.env.example

# Exchange selection
EXCHANGE=aster                       # Pick aster (default) or grvt

# Aster API credentials
ASTER_API_KEY=
ASTER_API_SECRET=

# Core trading symbol and sizing
TRADE_SYMBOL=BTCUSDT                    # Trading pair symbol
TRADE_AMOUNT=0.001                      # Base order quantity (base asset, e.g. BTC)

# Risk management (USD amounts unless noted)
LOSS_LIMIT=0.03                         # Max loss per trade in USDT before forced close
TRAILING_PROFIT=0.2                     # Trailing stop activation profit (USDT)
TRAILING_CALLBACK_RATE=0.2              # Trailing callback percent (e.g. 0.2 => 0.2%)
PROFIT_LOCK_TRIGGER_USD=0.1             # Start moving base stop once unrealized PnL > this (USDT)
PROFIT_LOCK_OFFSET_USD=0.05             # Base stop offset from entry after trigger (USDT)
BOLLINGER_LENGTH=20                     # SMA window (minutes) used for Bollinger bandwidth
BOLLINGER_STD_MULTIPLIER=2              # Standard deviation multiplier for Bollinger bands
MIN_BOLLINGER_BANDWIDTH=0.001             # Require bandwidth >= this ratio before new entries

# Precision (per-symbol exchange filters)
PRICE_TICK=0.1                          # Price tick size (e.g. BTCUSDT uses 0.1)
QTY_STEP=0.001                          # Quantity step size (e.g. BTC min step 0.001)

# Engine cadence and UI
POLL_INTERVAL_MS=500                    # Trend engine poll interval (ms)
MAX_LOG_ENTRIES=200                     # Max log entries shown in dashboard
KLINE_INTERVAL=1m                       # Kline interval (e.g., 1m/3m/5m)
MAX_CLOSE_SLIPPAGE_PCT=0.05             # Max allowed deviation vs mark when closing (0.05 => 5%)

# Maker-only settings
MAKER_LOSS_LIMIT=0.03                   # Maker loss cap (USDT). Defaults to LOSS_LIMIT if unset
MAKER_PRICE_CHASE=0.3                   # Price chase threshold (USDT)
MAKER_BID_OFFSET=0                      # Bid quote offset from top bid (USDT)
MAKER_ASK_OFFSET=0                      # Ask quote offset from top ask (USDT)
MAKER_REFRESH_INTERVAL_MS=1500          # Maker refresh cadence (ms)
MAKER_MAX_CLOSE_SLIPPAGE_PCT=0.05       # Maker close slippage guard (fallbacks to MAX_CLOSE_SLIPPAGE_PCT)
MAKER_PRICE_TICK=0.1                    # Maker price tick size (defaults to PRICE_TICK)

# GRVT authentication (set when EXCHANGE=grvt)
GRVT_API_KEY=
GRVT_API_SECRET=
GRVT_SUB_ACCOUNT_ID=
GRVT_INSTRUMENT=BTC_USDT_Perp
GRVT_SYMBOL=BTCUSDT
GRVT_ENV=prod

# Optional advanced overrides
# GRVT_COOKIE="gravity=..."            # Pre-provisioned session cookie (auto-refresh uses API key when absent)
# GRVT_ACCOUNT_ID=                      # Populated automatically after login
# GRVT_SIGNER_PATH=./grvt-signer.cjs    # Custom signature provider module