plxdcma_eshop/paypal/init.js

Instala todo lo necesario para una tienda virtual

//https://www.geeksforgeeks.org/how-to-integrate-paypal-in-node/

const paypal = require('paypal-rest-sdk');
var pool;
var _appurl;
function installDefault(app,appurl,client_id,client_secret,successf,cancelf,mode,dbconection){
  //http://localhost:3000
  pool=dbconection
  _appurl=appurl
  paypal.configure({
      'mode': mode,  // live
      'client_id': client_id,
      'client_secret': client_secret
  });
  app.get('/ppl/cc', (req, res) => {
    cancelf(req, res)
  });

  app.get('/ppl/sc', (req, res) => {
    const payerId = req.query.PayerID;
    const paymentId = req.query.paymentId;
    pool.query(`select * from paypaltransaction where ?`,{transactionid:paymentId},function(er2,result){
      console.log(`payerId ${payerId} paymentId ${paymentId}`)
      if(result.length == 0){
        cancelf()
        return
      }
      var rx=result[0]
      var fresultId=rx.id
      var total=rx.total
      var currency=rx.currency
      const execute_payment_json = {
          "payer_id": payerId,
          "transactions": [{
              "amount": {
                  "currency": currency,
                  "total": total
              }
          }]
      };

      paypal.payment.execute(paymentId,
          execute_payment_json,
          function (error, payment) {
              if (error) {
                  console.log(error.response);
                  throw error;
              } else {

                  pool.query(`update paypaltransaction set dateatsuccs = now() where id = ${fresultId}`)

                  successf(req, res,fresultId,rx)
              }
          });
    })

});
}


// app
// http://localhost:3000
//
module.exports.asSandBox=function(app,appurl,yourclientid,yoursecretkey,successFunction,cancelFunction,dbconection){

  installDefault(app,appurl,yourclientid,yoursecretkey,successFunction,cancelFunction,"sandbox",dbconection)
}
module.exports.asProduction=function(app,appurl,yourclientid,yoursecretkey,successFunction,cancelFunction,dbconection){
  installDefault(app,appurl,yourclientid,yoursecretkey,successFunction,cancelFunction,"live",dbconection)
  //app,appurl,scF,cnF,mode,client_id,client_secret,successf,cancelf
}


module.exports.pay=function(items,amount,descripcion,emisorid,conclusion){
  /*
  {
      "name": "Red Sox Hat",
      "sku": "001",
      "price": "25.00",
      "currency": "USD",
      "quantity": 1
  }
  //--
  //
  amount:{
      "currency": "USD",
      "total": "25.00"
  }

  */
  var internalsids=[]
  for(var each in items){
    internalsids.push(items[each].internalid)
    delete items[each].internalid;
  }
  console.log(`internalsids internalsids`)
  console.log(internalsids)
  const create_payment_json = {
        "intent": "sale",
        "payer": {
            "payment_method": "paypal"
        },
        "redirect_urls": {
            "return_url": `${_appurl}/ppl/sc`,
            "cancel_url": `${_appurl}/ppl/cc`
        },
        "transactions": [{
            "item_list": {
                "items": items
            },
            "amount": amount,
            "description": descripcion
        }]
    };
    console.log(`create_payment_json`)
    console.log(create_payment_json)
    console.log(`transactions`)
    console.log(create_payment_json.transactions)
    paypal.payment.create(
        create_payment_json,
        function (error, payment) {
            if (error) {
                throw error;
            } else {
                for (let i = 0; i < payment.links.length; i++) {
                    if (payment.links[i].rel === 'approval_url') {
                        //res.redirect(payment.links[i].href);
                        console.log(`payment at post`)
                        console.log(payment)
                        pool.query(`insert into paypaltransaction(transactionid,dateatpost,total,currency,descripcion,emisor)value('${payment.id}',now(),'${amount.total}','${amount.currency}','${descripcion}',${emisorid})`,function(er,r){
                          console.log(`er - er`)
                          console.log(er)
                          var ars=[]
                          for(var each in items){
                            var itm=items[each]
                            console.log(`internalsids[each] `)
                            console.log(internalsids[each])
                            ars.push([r.insertId,internalsids[each],itm.name,itm.sku,itm.price,itm.currency,itm.quantity])
                          }
                          pool.query(`insert into paypaltransaction_items(transactionid,itemid,itemname,sku,precio,currency,cuantity) values ? `,[ars],function(e,r2){
                            console.log(e)
                            conclusion(payment.links[i].href,r.insertId,r2)
                          })
                        })
                    }
                }
            }
        });
}