curl --request POST \
  --url https://channels-service.fourvenues.com/resellers/swap \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "ticket": {
    "barcode": "ABCD1234"
  },
  "customer": {
    "firstName": "Joan",
    "lastName": "Llavor de Poma",
    "email": "john.appleseed@fourvenues.com",
    "language": "en"
  }
}'

{
  "id": "abcdefghijk1234567890",
  "barcode": "ABCD1235",
  "pdf": "https://cdn.fourvenues.com/abcdefghijk1234567890-ABCD1235.pdf"
}