Files
crypto_trading/backend/app/config.py
T
matitos 2ca5032e7e Notification upgrades: lifecycle, configurable levels, summaries
- NOTIFY_LEVELS chooses which event levels are sent (default trade,error).
- NOTIFY_LIFECYCLE sends explicit start/stop messages; the kill switch always
  notifies at error level.
- SUMMARY_INTERVAL_MINUTES sends a periodic portfolio summary (equity, per
  strategy P&L, allocation, halted state) via a background task started with
  the run and stopped on stop/kill/shutdown.
- Wires the new vars plus the go-live vars through both compose files and the
  deploy workflow. Adds tests.
2026-09-22 13:18:02 +00:00

104 lines
3.2 KiB
Python

from __future__ import annotations
from functools import lru_cache
from pathlib import Path
from pydantic import field_validator
from pydantic_settings import BaseSettings, SettingsConfigDict
REPO_ROOT = Path(__file__).resolve().parents[2]
DATA_DIR = REPO_ROOT / "data"
class Settings(BaseSettings):
model_config = SettingsConfigDict(
env_file=(REPO_ROOT / ".env", ".env"),
env_file_encoding="utf-8",
extra="ignore",
)
app_name: str = "Crypto Trader"
env: str = "dev"
host: str = "0.0.0.0"
port: int = 8000
database_url: str = "sqlite:///./data/trader.db"
mode: str = "paper"
exchange: str = "binance"
symbol: str = "BTC/USDT"
timeframe: str = "5m"
poll_interval: float = 5.0
candle_limit: int = 200
starting_balance: float = 10_000.0
fee_bps: float = 10.0
slippage_bps: float = 5.0
exchange_api_key: str = ""
exchange_api_secret: str = ""
exchange_sandbox: bool = False
# --- Go-live gate ---
# Live trading only starts when this is exactly "I UNDERSTAND THE RISK".
# It is deliberately not a boolean: setting MODE=live alone is not enough.
live_confirmation: str = ""
# Refuse to start live below this account size (quote currency).
min_live_balance: float = 100.0
# --- Risk controls (0 disables a limit) ---
# Absolute loss in quote currency since the start of the UTC day.
max_daily_loss: float = 0.0
# Percentage fall from peak equity.
max_drawdown_pct: float = 0.0
# Cap on a single position as a fraction of equity (1.0 = all-in).
max_position_pct: float = 1.0
# Maximum number of new entries per UTC day.
max_trades_per_day: int = 0
# --- Notifications ---
telegram_bot_token: str = ""
telegram_chat_id: str = ""
notify_webhook_url: str = ""
# Event levels to notify on. Defaults to trades and errors; add "info" to
# include start/stop messages, or "warning" for blocked entries.
notify_levels: str = "trade,error"
# Explicit start/stop lifecycle messages (separate from event levels).
notify_lifecycle: bool = True
# Periodic portfolio summary, in minutes (0 disables).
summary_interval_minutes: int = 0
# Optional bearer token required on /api requests (defense-in-depth behind
# the Traefik Basic auth). Empty disables the check.
api_token: str = ""
api_token_header: str = "X-API-Token"
cors_origins: str = "*"
@field_validator("mode")
@classmethod
def _validate_mode(cls, value: str) -> str:
value = value.lower().strip()
if value not in {"paper", "live"}:
raise ValueError("mode must be 'paper' or 'live'")
return value
@property
def cors_origin_list(self) -> list[str]:
return [origin.strip() for origin in self.cors_origins.split(",") if origin.strip()]
@property
def notify_level_set(self) -> set[str]:
return {level.strip().lower() for level in self.notify_levels.split(",") if level.strip()}
@property
def is_live(self) -> bool:
return self.mode == "live"
@lru_cache
def get_settings() -> Settings:
settings = Settings()
DATA_DIR.mkdir(parents=True, exist_ok=True)
return settings