https://docs.paymentjs.firstdata.com/
- Gateway and PaymentJSv2 developer app credentials are stored in config.php. Add the credentials accordingly.
- For the webhook callback to work, a HTTPS supported webhook url needs to be registered in the developer app for PaymentJSv2. Fill out the form from this link https://docs.firstdata.com/req/paymentjs and please allow 48 business hours to be on-boarded.
- Client directory contains all the browser related codes and paymentLog directory logs the successful transactions' details.
- There are four payment gateways and you will need to have sandbox account for each to run the integration for specific gateway.