
30f4e3f
Merge branch 'main' into enhancement/logs_segregation
avirajsingh7 Jul 16, 2025
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28 changes: 20 additions & 8 deletions backend/app/core/logger.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,8 @@
LOG_DIR = settings.LOG_DIR
os.makedirs(LOG_DIR, exist_ok=True)

LOG_FILE_PATH = os.path.join(LOG_DIR, "app.log")
APP_LOG_FILE_PATH = os.path.join(LOG_DIR, "app.log")
ERROR_LOG_FILE_PATH = os.path.join(LOG_DIR, "error.log")

LOGGING_LEVEL = logging.INFO
LOGGING_FORMAT = (
Expand All @@ -28,16 +29,27 @@ def filter(self, record: logging.LogRecord) -> bool:
# Formatter
formatter = logging.Formatter(LOGGING_FORMAT)

# Stream handler (console)
# === Stream Handler (Console) ===
stream_handler = logging.StreamHandler()
stream_handler.setLevel(LOGGING_LEVEL)
stream_handler.setFormatter(formatter)
stream_handler.addFilter(CorrelationIdFilter())
logger.addHandler(stream_handler)

# Rotating file handler
file_handler = RotatingFileHandler(
LOG_FILE_PATH, maxBytes=10 * 1024 * 1024, backupCount=5
# === App Log File Handler (INFO and above) ===
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app_file_handler = RotatingFileHandler(
APP_LOG_FILE_PATH, maxBytes=10 * 1024 * 1024, backupCount=5
)
file_handler.setFormatter(formatter)
file_handler.addFilter(CorrelationIdFilter())
logger.addHandler(file_handler)
app_file_handler.setLevel(LOGGING_LEVEL)
app_file_handler.setFormatter(formatter)
app_file_handler.addFilter(CorrelationIdFilter())
logger.addHandler(app_file_handler)

# === Error Log File Handler (ERROR and above) ===
error_file_handler = RotatingFileHandler(
ERROR_LOG_FILE_PATH, maxBytes=10 * 1024 * 1024, backupCount=5
)
error_file_handler.setLevel(logging.ERROR)
error_file_handler.setFormatter(formatter)
error_file_handler.addFilter(CorrelationIdFilter())
logger.addHandler(error_file_handler)