Creates a payment session for Web Drop-in and Web Components integrations. The response contains encrypted payment session data. The front end then uses the session data to make any required server-side calls for the payment flow. You get the payment outcome asynchronously, in an AUTHORISATION webhook.

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}