# Key Features of this Implementation: File Rotation Handling: The FileTailer continuously checks the directory for the newest file matching the pattern. If a new hourly file appears, it automatically switches to it. ## OHLCV Logic: Open: Set when a candle is first created for that timestamp bucket. High/Low: Updated via max() and min(). Close: Updated with every new trade. Buy Volume: Calculated by filtering trades where S == "Buy". SQLite Upsert: Uses ON CONFLICT(timeframe, timestamp) DO UPDATE. This is crucial because trades for the same minute arrive sequentially; we need to update the existing row rather than creating duplicates. ## Robustness: Wrapped in try-except blocks to prevent the service from crashing on a single malformed line. Comprehensive logging to both file and console. Configurable polling interval (default 200ms). # To get the live, unfinished candle data: code Bash ''' echo "live" | nc 127.0.0.1 9999 ''' To get the general health/status: code Bash ''' echo "status" | nc 127.0.0.1 9999 '''