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#!/usr/bin/env python3
"""
External API Clients - Complete Collection
Direct HTTP clients for all external cryptocurrency data sources
NO WEBSOCKET - Only HTTP REST requests
"""
import logging
import httpx
import feedparser
from typing import Dict, Any, List, Optional
from datetime import datetime
import os
import json
logger = logging.getLogger(__name__)
class AlternativeMeClient:
"""
Alternative.me API Client
Fetches Fear & Greed Index for crypto markets
"""
def __init__(self):
self.base_url = "https://api.alternative.me"
self.timeout = 10.0
async def get_fear_greed_index(self, limit: int = 1) -> Dict[str, Any]:
"""
Get Fear & Greed Index
Args:
limit: Number of historical data points (default: 1 for current)
Returns:
Fear & Greed Index data
"""
try:
async with httpx.AsyncClient(timeout=self.timeout) as client:
response = await client.get(
f"{self.base_url}/fng/",
params={"limit": limit}
)
response.raise_for_status()
data = response.json()
# Transform to standard format
results = []
for item in data.get("data", []):
results.append({
"value": int(item.get("value", 0)),
"value_classification": item.get("value_classification", "neutral"),
"timestamp": int(item.get("timestamp", 0)),
"time_until_update": item.get("time_until_update"),
"source": "alternative.me"
})
logger.info(f"✅ Alternative.me: Fetched Fear & Greed Index")
return {
"success": True,
"data": results,
"metadata": data.get("metadata", {}),
"source": "alternative.me",
"timestamp": datetime.utcnow().isoformat()
}
except Exception as e:
logger.error(f"❌ Alternative.me API failed: {e}")
raise Exception(f"Failed to fetch Fear & Greed Index: {str(e)}")
class RedditClient:
"""
Reddit API Client
Fetches cryptocurrency posts from Reddit
"""
def __init__(self):
self.base_url = "https://www.reddit.com"
self.timeout = 15.0
self.user_agent = "CryptoDataHub/1.0"
async def get_top_posts(
self,
subreddit: str = "cryptocurrency",
time_filter: str = "day",
limit: int = 25
) -> Dict[str, Any]:
"""
Get top posts from a subreddit
Args:
subreddit: Subreddit name (default: cryptocurrency)
time_filter: Time filter (hour, day, week, month, year, all)
limit: Number of posts
Returns:
Top Reddit posts
"""
try:
async with httpx.AsyncClient(timeout=self.timeout) as client:
response = await client.get(
f"{self.base_url}/r/{subreddit}/top.json",
params={"t": time_filter, "limit": limit},
headers={"User-Agent": self.user_agent}
)
response.raise_for_status()
data = response.json()
# Transform to standard format
posts = []
for child in data.get("data", {}).get("children", []):
post_data = child.get("data", {})
posts.append({
"id": post_data.get("id"),
"title": post_data.get("title"),
"author": post_data.get("author"),
"score": post_data.get("score", 0),
"upvote_ratio": post_data.get("upvote_ratio", 0),
"num_comments": post_data.get("num_comments", 0),
"url": post_data.get("url"),
"permalink": f"{self.base_url}{post_data.get('permalink', '')}",
"created_utc": int(post_data.get("created_utc", 0)),
"selftext": post_data.get("selftext", "")[:500], # Limit text
"subreddit": subreddit,
"source": "reddit"
})
logger.info(f"✅ Reddit: Fetched {len(posts)} posts from r/{subreddit}")
return {
"success": True,
"data": posts,
"subreddit": subreddit,
"time_filter": time_filter,
"count": len(posts),
"source": "reddit",
"timestamp": datetime.utcnow().isoformat()
}
except Exception as e:
logger.error(f"❌ Reddit API failed: {e}")
raise Exception(f"Failed to fetch Reddit posts: {str(e)}")
async def get_new_posts(
self,
subreddit: str = "cryptocurrency",
limit: int = 25
) -> Dict[str, Any]:
"""
Get new posts from a subreddit
Args:
subreddit: Subreddit name
limit: Number of posts
Returns:
New Reddit posts
"""
try:
async with httpx.AsyncClient(timeout=self.timeout) as client:
response = await client.get(
f"{self.base_url}/r/{subreddit}/new.json",
params={"limit": limit},
headers={"User-Agent": self.user_agent}
)
