feat: setup logging and logger object

src/backend/langflow/utils/logger.py

@@ -0,0 +1,23 @@
+import logging
+from pathlib import Path
+
+logger = logging.getLogger("langflow")
+
+
+def configure(log_level: str = "INFO", log_file: Path = None):  # type: ignore
+    log_format = "%(asctime)s - %(levelname)s - %(message)s"
+    log_level = getattr(logging, log_level.upper(), logging.INFO)
+
+    logging.basicConfig(level=log_level, format=log_format)
+
+    if log_file:
+        log_file = Path(log_file)
+        log_file.parent.mkdir(parents=True, exist_ok=True)
+
+        file_handler = logging.FileHandler(log_file)
+        file_handler.setFormatter(logging.Formatter(log_format))
+        logger.addHandler(file_handler)
+
+    logger.info(f"Logger set up with log level: {log_level}")
+    if log_file:
+        logger.info(f"Log file: {log_file}")