c762564d40
- Fix 71 invalid-syntax files (class-body newline-broken assignments) - Add from/None chain to 307 B904 raise-without-from sites - Add B008 ignore to ruff.toml (already in pyproject.toml) - Noqa F401 on __init__.py re-exports (137 sites) - Noqa E402 on deferred imports (63 sites) - Bulk-add stdlib/FastAPI/project imports for F821 (127 sites) - Replace ×→x, –→-, …→... in docstrings (4093 chars) - Manual refactor of 5 SIM103/SIM116 patterns Tests: 791 passed (66 deselected due to pre-existing Redis issues in test_rag.py) Co-authored-by: opencode <opencode@rugmunch.io>
300 lines
10 KiB
Python
300 lines
10 KiB
Python
"""
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Aggressive Caching Shield - Solana Tracker Data API Client
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Multi-key load balanced with per-key rate limiting and quota tracking.
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Keys configured via env vars: SOLANA_TRACKER_PRIMARY_HOST, SOLANA_TRACKER_SECONDARY_HOST, SOLANA_TRACKER_API_KEY
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Load balancing: round-robin with 429 fallback to next key
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"""
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import asyncio
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import hashlib
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import json
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import logging
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import os
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import time
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from dataclasses import dataclass
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import httpx
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logger = logging.getLogger("solana_tracker")
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# Key configs
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KEY_CONFIGS = [
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{
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"name": "primary",
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"base_url": "https://noble-flint-3959.secure.data.solanatracker.io",
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"api_key": None,
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"rate_rps": 3.0,
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"monthly_quota": 2500,
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},
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{
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"name": "secondary",
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"base_url": "https://data.solanatracker.io",
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"api_key": os.getenv("SOLANA_TRACKER_API_KEY", ""),
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"rate_rps": 3.0,
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"monthly_quota": 2500,
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},
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]
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# TTL tiers (seconds) - cached aggressively to maximize free tier
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TTL_PRICE = 8
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TTL_TOKEN = 30
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TTL_WALLET = 20
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TTL_TRADES = 20
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TTL_OHLCV = 60
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TTL_SEARCH = 45
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TTL_LATEST = 10
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TTL_TRENDING = 180
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TTL_HOLDERS = 60
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@dataclass
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class KeyState:
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"""Per-key usage and health tracking."""
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name: str
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base_url: str
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api_key: str | None
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rate_rps: float
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monthly_quota: int
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calls_this_month: int = 0
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month_key: str = ""
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tokens: float = 0.0
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last_refill: float = 0.0
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rate_limited_until: float = 0.0
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consecutive_429s: int = 0
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http: httpx.AsyncClient | None = None
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def __post_init__(self):
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self.tokens = self.rate_rps
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self.last_refill = time.monotonic()
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self.month_key = time.strftime("%Y-%m")
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def can_use(self, now: float) -> bool:
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if now < self.rate_limited_until:
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return False
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current_month = time.strftime("%Y-%m")
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if current_month != self.month_key:
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self.month_key = current_month
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self.calls_this_month = 0
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return self.calls_this_month < self.monthly_quota
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def refill(self, now: float):
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elapsed = now - self.last_refill
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self.tokens = min(self.rate_rps, self.tokens + elapsed * self.rate_rps)
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self.last_refill = now
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def mark_used(self):
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self.tokens -= 1.0
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self.calls_this_month += 1
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def mark_429(self, now: float):
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self.consecutive_429s += 1
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backoff = min(60, 5 * (2 ** min(self.consecutive_429s, 4)))
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self.rate_limited_until = now + backoff
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def mark_success(self):
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self.consecutive_429s = 0
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self.rate_limited_until = 0.0
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class SolanaTrackerClient:
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"""Multi-key load balanced client for Solana Tracker Data API.
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Round-robins between PRIMARY (secure endpoint) and SECONDARY (generic).
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On 429, falls through to next key with exponential backoff.
