wechatpayv3
介绍
微信支付接口V3版python库。
适用对象
wechatpayv3支持微信支付直连商户，接口说明详见 官网。
特性
- 平台证书自动更新，无需开发者关注平台证书有效性，无需手动下载更新；
- 支持本地缓存平台证书，初始化时指定平台证书保存目录即可。
适配进度
微信支付V3版API接口
其中：
基础支付
JSAPI支付 已适配
APP支付 已适配
H5支付 已适配
Native支付 已适配
小程序支付 已适配
合单支付 已适配
付款码支付 待官网更新
刷脸支付 无需适配
行业方案
智慧商圈 已适配
需要的接口适配怎么办？
由于wechatpayv3包内核心的core.py已经封装了请求签名和消息验证过程，开发者无需关心web请求细节，直接根据官方文档参考以下基础支付的申请退款接口代码自行适配，测试OK的话，欢迎提交代码。 必填的参数建议加上空值检查，可选的参数默认传入None。参数类型对照参考下表：
| 文档声明 | wechatpayv3 |
|---|---|
| string | string |
| int | int |
| object | dict: {} |
| array | list: [] |
| boolean | bool: True, False |
def refund(self,
out_refund_no,
amount,
transaction_id=None,
out_trade_no=None,
reason=None,
funds_account=None,
goods_detail=None,
notify_url=None):
"""申请退款
:param out_refund_no: 商户退款单号，示例值：'1217752501201407033233368018'
:param amount: 金额信息，示例值：{'refund':888, 'total':888, 'currency':'CNY'}
:param transaction_id: 微信支付订单号，示例值：'1217752501201407033233368018'
:param out_trade_no: 商户订单号，示例值：'1217752501201407033233368018'
:param reason: 退款原因，示例值：'商品已售完'
:param funds_account: 退款资金来源，示例值：'AVAILABLE'
:param goods_detail: 退款商品，示例值：{'merchant_goods_id':'1217752501201407033233368018', 'wechatpay_goods_id':'1001', 'goods_name':'iPhone6s 16G', 'unit_price':528800, 'refund_amount':528800, 'refund_quantity':1}
:param notify_url: 通知地址，示例值：'https://www.weixin.qq.com/wxpay/pay.php'
"""
params = {}
params['notify_url'] = notify_url or self._notify_url
#
if out_refund_no:
params.update({'out_refund_no': out_refund_no})
else:
raise Exception('out_refund_no is not assigned.')
if amount:
params.update({'amount': amount})
else:
raise Exception('amount is not assigned.')
if transaction_id:
params.update({'transaction_id': transaction_id})
if out_trade_no:
params.update({'out_trade_no': out_trade_no})
if reason:
params.update({'reason': reason})
if funds_account:
params.update({'funds_account': funds_account})
if goods_detail:
params.update({'goods_detail': goods_detail})
path = '/v3/refund/domestic/refunds'
return self._core.request(path, method=RequestType.POST, data=params)
源码
安装
$ pip install wechatpayv3
使用方法
准备
参考微信官方文档准备好密钥, 证书文件和配置(证书/密钥/签名介绍)
初始化
from wechatpayv3 import WeChatPay, WeChatPayType
# 微信支付商户号
MCHID = '1230000109'
# 商户证书私钥
PRIVATE_KEY = 'MIIEvwIBADANBgkqhkiG9w0BAQE...'
# 商户证书序列号
CERT_SERIAL_NO = '444F4864EA9B34415...'
# API v3密钥， https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay3_2.shtml
APIV3_KEY = 'MIIEvwIBADANBgkqhkiG9w0BAQE...'
# APPID
APPID = 'wxd678efh567hg6787'
# 回调地址，也可以在调用接口的时候覆盖
NOTIFY_URL = 'https://www.weixin.qq.com/wxpay/pay.php'
wxpay = WeChatPay(
wechatpay_type=WeChatPayType.MINIPROG,
mchid=MCHID,
parivate_key=PRIVATE_KEY,
cert_serial_no=CERT_SERIAL_NO,
apiv3_key=APIV3_KEY,
appid=APPID,
notify_url=NOTIFY_URL)
接口
# 统一下单
def pay():
code, message = wxpay.pay(
description='demo-description',
out_trade_no='demo-trade-no',
amount={'total': 100},
payer={'openid': 'demo-openid'})
print('code: %s, message: %s' % (code, message))
# 订单查询
def query():
code, message = wxpay.query(transaction_id='demo-transation-id')
print('code: %s, message: %s' % (code, message))
# 关闭订单
def close():
code, message = wxpay.close(out_trade_no='demo-out-trade-no')
print('code: %s, message: %s' % (code, message))
# 申请退款
def refund():
code, message=wxpay.refund(
out_refund_no='demo-out-refund-no',
amount={'refund': 100, 'total': 100, 'currency': 'CNY'},
transaction_id='1217752501201407033233368018')
print('code: %s, message: %s' % (code, message))
# 退款查询
def query_refund():
code, message = wxpay.query_refund(out_refund_no='demo-out-refund-no')
print('code: %s, message: %s' % (code, message))
# 申请交易账单
def trade_bill():
code, message = wxpay.trade_bill(bill_date='2021-04-01')
print('code: %s, message: %s' % (code, message))
# 申请资金流水账单
def fundflow_bill():
code, message = wxpay.fundflow_bill(bill_date='2021-04-01')
print('code: %s, message: %s' % (code, message))
# 下载账单
def download_bill():
code, message = wxpay.download_bill(url='https://api.mch.weixin.qq.com/v3/billdownload/file?token=demo-token')
print('code: %s, message: %s' % (code, message))
# 合单支付下单
def combine_pay():
code, message = wxpay.combine_pay(
combine_out_trade_no='demo_out_trade_no',
sub_orders=[{'mchid':'1900000109',
'attach':'深圳分店',
'amount':{'total_amount':100,'currency':'CNY'},
'out_trade_no':'20150806125346',
'description':'腾讯充值中心-QQ会员充值',
'settle_info':{'profit_sharing':False, 'subsidy_amount':10}}])
print('code: %s, message: %s' % (code, message))
# 合单订单查询
def combine_query():
code, message = wxpay.combine_query(combine_out_trade_no='demo_out_trade_no')
print('code: %s, message: %s' % (code, message))
# 合单订单关闭
def combine_close():
code, message = wxpay.combine_close(
combine_out_trade_no='demo_out_trade_no',
sub_orders=[{'mchid': '1900000109', 'out_trade_no': '20150806125346'}])
print('code: %s, message: %s' % (code, message))
# 计算签名供调起支付时拼凑参数使用
# 注意事项：注意参数顺序，某个参数为空时不能省略，以空字符串''占位
def sign():
print(wxpay.sign(['wx888','1414561699','5K8264ILTKCH16CQ2502S....','prepay_id=wx201410272009395522657....']))
# 验证并解密回调消息，把回调接口收到的headers和body传入
def decrypt_callback(headers, body):
print(wxpay.decrypt_callback(headers, body))
# 智慧商圈积分通知
def points_notify():
code, message = wxpay.points_notify(
transaction_id='4200000533202000000000000000',
openid='otPAN5xxxxxxxxrOEG6lUv_pzacc',
earn_points=True,
increased_points=100,
points_update_time='2020-05-20T13:29:35.120+08:00')
print('code: %s, message: %s' % (code, message))
# 智慧商圈积分授权查询
def user_authorization():
code, message = wxpay.user_authorizations(openid='otPAN5xxxxxxxxrOEG6lUv_pzacc')
print('code: %s, message: %s' % (code, message))
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