Custom Paypal credit card payment form required fields for payment api

I'm integrating a custom paypal credit card payment form in my project (Angular2 + Node.js).

Refer:

(1.) https://developer.paypal.com/docs/integration/direct/payments/credit-card-payments/#create-credit-card-payment

(2.) http://code.runnable.com/UXgyne_v2oZyAAC-/pay-with-a-credit-card-using-paypal-api-for-node-js

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My question is do we really need to add "first_name" and "last_name" field in the form. Instead I just want to add one field for the name of card holder.

Please sugggest the best solution for my case. Thankyou!

via Vinit Kumar