@jashine/unipay-poslink/index.js

银联: 扫码支付-被扫

/**
 * Created by luckyriko on 2022/1/14.
 * 银联被扫业务文档 https://open.chinaums.com/resources/?code=131545707826425&url=584a04fe-3c66-466e-93c5-fcb01426245d
 */
"use strict";

const { encodeParams, sign, signVerify, copy } = require("./utils/utl");
const axios = require("axios");
const dayjs = require('dayjs');
module.exports = unipayPosLink;
 
/**
  *
  * @param {Object} opts
  * @param {String} opts.gateWay         请求地址
  * @param {String} opts.appid           appid
  * @param {String} opts.appkey          appkey
  * @constructor
  */
function unipayPosLink(opts) {
  if (!opts.gateWay) throw new Error('need gateWay param!');
  if (!opts.appid) throw new Error('need sub_appid param!');
  if (!opts.appkey) throw new Error('need sub_appid param!');

  this.gateWay = opts.gateWay;
  this.appid = opts.appid;
  this.appkey = opts.appkey;
}
 
const props = unipayPosLink.prototype;
 
props.generateAuthorization = function(params) {
  return sign(this.appid, this.appkey, params);
};

/**
 * 测试
 */
props.test = async function(opts) {
  return 'hello world!'
};

/**
  * 用户出示付款码支付
  * @param {Object} opts
  * @param {String} opts.requestTimestamp     报文请求时间
  * @param {String} opts.merchantCode         商户号
  * @param {String} opts.terminalCode         终端号
  * @param {Number} opts.transactionAmount    支付总金额，单位：分
  */
props.pay = async function(opts) {
  opts.requestTimestamp = dayjs().format("YYYY-MM-DD HH:mm:ss");
  const authorization = this.generateAuthorization(opts);
  const { data } = await axios.post(this.gateWay+'pay', opts, {headers: {Authorization: authorization}});
  return data;
};
 
/**
  * 撤销支付
  * @param {Object} opts
  * @param {String} opts.requestTimestamp     报文请求时间
  */
props.voidpayment = async function(opts) {
  opts.requestTimestamp = dayjs().format("YYYY-MM-DD HH:mm:ss");
  const authorization = this.generateAuthorization(opts);
  const { data } = await axios.post(this.gateWay+'voidpayment', opts, {headers: {Authorization: authorization}});
  return data;
};

/**
  * 退款
  * @param {Object} opts
  * @param {String} opts.requestTimestamp     报文请求时间
  */
props.refund = async function(opts) {
  opts.requestTimestamp = dayjs().format("YYYY-MM-DD HH:mm:ss");
  const authorization = this.generateAuthorization(opts);
  const { data } = await axios.post(this.gateWay+'refund', opts, {headers: {Authorization: authorization}});
  return data;
};

/**
  * 交易查询
  * @param {Object} opts
  * @param {String} opts.requestTimestamp     报文请求时间
  */
props.query = async function(opts) {
  opts.requestTimestamp = dayjs().format("YYYY-MM-DD HH:mm:ss");
  const authorization = this.generateAuthorization(opts);
  const { data } = await axios.post(this.gateWay+'query', opts, {headers: {Authorization: authorization}});
  return data;
};

/**
  * 退款查询
  * @param {Object} opts
  * @param {String} opts.requestTimestamp     报文请求时间
  */
props.queryRefund = async function(opts) {
  opts.requestTimestamp = dayjs().format("YYYY-MM-DD HH:mm:ss");
  const authorization = this.generateAuthorization(opts);
  const { data } = await axios.post(this.gateWay+'query-refund', opts, {headers: {Authorization: authorization}});
  return data;
};

/**
  * 自定义请求接口
  * @param {Object} opts
  * @param {String} opts.requestTimestamp     报文请求时间
  */
props.request = async function(opts) {
  opts.requestTimestamp = dayjs().format("YYYY-MM-DD HH:mm:ss");
  if (!opts.msgType) throw new Error('need msgType param!');
  let msgType = opts.msgType;
  delete opts.msgType;
  const authorization = this.generateAuthorization(opts);
  const { data } = await axios.post(this.gateWay+msgType, opts, {headers: {Authorization: authorization}});
  return data;
};