curl --request GET \
  --url https://api.prod.commenda.io/api/v1/filings/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "<string>",
    "corporation_id": "<string>",
    "form_title": "<string>",
    "description": "<string>",
    "country": "US",
    "country_specific_details": {
      "legal_name": "Example Inc.",
      "state": "CA",
      "state_specific_details": {
        "payment_interval": "<string>",
        "sales_tax_id": "<string>",
        "tax_types": [
          "<string>"
        ]
      }
    },
    "registration_tax_type_id": "REG_STATE_CEN_06_RST",
    "jurisdiction_name": "<string>",
    "filing_content_id": "FC_DE_3001_VAT",
    "period_start_date": "2023-12-25",
    "reporting_period_start_date": "2023-12-25",
    "reporting_period_end_date": "2023-12-25",
    "due_date": "2023-12-25",
    "filed_on": "2023-12-25",
    "registration_id": "<string>",
    "total_tax_filed": 135.92,
    "sales_details": {
      "total_sales": 12345.91,
      "taxable_sales": 12345.91,
      "sales_tax_collected": 771.62
    },
    "payment_details": {
      "amount_due": 771.62,
      "failure_details": {
        "failed_at": "<string>",
        "reason": "<string>"
      }
    }
  },
  "message": "Successfully fetched filing."
}