post
POST /checkout/ec/v1/carts HTTP/1.1
Host: api.uat.platform.pagopa.it
Content-Type: application/json
Accept: */*
Content-Length: 377

{
  "emailNotice": "my_email@mail.it",
  "paymentNotices": [
    {
      "noticeNumber": "302012387654312384",
      "fiscalCode": "7777777777"
    },
    {
      "noticeNumber": "302012387654312385",
      "fiscalCode": "7777777777"
    }
  ],
  "returnUrls": {
    "returnOkUrl": "www.comune.di.prova.it/pagopa/success.html",
    "returnCancelUrl": "www.comune.di.prova.it/pagopa/cancel.html",
    "returnErrorUrl": "www.comune.di.prova.it/pagopa/error.html"
  }
}

No content