curl --request GET \
  --url https://app.herondata.io/api/iso_applications/{heron_id} \
  --header 'x-api-key: <api-key>'

{
  "created": "2023-11-07T05:31:56Z",
  "end_user_heron_id": "<string>",
  "end_user_id": "<string>",
  "field_validations": [
    {
      "failure_reason": "<string>",
      "field_name": "<string>",
      "result": "passed",
      "validation_type": "<string>"
    }
  ],
  "filename": "iso_app.pdf",
  "heron_id": "iso_6hBjQT9k6KP2rLCXwjUJff",
  "processing_status": "processed",
  "quality_status": "fully_matched",
  "result": {},
  "source_email": {
    "date_sent": "2023-11-07T05:31:56Z",
    "date_sent_string": "<string>",
    "from_address": "<string>",
    "from_address_domain": "<string>",
    "from_name": "<string>",
    "html_body": "<string>",
    "html_or_text_body": "<string>",
    "subject": "<string>",
    "text_body": "<string>"
  }
}