Huobi offers a powerful API that allows traders and developers to automate trading strategies, retrieve market data, and manage accounts programmatically. Whether you’re building a simple trading bot or an advanced algorithmic system, this guide will help you understand how to use the Huobi API effectively.

1. Introduction to Huobi API

The Huobi API provides various functionalities for traders and developers, including:

✔ REST API – For retrieving market data, account management, and placing/canceling orders.
✔ WebSocket API – For real-time market updates and order book tracking.
✔ FIX API – For institutional traders who require high-speed trading solutions.

The API enables users to automate trading, access historical data, and optimize investment strategies.

2. How to Get API Keys on Huobi

Before using the API, you need to generate API keys for authentication.

Step 1: Log in to Your Huobi Account

• Go to Huobi’s official website and log in.

Step 2: Navigate to API Management

• Click on your profile and select API Management.
• Click Create API Key.

Step 3: Set Permissions

• Choose API permissions: Read-Only or Trade Permission.
• Bind an IP address (recommended for security).
• Click Confirm and save your API Key and Secret Key securely.

3. Connecting to Huobi API

To interact with Huobi’s API, you need an HTTP client such as Python (Requests Library), Node.js (Axios), or any API testing tool like Postman.

Example: Getting Market Data Using Python

import requests

url = "https://api.huobi.pro/market/tickers"
response = requests.get(url)
data = response.json()
print(data)

This script fetches the latest market prices from Huobi.

4. Placing an Automated Trade Using Huobi API

To place an order, you must authenticate using your API Key.

Example: Placing a Limit Buy Order (Python)

import requests
import hmac
import hashlib
import time
import base64

ACCESS_KEY = "your_api_key"
SECRET_KEY = "your_secret_key"

# Generate Signature
def create_signature(method, url, params):
    query = '&'.join([f"{key}={params[key]}" for key in sorted(params)])
    message = f"{method}\napi.huobi.pro\n{url}\n{query}"
    signature = base64.b64encode(hmac.new(SECRET_KEY.encode(), message.encode(), hashlib.sha256).digest())
    return signature.decode()

# Order Details
params = {
    "account-id": "your_account_id",
    "amount": "0.01",
    "price": "20000",
    "symbol": "btcusdt",
    "type": "buy-limit"
}

# Place Order
url = "/v1/order/orders/place"
headers = {"Authorization": f"Bearer {ACCESS_KEY}"}
signature = create_signature("POST", url, params)
params["Signature"] = signature
response = requests.post(f"https://api.huobi.pro{url}", headers=headers, json=params)
print(response.json())

5. Using WebSocket API for Real-Time Data

WebSocket API is useful for receiving real-time market updates.

Example: WebSocket Market Data Stream

import websocket
import json

def on_message(ws, message):
    data = json.loads(message)
    print("Market Data:", data)

def on_open(ws):
    ws.send(json.dumps({"sub": "market.btcusdt.kline.1min", "id": "1"}))

ws = websocket.WebSocketApp("wss://api.huobi.pro/ws", on_message=on_message)
ws.on_open = on_open
ws.run_forever()

6. Best Practices for Using Huobi API

✔ Use API Keys Securely: Store keys in environment variables instead of hardcoding them. ✔ Rate Limits: Respect Huobi’s rate limits to avoid being blocked. ✔ Error Handling: Implement robust error handling for network and API failures. ✔ Secure Your IP: Bind API keys to specific IP addresses for security.

Conclusion

Huobi API is a powerful tool for automating cryptocurrency trading. By leveraging REST API, WebSocket API, and advanced trading bots, users can optimize their strategies efficiently.

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