apple iap validation

index.js

const iap = require('in-app-purchase');

iap.config({applePassword:""});

iap.setup(function (err) {
    if (err) {
        return console.error('something went wrong...');
    }
    else {
        console.log('iap init done');
    }
});

/* POST validation ios */
router.post('/appleiap/receipt/validation', function(req, res, next) {

    let parseRawRecipt = JSON.parse(req.body.RawReceipt);
    
    if(req.body.RawReceipt === null 
      || req.body.RawReceipt === undefined) {
        res.send({result:false});
        return;
    }
    
    if(parseRawRecipt['transaction-receipt'] === undefined) {
        res.send(
            {result:false, 
            error:'receipt invalid transaction receipt'});
    }

    iap.validate(
        iap.APPLE, 
        parseRawRecipt['transaction-receipt'], 
        function (err, appleRes) {
                
            //에러 발생시 에러 전달
            if (err) {
                res.send({result:false, error:`${err}`});
                return;
            }
            //검증되었는지 확인
            if (iap.isValidated(appleRes)) {
                res.send({result:true});
            }
            else {
                res.send({result:false});
            }
        });
});