curl --request POST \
  --url https://api.portalhq.io/api/v3/clients/me/integrations/meld/retail/widget \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "sessionData": {
    "countryCode": "<string>",
    "serviceProvider": "<string>",
    "sourceCurrencyCode": "<string>",
    "sourceAmount": "<string>",
    "destinationCurrencyCode": "<string>",
    "walletAddress": "<string>",
    "walletTag": "<string>",
    "paymentMethodType": "<string>",
    "redirectUrl": "<string>",
    "lockFields": [
      "<string>"
    ]
  },
  "externalSessionId": "<string>",
  "customerId": "<string>",
  "bypassKyc": true
}
'

{
  "data": {
    "id": "<string>",
    "token": "<string>",
    "widgetUrl": "<string>",
    "customerId": "<string>",
    "externalCustomerId": "<string>",
    "externalSessionId": "<string>"
  }
}