分享两个监控资产价格，当达成条件时发出预警。代码展示的是基础应用场景，可以根据自己实际需要调整判断条件，也可以接入交易接口，实现预警后的自动交易。

比特币价格预警

通过HTTP接口查询比特币的实时价格，如果价格达到预设值，比如7万3美金，则发邮件提醒。

import requests
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

# 设置AllTick API的URL和请求参数
API_URL = "https://api.alltick.com/v1/marketdata/btcusd"
API_KEY = "your_api_key_here"  # 替换为您的API密钥

# API KEY可以在alltick.co注册获取

# 邮件通知设置
SMTP_SERVER = "smtp.your-email-provider.com"  # 替换为SMTP服务器地址
SMTP_PORT = 587  # 通常587或465
EMAIL_ADDRESS = "[email protected]"  # 发件人邮箱
EMAIL_PASSWORD = "your_password_here"  # 发件人邮箱密码
TO_EMAIL = "[email protected]"  # 收件人邮箱

# 获取比特币最新报价
def get_btc_price():
    headers = {
        "Authorization": f"Bearer {API_KEY}",
        "Content-Type": "application/json"
    }
    response = requests.get(API_URL, headers=headers)
    if response.status_code == 200:
        data = response.json()
        return float(data["price"]) 
    else:
        print("Failed to retrieve data:", response.status_code, response.text)
        return None

# 发送邮件通知
def send_email_notification(price):
    subject = "比特币价格提醒"
    body = f"比特币当前价格为 ${price}，已超过73000美元！"
    
    message = MIMEMultipart()
    message["From"] = EMAIL_ADDRESS
    message["To"] = TO_EMAIL
    message["Subject"] = subject
    
    message.attach(MIMEText(body, "plain"))

    try:
        with smtplib.SMTP(SMTP_SERVER, SMTP_PORT) as server:
            server.starttls()  # 启用TLS
            server.login(EMAIL_ADDRESS, EMAIL_PASSWORD)
            server.sendmail(EMAIL_ADDRESS, TO_EMAIL, message.as_string())
        print("邮件已发送！")
    except Exception as e:
        print("邮件发送失败:", e)

# 主函数，检查价格并发送通知
def main():
    price = get_btc_price()
    if price is not None:
        print(f"当前比特币价格: ${price}")
        if price > 73000:
            send_email_notification(price)

if __name__ == "__main__":
    main()

通过Websocket订阅BTC的实时价格，当出现金叉，并且交易量激增的情况下发出预警。

import json
import websocket
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from collections import deque

# WebSocket和邮件参数
API_URL = 'wss://quote.tradeswitcher.com/quote-b-ws-api?token=your_token_here'  # 替换为AllTick的实际WebSocket URL和Token
SMTP_SERVER = "smtp.your-email-provider.com"
SMTP_PORT = 587
EMAIL_ADDRESS = "[email protected]"
EMAIL_PASSWORD = "your_password_here"
TO_EMAIL = "[email protected]"

# AllTick接口注册：alltick.co

# 初始化均线和交易量窗口
short_window = deque(maxlen=50)  # 50个数据点窗口
long_window = deque(maxlen=200)  # 200个数据点窗口
prev_short_avg = 0
prev_long_avg = 0

# 邮件通知功能
def send_email_notification(price, volume):
    subject = "比特币价格金叉提醒"
    body = f"比特币当前价格为 ${price}，且交易量显著增加！"
    
    message = MIMEMultipart()
    message["From"] = EMAIL_ADDRESS
    message["To"] = TO_EMAIL
    message["Subject"] = subject
    
    message.attach(MIMEText(body, "plain"))

    try:
        with smtplib.SMTP(SMTP_SERVER, SMTP_PORT) as server:
            server.starttls()
            server.login(EMAIL_ADDRESS, EMAIL_PASSWORD)
            server.sendmail(EMAIL_ADDRESS, TO_EMAIL, message.as_string())
        print("邮件已发送！")
    except Exception as e:
        print("邮件发送失败:", e)

# WebSocket连接类
class Feed:
    def __init__(self):
        self.url = API_URL
        self.ws = None

    def on_open(self, ws):
        print("WebSocket连接已打开！")
        sub_param = {
            "cmd_id": 22002,
            "seq_id": 123,
            "data": {
                "symbol_list": [
                    {"code": "BTCUSD", "depth_level": 5}
                ]
            }
        }
        ws.send(json.dumps(sub_param))
        print("已订阅BTCUSD行情数据！")

    def on_message(self, ws, message):
        global prev_short_avg, prev_long_avg
        data = json.loads(message)
        
        # 提取价格和交易量
        price = float(data["price"])
        volume = float(data["volume"])

        # 更新均线窗口
        short_window.append(price)
        long_window.append(price)

        # 计算短期和长期均线
        if len(short_window) == short_window.maxlen and len(long_window) == long_window.maxlen:
            short_avg = sum(short_window) / len(short_window)
            long_avg = sum(long_window) / len(long_window)

            # 检查金叉条件：短期均线从下向上突破长期均线
            if prev_short_avg < prev_long_avg and short_avg > long_avg:
                # 检查交易量激增（假设过去平均交易量增幅超过50%为激增）
                avg_volume = sum(long_window) / len(long_window)
                if volume > avg_volume * 1.5:
                    send_email_notification(price, volume)

            prev_short_avg = short_avg
            prev_long_avg = long_avg

    def on_error(self, ws, error):
        print("WebSocket出错:", error)

    def on_close(self, ws, close_status_code, close_msg):
        print("WebSocket连接关闭！")

    def start(self):
        self.ws = websocket.WebSocketApp(
            self.url,
            on_open=self.on_open,
            on_message=self.on_message,
            on_error=self.on_error,
            on_close=self.on_close,
        )
        self.ws.run_forever()

# 启动WebSocket客户端
if __name__ == "__main__":
    feed = Feed()
    feed.start()