curl --request POST \
  --url https://api.referralful.com/v1/affiliates \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "campaign_id": "<string>",
  "token": "<string>",
  "paypal_email": "<string>",
  "wise_email": "<string>"
}
'

{
  "id": "<string>",
  "object": "affiliate",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "<string>",
  "paypal_email": "<string>",
  "wise_email": "<string>",
  "state": "<string>",
  "stripe_customer_id": "<string>",
  "confirmed_at": "2023-11-07T05:31:56Z",
  "visitors": 123,
  "leads": 123,
  "conversions": 123,
  "campaign": {
    "id": "<string>",
    "object": "campaign",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "name": "<string>",
    "url": "<string>",
    "private": true,
    "commission_percent": 123,
    "commission_amount_cents": 123,
    "commission_currency": "<string>",
    "minimum_payout_cents": 123,
    "days_before_referrals_expire": 123,
    "days_before_commissions_are_due": 123,
    "max_commissions": 123,
    "max_commission_period_in_months": 123
  },
  "links": [
    {
      "id": "<string>",
      "object": "affiliate_link",
      "url": "<string>",
      "token": "<string>",
      "visitors": 123,
      "leads": 123,
      "conversions": 123,
      "affiliate_id": "<string>"
    }
  ],
  "coupon": {
    "id": "<string>",
    "object": "affiliate_coupon",
    "token": "<string>",
    "affiliate_id": "<string>"
  }
}