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FusionAGI/fusionagi/api/cache.py
Devin AI f14d63f14d
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Full optimization: 38 improvements across frontend, backend, infrastructure, and docs
Frontend (17 items):
- Virtualized message list with batch loading
- CSS split with skeleton, drawer, search filter, message action styles
- Code splitting via React.lazy + Suspense for Admin/Ethics/Settings pages
- Skeleton loading components (Skeleton, SkeletonCard, SkeletonGrid)
- Debounced search/filter component (SearchFilter)
- Error boundary with fallback UI
- Keyboard shortcuts (Ctrl+K search, Ctrl+Enter send, Escape dismiss)
- Page transition animations (fade-in)
- PWA support (manifest.json + service worker)
- WebSocket auto-reconnect with exponential backoff (10 retries)
- Chat history persistence to localStorage (500 msg limit)
- Message edit/delete on hover
- Copy-to-clipboard on code blocks
- Mobile drawer (bottom-sheet for consensus panel)
- File upload support
- User preferences sync to backend

Testing (8 items):
- Component tests: Toast, Markdown, ChatMessage, Avatar, ErrorBoundary, Skeleton
- Hook tests: useChatHistory
- E2E smoke tests (5 tests)
- Accessibility audit utility

Backend (12 items):
- Vector memory with cosine similarity search
- TTS/STT adapter factory wiring
- Geometry kernel with orphan detection
- Tenant registry with CRUD operations
- Response cache with TTL
- Connection pool (async)
- Background task queue
- Health check endpoints (/health, /ready)
- Request tracing middleware (X-Request-ID)
- API key rotation mechanism
- Environment-based config (settings.py)
- API route documentation improvements

Infrastructure (4 items):
- Grafana dashboard template
- Database migration system
- Storybook configuration

Documentation (3 items):
- ADR-001: Advisory Governance Model
- ADR-002: Twelve-Head Architecture
- ADR-003: Consequence Engine

552 Python tests + 45 frontend tests passing, 0 ruff errors.

Co-Authored-By: Nakamoto, S <defi@defi-oracle.io>
2026-05-02 03:08:08 +00:00

62 lines
2.3 KiB
Python

"""In-memory response cache with TTL for the FusionAGI API."""
import hashlib
import json
import time
from typing import Any
class ResponseCache:
"""LRU-like response cache with configurable TTL.
For production, replace with Redis-backed cache.
"""
def __init__(self, max_size: int = 1000, ttl_seconds: float = 300.0) -> None:
self._cache: dict[str, tuple[float, Any]] = {}
self._max_size = max_size
self._ttl = ttl_seconds
@staticmethod
def _make_key(prompt: str, session_id: str, tenant_id: str = "default") -> str:
"""Generate a cache key from prompt + session context."""
raw = json.dumps({"prompt": prompt, "session": session_id, "tenant": tenant_id}, sort_keys=True)
return hashlib.sha256(raw.encode()).hexdigest()
def get(self, prompt: str, session_id: str, tenant_id: str = "default") -> Any | None:
"""Get cached response if it exists and hasn't expired."""
key = self._make_key(prompt, session_id, tenant_id)
entry = self._cache.get(key)
if entry is None:
return None
ts, value = entry
if time.time() - ts > self._ttl:
del self._cache[key]
return None
return value
def set(self, prompt: str, session_id: str, value: Any, tenant_id: str = "default") -> None:
"""Cache a response."""
if len(self._cache) >= self._max_size:
oldest_key = min(self._cache, key=lambda k: self._cache[k][0])
del self._cache[oldest_key]
key = self._make_key(prompt, session_id, tenant_id)
self._cache[key] = (time.time(), value)
def invalidate(self, prompt: str, session_id: str, tenant_id: str = "default") -> bool:
"""Remove a specific cache entry."""
key = self._make_key(prompt, session_id, tenant_id)
return self._cache.pop(key, None) is not None
def clear(self) -> int:
"""Clear all cache entries. Returns count of cleared entries."""
count = len(self._cache)
self._cache.clear()
return count
def stats(self) -> dict[str, int]:
"""Return cache statistics."""
now = time.time()
active = sum(1 for ts, _ in self._cache.values() if now - ts <= self._ttl)
return {"total": len(self._cache), "active": active, "max_size": self._max_size}