Starts a transaction.

POST {{baseUrl}}/payments

Sends payment parameters (like amount, country, and currency) together with the input details collected from the shopper. The response returns the result of the payment request: * For some payment methods (e.g. Visa, Mastercard, and SEPA Direct Debits) you'll get a final state in the resultCode (e.g. authorised or refused). * For other payment methods, you'll receive redirectShopper as resultCode together with a redirectUrl. In this case, the shopper must finalize the payment on the