I create salesforceAdapter class using ' https://github.com/forcedotcom/Core-Payments-Reference-Gateway-Integration-Adapters/tree/master/SalesforceAdapter/classes '
how to Create a payment gateway provider record that points to the adapter class that you created.
@* Salesforce Developers *@Developer Group, Albany, US@*Experience Cloud Developers*@Commerce Cloud - Japan Developers@* B2C Commerce *@Salesforce Developer Nagpur, MH, IN(Deleted Group)@Developer Group, Kanpur, IN@Developer Group, Bhopal, IN@* Salesforce Administrators *@Developer Group, Jhansi, IN
you can refer to this script
https://git.soma.salesforce.com/communities/sfdx-stripe/blob/master/install_in_1cb2c.sh