curl --request POST \
  --url https://api.agg.market/ramp/session \
  --header 'Content-Type: application/json' \
  --header 'x-app-id: <api-key>' \
  --data '
{
  "sourceAmount": "<string>",
  "sourceCurrencyCode": "<string>",
  "destinationCurrencyCode": "<string>",
  "serviceProvider": "<string>",
  "walletAddress": "<string>",
  "redirectUrl": "<string>"
}
'

{
  "id": "<string>",
  "token": "<string>",
  "widgetUrl": "<string>",
  "serviceProviderWidgetUrl": "<string>"
}