{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/community-health-systems/refs/heads/main/json-schema/chs-fhir-bundle-schema.json",
  "title": "CHS FHIR Bundle",
  "description": "Schema for a FHIR R4 Bundle returned by the Community Health Systems Patient Access and Provider Directory APIs.",
  "type": "object",
  "required": ["resourceType"],
  "properties": {
    "resourceType": {
      "type": "string",
      "const": "Bundle"
    },
    "id": {
      "type": "string"
    },
    "type": {
      "type": "string",
      "enum": ["searchset", "collection", "history", "transaction", "transaction-response", "batch", "batch-response", "document", "message"]
    },
    "total": {
      "type": "integer",
      "minimum": 0
    },
    "link": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "relation": { "type": "string" },
          "url": { "type": "string", "format": "uri" }
        }
      }
    },
    "entry": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "fullUrl": { "type": "string", "format": "uri" },
          "resource": {
            "type": "object",
            "properties": {
              "resourceType": {
                "type": "string",
                "enum": ["Patient", "ExplanationOfBenefit", "MedicationKnowledge", "Practitioner", "Organization", "Location", "Coverage", "Encounter", "Observation"]
              },
              "id": { "type": "string" }
            },
            "required": ["resourceType"]
          }
        }
      }
    }
  }
}