curl --request GET \
  --url https://v2.firstpromoter.com/api/v2/company/reports/traffic_sources \
  --header 'Account-ID: <account-id>' \
  --header 'Authorization: Bearer <token>'

[
  {
    "source": "<string>",
    "id": "<string>",
    "data": {
      "clicks_count": 123,
      "revenue_amount": 123,
      "promoter_earnings_amount": 123,
      "referrals_count": 123,
      "customers_count": 123,
      "sales_count": 123,
      "refunds_count": 123,
      "cancelled_customers_count": 123,
      "referrals_to_customers_cr": 123,
      "clicks_to_customers_cr": 123,
      "clicks_to_referrals_cr": 123
    },
    "sub_data": [
      {
        "period": "<string>",
        "id": "<string>",
        "data": {
          "clicks_count": 123,
          "revenue_amount": 123,
          "promoter_earnings_amount": 123,
          "referrals_count": 123,
          "customers_count": 123,
          "sales_count": 123,
          "refunds_count": 123,
          "cancelled_customers_count": 123,
          "referrals_to_customers_cr": 123,
          "clicks_to_customers_cr": 123,
          "clicks_to_referrals_cr": 123
        }
      }
    ]
  }
]