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shankcode/initiate_txn

Forked from amalj07/initiate_txn
Created February 4, 2021 11:58
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Route for initiating transaction. (POST req to /paynow)
Raw
initiate_txn
app.post('/paynow', [parseUrl, parseJson], (req, res) => {
if (!req.body.amount || !req.body.email || !req.body.phone) {
res.status(400).send('Payment failed')
} else {
var params = {};
params['MID'] = config.PaytmConfig.mid;
params['WEBSITE'] = config.PaytmConfig.website;
params['CHANNEL_ID'] = 'WEB';
params['INDUSTRY_TYPE_ID'] = 'Retail';
params['ORDER_ID'] = 'TEST_' + new Date().getTime();
params['CUST_ID'] = 'customer_001';
params['TXN_AMOUNT'] = req.body.amount.toString();
params['CALLBACK_URL'] = 'http://localhost:3000/callback';
params['EMAIL'] = req.body.email;
params['MOBILE_NO'] = req.body.phone.toString();
checksum_lib.genchecksum(params, config.PaytmConfig.key, function (err, checksum) {
var txn_url = "https://securegw-stage.paytm.in/theia/processTransaction"; // for staging
// var txn_url = "https://securegw.paytm.in/theia/processTransaction"; // for production
var form_fields = "";
for (var x in params) {
form_fields += "<input type='hidden' name='" + x + "' value='" + params[x] + "' >";
}
form_fields += "<input type='hidden' name='CHECKSUMHASH' value='" + checksum + "' >";
res.writeHead(200, { 'Content-Type': 'text/html' });
res.write('<html><head><title>Merchant Checkout Page</title></head><body><center><h1>Please do not refresh this page...</h1></center><form method="post" action="' + txn_url + '" name="f1">' + form_fields + '</form><script type="text/javascript">document.f1.submit();</script></body></html>');
res.end();
});
}
})
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