Producer (market-data-service):
- Backpressure: smart drop policy (heartbeats→quotes→trades preserved)
- Heartbeat monitor: synthetic HeartbeatEvent on provider silence
- Graceful shutdown: WS→bus→storage→DB engine cleanup sequence
- Bybit V5 public WS provider (backup for Binance, no API key needed)
- FailoverManager: health-based provider switching with recovery
- NATS output adapter: md.events.{type}.{symbol} for SenpAI
- /bus-stats endpoint for backpressure monitoring
- Dockerfile + docker-compose.node1.yml integration
- 36 tests (parsing + bus + failover), requirements.lock
Consumer (senpai-md-consumer):
- NATSConsumer: subscribe md.events.>, queue group senpai-md, backpressure
- State store: LatestState + RollingWindow (deque, 60s)
- Feature engine: 11 features (mid, spread, VWAP, return, vol, latency)
- Rule-based signals: long/short on return+volume+spread conditions
- Publisher: rate-limited features + signals + alerts to NATS
- HTTP API: /health, /metrics, /state/latest, /features/latest, /stats
- 10 Prometheus metrics
- Dockerfile + docker-compose.senpai.yml
- 41 tests (parsing + state + features + rate-limit), requirements.lock
CI: ruff + pytest + smoke import for both services
Tests: 77 total passed, lint clean
Co-authored-by: Cursor <cursoragent@cursor.com>
56 lines
2.6 KiB
Python
56 lines
2.6 KiB
Python
"""
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Configuration via pydantic-settings.
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All settings from ENV or .env file.
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"""
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from __future__ import annotations
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from pydantic_settings import BaseSettings, SettingsConfigDict
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class Settings(BaseSettings):
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model_config = SettingsConfigDict(
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env_file=".env",
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env_file_encoding="utf-8",
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extra="ignore",
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)
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# ── NATS ──────────────────────────────────────────────────────────
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nats_url: str = "nats://localhost:4222"
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nats_subject: str = "md.events.>"
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nats_queue_group: str = "senpai-md"
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use_jetstream: bool = False
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# ── Internal queue ────────────────────────────────────────────────
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queue_size: int = 50_000
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queue_drop_threshold: float = 0.9 # start dropping at 90%
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# ── Features / signals ────────────────────────────────────────────
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features_enabled: bool = True
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features_pub_rate_hz: float = 10.0 # max publish rate per symbol
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features_pub_subject: str = "senpai.features"
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signals_pub_subject: str = "senpai.signals"
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alerts_pub_subject: str = "senpai.alerts"
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# ── Rolling window ────────────────────────────────────────────────
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rolling_window_seconds: float = 60.0
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# ── Signal rules (rule-based MVP) ─────────────────────────────────
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signal_return_threshold: float = 0.003 # 0.3%
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signal_volume_threshold: float = 1.0 # min volume in 10s
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signal_spread_max_bps: float = 20.0 # max spread in bps
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# ── Alert thresholds ──────────────────────────────────────────────
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alert_latency_ms: float = 1000.0 # alert if p95 latency > this
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alert_gap_seconds: float = 30.0 # alert if no events for N sec
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# ── HTTP ──────────────────────────────────────────────────────────
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http_host: str = "0.0.0.0"
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http_port: int = 8892
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# ── Logging ───────────────────────────────────────────────────────
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log_level: str = "INFO"
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settings = Settings()
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