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"""
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def __init__(self):
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self._keys = [KeyState(**cfg) for cfg in KEY_CONFIGS]
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self._key_index = 0
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self._key_lock = asyncio.Lock()
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self._l1: dict[str, tuple] = {}
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self._l1_lock = asyncio.Lock()
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self.cache_hits = 0
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self.cache_misses = 0
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def _cache_key(self, path: str, params: dict) -> str:
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raw = f"{path}:{json.dumps(params or {}, sort_keys=True, default=str)}"
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return hashlib.sha256(raw.encode()).hexdigest()[:24]
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async def _cache_get(self, key: str) -> dict | None:
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async with self._l1_lock:
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entry = self._l1.get(key)
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if entry:
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expiry, data = entry
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if time.monotonic() < expiry:
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self.cache_hits += 1
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return data
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del self._l1[key]
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self.cache_misses += 1
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return None
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async def _cache_set(self, key: str, data: dict, ttl: int):
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async with self._l1_lock:
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self._l1[key] = (time.monotonic() + ttl, data)
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if len(self._l1) > 1024:
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oldest = min(self._l1.keys(), key=lambda k: self._l1[k][0])
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del self._l1[oldest]
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async def _get_http(self, key: KeyState) -> httpx.AsyncClient:
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if key.http is None:
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headers = {"Accept": "application/json"}
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if key.api_key:
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headers["x-api-key"] = key.api_key
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key.http = httpx.AsyncClient(timeout=15.0, headers=headers)
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return key.http
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async def _pick_key(self) -> KeyState | None:
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async with self._key_lock:
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now = time.monotonic()
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for _ in range(len(self._keys)):
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key = self._keys[self._key_index]
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self._key_index = (self._key_index + 1) % len(self._keys)
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key.refill(now)
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if not key.can_use(now):
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continue
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if key.tokens < 1.0:
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continue
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key.mark_used()
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return key
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return None
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async def _call(self, path: str, params: dict | None = None, ttl: int = TTL_TOKEN) -> dict | None:
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cache_key = self._cache_key(path, params or {})
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cached = await self._cache_get(cache_key)
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if cached is not None:
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return cached
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for _attempt in range(min(len(self._keys), 2)):
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key = await self._pick_key()
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if key is None:
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logger.warning("ST: all keys exhausted")
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return None
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http = await self._get_http(key)
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url = f"{key.base_url}{path}"
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now = time.monotonic()
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try:
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if params:
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clean = {k: v for k, v in params.items() if v is not None}
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resp = await http.get(url, params=clean)
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else:
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resp = await http.get(url)
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if resp.status_code == 200:
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key.mark_success()
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data = resp.json()
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await self._cache_set(cache_key, data, ttl)
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return data
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elif resp.status_code == 429:
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key.mark_429(now)
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logger.debug(f"ST 429 on {key.name}, rotating")
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continue
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elif resp.status_code == 401:
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logger.error(f"ST 401 on {key.name}, key invalid")
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key.rate_limited_until = now + 3600
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continue
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else:
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logger.warning(f"ST {resp.status_code} on {key.name}: {resp.text[:100]}")
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return None
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except httpx.TimeoutException:
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logger.debug(f"ST timeout on {key.name}, rotating")
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continue
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except Exception as e:
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logger.warning(f"ST error on {key.name}: {e}")
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continue
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logger.warning(f"ST: all attempts failed for {path}")
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return None
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# Token Endpoints
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async def get_price(self, mint: str) -> dict | None:
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return await self._call("/price", {"token": mint}, TTL_PRICE)
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async def get_token(self, mint: str) -> dict | None:
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return await self._call(f"/tokens/{mint}", None, TTL_TOKEN)
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async def search_tokens(self, **kwargs) -> dict | None:
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params = {k: v for k, v in kwargs.items() if v is not None}
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params.setdefault("limit", 20)
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return await self._call("/search", params, TTL_SEARCH)
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async def get_tokens_latest(self, limit: int = 20) -> dict | None:
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return await self._call("/tokens/latest", {"limit": min(limit, 100)}, TTL_LATEST)
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async def get_tokens_trending(self, limit: int = 20) -> dict | None:
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return await self._call("/tokens/trending", {"limit": min(limit, 100)}, TTL_TRENDING)
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async def get_token_holders(self, mint: str, limit: int = 20) -> dict | None:
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return await self._call(f"/tokens/{mint}/holders", {"limit": min(limit, 50)}, TTL_HOLDERS)
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async def get_token_trades(self, mint: str, limit: int = 20, cursor: str | None = None) -> dict | None:
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params = {"limit": min(limit, 100)}
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if cursor:
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params["cursor"] = cursor
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return await self._call(f"/trades/{mint}", params, TTL_TRADES)
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# Wallet
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async def get_wallet(self, address: str) -> dict | None:
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return await self._call(f"/wallet/{address}", None, TTL_WALLET)
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async def get_wallet_trades(self, address: str, limit: int = 20, cursor: str | None = None) -> dict | None:
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params = {"limit": min(limit, 100)}
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if cursor:
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params["cursor"] = cursor
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return await self._call(f"/wallet/{address}/trades", params, TTL_TRADES)
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async def get_wallet_pnl(self, address: str) -> dict | None:
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return await self._call(f"/wallet/{address}/pnl", None, TTL_WALLET)
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# Charts
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async def get_ohlcv(self, mint: str, timeframe: str = "1H", limit: int = 100) -> dict | None:
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return await self._call(
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f"/ohlcv/{mint}",
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{
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"timeframe": timeframe,
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"limit": min(limit, 500),
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},
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TTL_OHLCV,
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)
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# Stats
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def stats(self) -> dict:
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now = time.monotonic()
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keys_info = []
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for k in self._keys:
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k.refill(now)
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keys_info.append(
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{
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"name": k.name,
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"tokens": round(k.tokens, 1),
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"calls_this_month": k.calls_this_month,
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"quota_remaining": k.monthly_quota - k.calls_this_month,
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"rate_limited": k.rate_limited_until > now,
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"consecutive_429s": k.consecutive_429s,
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}
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)
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def _get():
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return {
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"keys": keys_info,
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"cache_hits": self.cache_hits,
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"cache_misses": self.cache_misses,
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"l1_size": len(self._l1),
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"combined_quota": sum(k.monthly_quota for k in self._keys),
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"combined_used": sum(k.calls_this_month for k in self._keys),
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}
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return _get()
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_client: SolanaTrackerClient | None = None
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def get_solana_tracker() -> SolanaTrackerClient:
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global _client
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if _client is None:
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_client = SolanaTrackerClient()
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return _client
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