Prerequisites
Before you start integrating PayPal, make sure you have the following in place.
What you need
| Artifact | Where to get it |
|---|---|
PayPal-enabled terminal (terminalId) | Test-portal / portal → Settings → Online payment methods → PayPal: see your terminals, find the terminalId, and toggle PayPal on/off per terminal. |
OAuth client credentials (clientId / clientSecret) | Provided by DNA Payments after merchant onboarding |
| HTTPS-enabled web server | Your hosting |
The OAuth credentials are used to generate an access token on your backend: see Authentication for the full flow.
What DNA Payments handles for you
- All PayPal-side setup: merchant account, gateway configuration, server-side communication with the PayPal backend.
- Loading and configuring the PayPal JS SDK based on your terminal settings.
- Creating and approving the PayPal order against the DNA Payments backend.
You only need a DNA Payments terminal with PayPal enabled and a public HTTPS-hosted page.
With these prerequisites in place, you are ready to move on to Integration.