Server-Side Set Up

This section contains the information you need to set up your server. Initializing
Unified Checkout
within your webpage begins with a server-to-server call to the sessions API. This step authenticates your merchant credentials, and establishes how the
Unified Checkout
frontend components will function. The sessions API request contains parameters that define how
Unified Checkout
The server-side component provides this information:
  • A transaction-specific public key is used by the customer's browser to protect the transaction.
  • An authenticated context description package that manages the payment experience on the client side. It includes available payment options such as card networks, payment interface styling, and payment methods.
The functions are compiled in a JSON Web Token (JWT) object referred to as the
capture context
. For information JSON Web Tokens, see JSON Web Tokens.