response.raise_for_status()
data = response.json()
# Transform to standard format
posts = []
for child in data.get("data", {}).get("children", []):
post_data = child.get("data", {})
posts.append({
"id": post_data.get("id"),
"title": post_data.get("title"),
"author": post_data.get("author"),
"score": post_data.get("score", 0),
"num_comments": post_data.get("num_comments", 0),
"url": post_data.get("url"),
"created_utc": int(post_data.get("created_utc", 0)),
"source": "reddit"
})
logger.info(f"✅ Reddit: Fetched {len(posts)} new posts from r/{subreddit}")
return {
"success": True,
"data": posts,
"subreddit": subreddit,
"count": len(posts),
"source": "reddit",
"timestamp": datetime.utcnow().isoformat()
}
except Exception as e:
logger.error(f"❌ Reddit API failed: {e}")
raise Exception(f"Failed to fetch Reddit posts: {str(e)}")
class RSSFeedClient:
"""
RSS Feed Client
Fetches news from cryptocurrency RSS feeds
"""
def __init__(self):
self.feeds = {
"coindesk": "https://www.coindesk.com/arc/outboundfeeds/rss/",
"cointelegraph": "https://cointelegraph.com/rss",
"bitcoinmagazine": "https://bitcoinmagazine.com/.rss/full/",
"decrypt": "https://decrypt.co/feed",
"theblock": "https://www.theblock.co/rss.xml"
}
async def fetch_feed(self, feed_name: str, limit: int = 20) -> Dict[str, Any]:
"""
Fetch articles from a specific RSS feed
Args:
feed_name: Name of the feed (coindesk, cointelegraph, etc.)
limit: Maximum number of articles
Returns:
RSS feed articles
"""
if feed_name not in self.feeds:
raise ValueError(f"Unknown feed: {feed_name}. Available: {list(self.feeds.keys())}")
try:
feed_url = self.feeds[feed_name]
# Parse RSS feed
feed = feedparser.parse(feed_url)
# Transform to standard format
articles = []
for entry in feed.entries[:limit]:
# Parse timestamp
try:
if hasattr(entry, "published_parsed"):
dt = datetime(*entry.published_parsed[:6])
elif hasattr(entry, "updated_parsed"):
dt = datetime(*entry.updated_parsed[:6])
else:
dt = datetime.utcnow()
timestamp = int(dt.timestamp())
except:
timestamp = int(datetime.utcnow().timestamp())
articles.append({
"title": entry.get("title", ""),
"link": entry.get("link", ""),
"summary": entry.get("summary", "")[:500], # Limit summary
"author": entry.get("author", ""),
"published": timestamp,
"source": feed_name,
"feed_url": feed_url
})
logger.info(f"✅ RSS: Fetched {len(articles)} articles from {feed_name}")
return {
"success": True,
"data": articles,
"feed_name": feed_name,
"feed_url": feed_url,
"count": len(articles),
"source": "rss",
"timestamp": datetime.utcnow().isoformat()
}
except Exception as e:
logger.error(f"❌ RSS feed {feed_name} failed: {e}")
raise Exception(f"Failed to fetch RSS feed: {str(e)}")
async def fetch_all_feeds(self, limit_per_feed: int = 10) -> Dict[str, Any]:
"""
Fetch articles from all RSS feeds
Args:
limit_per_feed: Maximum number of articles per feed
Returns:
All RSS feed articles
"""
all_articles = []
feed_results = {}
for feed_name in self.feeds.keys():
try:
result = await self.fetch_feed(feed_name, limit_per_feed)
feed_results[feed_name] = {
"success": True,
"count": result["count"]
}
all_articles.extend(result["data"])
except Exception as e:
logger.error(f"❌ Failed to fetch {feed_name}: {e}")
feed_results[feed_name] = {
"success": False,
"error": str(e)
}
# Sort by published date
all_articles.sort(key=lambda x: x.get("published", 0), reverse=True)
logger.info(f"✅ RSS: Fetched {len(all_articles)} total articles from {len(self.feeds)} feeds")
return {
"success": True,
"data": all_articles,
"total_articles": len(all_articles),
"feeds": feed_results,
"source": "rss",
"timestamp": datetime.utcnow().isoformat()
}
# Global instances
alternative_me_client = AlternativeMeClient()
reddit_client = RedditClient()
rss_feed_client = RSSFeedClient()
# Export
__all__ = [
"AlternativeMeClient",
"RedditClient",
"RSSFeedClient",
"alternative_me_client",
"reddit_client",
"rss_feed_client"
]
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