Retrieve Letter

curl --request GET \
  --url https://sandbox.elationemr.com/api/2.0/letters/{id}/ \
  --header 'Authorization: Bearer <token>'

{
  "patient": 123,
  "practice": 123,
  "send_to_contact": {
    "id": 123,
    "first_name": "<string>",
    "last_name": "<string>",
    "middle_name": "<string>",
    "npi": "<string>",
    "org_name": "<string>",
    "specialties": [
      "<unknown>"
    ]
  },
  "attachments": [
    {
      "entity_date": "2023-11-07T05:31:56Z",
      "entity_description": "<string>",
      "entity_id": 123,
      "entity_type": 123,
      "handout": 123,
      "id": 123,
      "summary": "<string>"
    }
  ],
  "body": "<string>",
  "created_date": "2023-11-07T05:31:56Z",
  "deleted_date": "2023-11-07T05:31:56Z",
  "delivery_date": "2023-11-07T05:31:56Z",
  "direct_message_status": "<string>",
  "direct_message_to": "<string>",
  "display_to": "<string>",
  "document_date": "2023-11-07T05:31:56Z",
  "email_to": "<string>",
  "failure_unacknowledged": "<string>",
  "fax_attachments": true,
  "fax_status": "<string>",
  "fax_to": "<string>",
  "id": 123,
  "is_processed": true,
  "letter_type": "<string>",
  "referral_order": 123,
  "send_out": true,
  "send_to_elation_user": 123,
  "send_to_name": "<string>",
  "sign_date": "2023-11-07T05:31:56Z",
  "signed_by": 123,
  "subject": "<string>",
  "tags": [
    123
  ],
  "to_number": "<string>",
  "viewed_at": "2023-11-07T05:31:56Z",
  "with_archive": true
}