107 lines
3.9 KiB
Python
107 lines
3.9 KiB
Python
import hashlib
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import requests
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from typing import Dict, Any, Optional
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class Upay:
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def __init__(self):
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self.app_id="4NgfCm1e"
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self.app_secret="4gDTZDXfpKQBboT6"
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self.base_url = "https://api-test.upay.ink"
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# self.base_url = "https://api.upay.ink"
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def _generate_signature(self, params: Dict[str, Any]) -> str:
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"""
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生成签名
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根据 UPay API 签名算法生成签名
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步骤：
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1. 将需要加签的参数按照参数名 ASCII 码从小到大排序（字典序）
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2. 使用 URL 键值对的格式拼接成字符串 stringA
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3. 在 stringA 最后拼接上 &appSecret=密钥 得到 stringSignTemp
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4. 对 stringSignTemp 进行 MD5 运算，再转换为大写
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"""
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# 过滤空值和签名字段（signature 参数不参与签名）
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filtered_params = {k: v for k, v in params.items() if v is not None and k != 'signature'}
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# 按键名升序排序（字典序）
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sorted_params = sorted(filtered_params.items())
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# 拼接字符串 stringA
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string_a = '&'.join([f"{k}={v}" for k, v in sorted_params])
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# 拼接 appSecret 得到 stringSignTemp
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string_sign_temp = f"{string_a}&appSecret={self.app_secret}"
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# MD5 运算并转为大写
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signature = hashlib.md5(string_sign_temp.encode('utf-8')).hexdigest().upper()
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return signature
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def create_order(self,
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merchant_order_no: str,
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chain_type: str,
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fiat_amount: str,
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fiat_currency: str,
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notify_url: str,
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attach: Optional[str] = None,
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product_name: Optional[str] = None,
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redirect_url: Optional[str] = None) -> Dict[str, Any]:
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"""
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创建订单
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Args:
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merchant_order_no: 商户端自主生成的订单号，在商户端要保证唯一性
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chain_type: 链路类型（1: 波场TRC20, 2: 以太坊ERC20, 3: PayPal PYUSD）
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fiat_amount: 法币金额，精确到小数点后4位
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fiat_currency: 法币类型（USD, CNY, INR, JPY, KRW, PHP, EUR, GBP, CHF, TWD, HKD, MOP, SGD, NZD, THB, CAD, ZAR, BRL）
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notify_url: 接收异步通知的回调地址
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attach: 用户自定义数据（可选）
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product_name: 商品名称（可选）
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redirect_url: 支付成功后的前端重定向地址（可选）
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Returns:
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Dict: API 响应数据
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"""
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# 构建请求参数
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sign_params = {
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'appId': self.app_id,
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'merchantOrderNo': merchant_order_no,
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'chainType': chain_type,
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'fiatAmount': fiat_amount,
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'fiatCurrency': fiat_currency,
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'notifyUrl': notify_url,
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}
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params = sign_params.copy()
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# 添加可选参数
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if attach is not None:
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params['attach'] = attach
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if product_name is not None:
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params['productName'] = product_name
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if redirect_url is not None:
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params['redirectUrl'] = redirect_url
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print("请求参数:", params)
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# 生成签名
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signature = self._generate_signature(sign_params)
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params['signature'] = signature
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# 发送请求
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url = f"{self.base_url}/v1/api/open/order/apply"
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try:
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response = requests.post(url, json=params)
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response.raise_for_status()
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return response.json()
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except requests.exceptions.RequestException as e:
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return {
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'success': False,
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'error': f'请求失败: {str(e)}'
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}
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except Exception as e:
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return {
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'success': False,
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'error': f'处理异常: {str(e)}'
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} |