研究抖音小程序

tt.pay({
  orderInfo: {
    app_id: "800000040005",
    sign_type: "MD5",
    out_order_no: "MicroApp7075638135",
    merchant_id: "1300000004",
    timestamp: "1566720681",
    product_code: "pay",
    payment_type: "direct",
    total_amount: 1,
    trade_type: "H5",
    uid: "2019012211",
    version: "2.0",
    currency: "CNY",
    subject: "microapp test",
    body: "microapp test",
    trade_time: "1566720681",
    valid_time: "300",
    notify_url: "https://tp-pay.snssdk.com/cashdesk/test/paycallback",
    wx_url:
      "https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?prepay_id=wx25161122572189727ea14cfd1832451500&package=2746219290",
    wx_type: "MWEB",
    alipay_url:"签名",
    risk_info: '{"ip":"127.0.0.1","device_id":"485737374363263"}'
  },
  service: 1,
  getOrderStatus(res) {
    let { out_order_no } = res;
    return new Promise(function(resolve, reject) {
      // 商户前端根据 out_order_no 请求商户后端查询微信支付订单状态
      tt.request({
        url: "<your-backend-url>",
        success(res) {
          // 商户后端查询的微信支付状态，通知收银台支付结果
          resolve({ code: 0 | 1 | 2 | 3 | 9 });
        },
        fail(err) {
          reject(err);
        }
      });
    });
  },
  success(res) {
    if (res.code == 0) {
      // 支付成功处理逻辑，只有res.code=0时，才表示支付成功
      // 但是最终状态要以商户后端结果为准
    }
  },
  fail(res) {
    // 调起收银台失败处理逻辑
  }
});