To start

This Integration involves three areas :

The server: used to initiate the payment by calling the API.
The client: used to open the payment session to make the payment request and payment.
Webhook server: used to retrieve notifications, in particular payment results.

Prerequisites

Before starting, make sur that you have this informations :

API key.
Obtain a merchant id.
configure the webook server.

The integration steps

Please follow the integration for redirection web payment :

From your serverand before initiate a payment with declare the API library and dev block :

<html>
 <head>
   <script src="https://homologation-payment.cdn.payline.com/cdn/scripts/widget-min.js"></script>
 </head>
 <body>
 <div id="PaylineWidget"
    data-token="the token obtained in Session Response"
    data-template="column"
    data-embeddedredirectionallowed="false"
 />
 </body>
</html>

More informations.

Initiate a payment with /sessions
Retrieve the redirectURL in the response and redirect your buyer on it.
The buyer makes the payment.
Retrieve the result with /sessions