paypal ipn callback url code example
Example: callback url in paytm integration
async verifyChecksum({
request,
auth,
response
}) {
var paytmParams = {};
var paytmChecksum;
for (var key in request) {
if (key == "CHECKSUMHASH") {
paytmChecksum = request[key];
} else {
paytmParams[key] = request[key];
}
}
// const checksum = request.only(['checksum']);
if (paytm_checksum.verifychecksum(paytmParams, paytm_config.MERCHANT_KEY, paytmChecksum)) {
console.log("Checksum Verification => true");
response.send("Checksum Verification => true");
} else {
console.log("Checksum Verification => false");
response.send("Checksum Verification => false");
}
}