curl --request POST \
  --url https://api.use3p.com/api/transaction/initialize \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amount": 123,
  "currency": "<string>",
  "email": "<string>",
  "name": "<string>",
  "phone": "<string>",
  "product": "<string>",
  "product_description": "<string>",
  "provider": "flutterwave",
  "redirect_url": "<string>",
  "reference": "<string>"
}
'

{
  "reference": "<string>",
  "url": "<string>"
}