การจำกัดอัตราการใช้งานและโควตา

import requests import time class CachedClient: def __init__(self, api_key, cache_ttl=60): self.api_key = api_key self.cache_ttl = cache_ttl self.cache = {} self.cache_time = {} def get_whale_positions(self, symbol): cache_key = f"whales:{symbol}" now = time.time() # Return cached data if still fresh if cache_key in self.cache: age = now - self.cache_time[cache_key] if age < self.cache_ttl: print(f"Served from cache (age: {age:.1f}s)") return self.cache[cache_key] # Fetch fresh data response = requests.get( f"https://api.smartmoneyapi.com/v1/whales/events?symbol={symbol}", headers={"Authorization": f"Bearer {self.api_key}"} ) data = response.json() self.cache[cache_key] = data self.cache_time[cache_key] = now return data # Usage: Cache for 60 seconds client = CachedClient("sk_live_abc123xyz789", cache_ttl=60) whales1 = client.get_whale_positions("BTCUSDT") # API call whales2 = client.get_whale_positions("BTCUSDT") # From cache whales3 = client.get_whale_positions("BTCUSDT") # From cache

import requests import time def request_with_retry(url, api_key, max_retries=5): for attempt in range(max_retries): try: response = requests.get( url, headers={"Authorization": f"Bearer {api_key}"}, timeout=10 ) if response.status_code == 200: return response.json() elif response.status_code == 429: # Rate limited - back off exponentially wait_time = min(2 ** attempt, 300) # Max 5 minutes reset_time = response.headers.get("X-Requests-Reset-ISO") print(f"Rate limited. Retrying in {wait_time}s (resets at {reset_time})") time.sleep(wait_time) elif response.status_code >= 500: # Server error - retry wait_time = 2 ** attempt print(f"Server error {response.status_code}. Retrying in {wait_time}s") time.sleep(wait_time) else: # Other error - don't retry raise Exception(f"HTTP {response.status_code}: {response.text}") except requests.exceptions.Timeout: wait_time = 2 ** attempt print(f"Timeout. Retrying in {wait_time}s") time.sleep(wait_time) raise Exception("Max retries exceeded") # Usage data = request_with_retry( "https://api.smartmoneyapi.com/v1/whales/events", "sk_live_abc123xyz789" ) print(data)