wechatpay_v3_native_pay_qr_code_transaction_quickstart.py

1from wechatpayv3 import WeChatPay, WeChatPayType
2
3# 1. Initialize the WeChatPay client
4# Replace the placeholder values with your actual merchant credentials
5MCHID = '1900000001' # Merchant ID
6MCH_CERT_SERIAL_NO = 'S761B01234567890ABCDEF01234567890ABCDEF0' # Merchant certificate serial number
7MCH_PRIVATE_KEY_PATH = 'path/to/apiclient_key.pem' # Path to your merchant private key
8WECHAT_PAY_CERT_DIR = 'path/to/wechatpay_certs' # Directory to save WeChat Pay platform certificates
9
10# For first-time use, the SDK will automatically download the platform certificate 
11# if the directory is provided and valid.
12wxpay = WeChatPay(
13    wechatpay_type=WeChatPayType.NATIVE,
14    mchid=MCHID,
15    private_key_path=MCH_PRIVATE_KEY_PATH,
16    cert_serial_no=MCH_CERT_SERIAL_NO,
17    apiv3_key='your_apiv3_key_here_32_chars_long',
18    cert_dir=WECHAT_PAY_CERT_DIR
19)
20
21# 2. Call the Native Pay API to create an order
22# This generates a 'code_url' which you convert into a QR code for the user to scan.
23code, message = wxpay.pay(
24    description='Image Storage Subscription',
25    out_trade_no='sdk-python-order-20231027', # Your unique order ID
26    amount={'total': 1}, # Amount in cents (1 = 0.01 CNY)
27    pay_type=WeChatPayType.NATIVE
28)
29
30# 3. Handle the response
31if code == 200:
32    import json
33    data = json.loads(message)
34    print(f"Success! QR Code URL: {data.get('code_url')}")
35else:
36    print(f"Failed! Status Code: {code}, Message: {message}")