Wechatpay

A gem to deal with Wechatpay. The Wechatpay official document can be found here. You will receive the backend document when you get the Wechatpay access.

Installation

Add this line to your application's Gemfile:

gem 'wechatpay', '~> 0.0.1'

And then execute:

$ bundle

Or install it yourself as:

$ gem install wechatpay

Usage

Configuration

Wechatpay.configure do |w|
  w.app_id = 'wx123456'
  w.mch_id = 'abcdefg'
  w.payment_key = 'abc123'
end

The params contains:

app_id: 公众账号ID
mch_id: 微信商户账号
payment_key: 商户支付秘钥

Unified Order/统一下单

options = {
  body: 'awesome product name'
  out_trade_no: '20150101030320204',
  total_fee: 100, # in cents
  spbill_create_ip: '127.0.0.1',
  notify_url: 'http://example.com/notify',
  trade_type: "JSAPI",
  openid: '123123123'
}
response = Wechatpay::Service.unified_order(options)
prepay_id = response["prepay_id"]

Refund/退款

options = {
  out_trade_no: '20150101030320204',
  out_refund_no: '334443222222222',
  total_fee: 10000,
  refund_fee: 10000,
  refund_fee_type: 'CNY'
}
Wechatpay::Service.refund(options, cert, cert_pwd)

Generate payment params

params = Wechatpay::Service.pay_params(prepay_id)
# {
#    timestamp: 0, // 支付签名时间戳，注意微信jssdk中的所有使用timestamp字段均为小写。但最新版的支付后台生成签名使用的timeStamp字段名需大写其中的S字符
#   nonceStr: '', // 支付签名随机串，不长于 32 位
#   package: '', // 统一支付接口返回的prepay_id参数值，提交格式如：prepay_id=***）
#   signType: '', // 签名方式，默认为'SHA1'，使用新版支付需传入'MD5'
#   paySign: '', // 支付签名
# }

Contributing

Fork it ( https://github.com/[my-github-username]/wechatpay/fork )
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create a new Pull Request

wechatpay

Development

Runtime