ctf-stream 0.1.2

CTF activity stream SDK for prediction markets.

CTF Activity Stream

Simple activity streaming SDK for prediction markets.

Features

• Fast - Trades arrive as blocks are mined
• Simple - No API keys required
• Reconnection - Exponential backoff w/ jitter, multi-endpoint failover
• Wallet filtering - Track specific wallets
• Batteries - Built-in CLI and Redis support

Installation

pip install ctf-stream

Quick Start

import asyncio
from ctf_stream import ActivityClient

async def main():
    # Initialize client with RPC endpoints
    client = ActivityClient(
        rpc_endpoints=["wss://polygon-bor-rpc.publicnode.com"]
    )
    
    # Option 1: Track specific Safe address
    await client.track_wallet("0x1234567890123456789012345678901234567890")
    # Option 2: Stream all trades
    # client.set_track_all(True)
    
    # Stream trades
    async for trade in client.stream_trades():
        print(f"{trade.side} ${trade.size_usdc:.2f} | {trade.outcome} @ {trade.price:.2%}")
        print(f"  Market: {trade.market_title}")
        print(f"  Wallet: {trade.wallet}")

asyncio.run(main())

With Context Manager

async with ActivityClient(rpc_endpoints=["wss://..."]) as client:
    client.set_track_all(True)
    async for trade in client.stream_trades():
        process(trade)

CLI Usage

# Stream all trades
ctf stream

# Use specific RPC endpoint
ctf stream --rpc wss://polygon-bor-rpc.publicnode.com

# Track specific Safe address/wallet
ctf stream --wallet 0x1234...

# Use Redis for caching
ctf stream --redis redis://localhost:6379

# Save to file (JSONL)
ctf stream --output trades.jsonl

# Test connection
ctf ping

CLI Output

🟥 Running...
Press Ctrl+C to stop

12:34:56 BUY       $500.00 Yes             @ 45.0%  | Will it rain tomorrow?
12:34:58 SELL      $250.00 No              @ 55.0%  | Bitcoin above $100k by March?

API Reference

ActivityClient

Main client for streaming trades.

from ctf_stream import ActivityClient, Config

# Basic initialization
client = ActivityClient(
    rpc_endpoints=["wss://polygon-bor-rpc.publicnode.com"],
    redis_url="redis://localhost:6379",  # Optional
)

# Or with full config
config = Config(
    rpc_endpoints=["wss://polygon-bor-rpc.publicnode.com"],
    ws_idle_timeout=60,
    token_cache_ttl=3600,
)
client = ActivityClient(config=config)

# Methods
await client.track_wallet("0x...")      # Track wallet
await client.untrack_wallet("0x...")    # Untrack wallet
await client.track_wallets(["0x...", "0x..."])  # Track multiple
client.set_track_all(True)              # Stream all trades

# Stream trades
async for trade in client.stream_trades(enrich=True):
    print(trade)

# Get statistics
stats = client.get_stats()
print(stats.websocket.connected)
print(stats.processor.events_processed)

Trade Object

class Trade:
    tx_hash: str
    block_number: int
    timestamp: int
    wallet: str
    token_id: str
    side: str              # "BUY" or "SELL"
    price: float           # 0.0 to 1.0
    size_usdc: float
    size_shares: float
    market_slug: str | None
    market_title: str | None
    outcome: str | None

Config

Config(
    rpc_endpoints=["wss://..."],        # WebSocket RPC endpoints
    redis_url="redis://localhost:6379", # Optional Redis for caching
    ws_idle_timeout=60,                  # Seconds before reconnect
    token_cache_ttl=3600,                # Memory cache TTL
)

RPC Endpoints

The SDK works with any Polygon RPC endpoint that supports WebSocket. Some free options:

Provider	Endpoint	Notes
publicnode by Allnodes	wss://polygon-bor-rpc.publicnode.com	Free, reliable
dRPC	wss://polygon.drpc.org	Free tier available
Alchemy	wss://polygon-mainnet.g.alchemy.com/v2/KEY	Requires API key
Infura	wss://polygon-mainnet.infura.io/ws/v3/KEY	Requires API key
ValidationCloud	wss://mainnet.polygon.validationcloud.io/v1/KEY	Requires API key

Tip: Add multiple endpoints for better reliability:

client = ActivityClient(
    rpc_endpoints=[
        "wss://polygon-bor-rpc.publicnode.com",
        "wss://polygon.drpc.org",
    ]
)

License

MIT License - see LICENSE for details.