{
  "openapi": "3.0.2",
  "info": {
    "title": "CQL Evaluation Service",
    "description": "Capability statement for a service supporting CQL evaluation use cases",
    "license": {
      "name": "Creative Commons Zero v1.0 Universal",
      "url": "http://spdx.org/licenses/CC0-1.0.html"
    },
    "version": "3.0.0-ballot",
    "contact": {
      "name": "HL7 International / Clinical Decision Support"
    }
  },
  "externalDocs": {
    "url": "http://hl7.org/fhir/uv/cql/CapabilityStatement/cql-evaluation-service",
    "description": "FHIR CapabilityStatement"
  },
  "paths": {
    "/metadata": {
      "summary": "Access to the Server\u0027s Capability Statement",
      "description": "All FHIR Servers return a CapabilityStatement that describes what services they perform",
      "get": {
        "summary": "Return the server\u0027s capability statement",
        "operationId": "metadata",
        "responses": {
          "default": {
            "description": "Error, with details",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/OperationOutcome"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/OperationOutcome.xsd"
                }
              }
            }
          },
          "200": {
            "description": "the capbility statement",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/CapabilityStatement"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/CapabilityStatement.xsd"
                }
              }
            }
          }
        },
        "parameters": [
          {
            "$ref": "#/components/parameters/format"
          },
          {
            "$ref": "#/components/parameters/pretty"
          },
          {
            "$ref": "#/components/parameters/summary"
          },
          {
            "$ref": "#/components/parameters/elements"
          }
        ]
      }
    },
    "/Library": {
      "summary": "manage the collection of resources of type Library",
      "description": "Access to services to manage the collection of all resources of type Library",
      "get": {
        "summary": "Search all resources of type Library based on a set of criteria",
        "operationId": "searchLibrary",
        "responses": {
          "default": {
            "description": "Error, with details",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/OperationOutcome"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/OperationOutcome.xsd"
                }
              }
            }
          },
          "200": {
            "description": "the resource being returned",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/Bundle"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/Bundle.xsd"
                }
              }
            }
          }
        },
        "parameters": [
          {
            "$ref": "#/components/parameters/format"
          },
          {
            "$ref": "#/components/parameters/pretty"
          },
          {
            "$ref": "#/components/parameters/summary"
          },
          {
            "$ref": "#/components/parameters/elements"
          },
          {
            "name": "date",
            "in": "query",
            "schema": {
              "type": "string",
              "pattern": "([0-9]([0-9]([0-9][1-9]|[1-9]0)|[1-9]00)|[1-9]000)(-(0[1-9]|1[0-2])(-(0[1-9]|[1-2][0-9]|3[0-1])(T([01][0-9]|2[0-3]):[0-5][0-9]:([0-5][0-9]|60)(\\.[0-9]+)?(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00)))?)?)?"
            },
            "description": "The library publication date"
          },
          {
            "name": "name",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "Computationally friendly name of the library"
          },
          {
            "name": "title",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "The human-friendly name of the library"
          },
          {
            "name": "identifier",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "External identifier for the library"
          },
          {
            "name": "description",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "The description of the library"
          },
          {
            "name": "status",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "The current status of the library"
          },
          {
            "name": "url",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "The uri that identifies the library"
          },
          {
            "name": "version",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "The business version of the library"
          },
          {
            "name": "composed-of",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "What resource is being referenced"
          },
          {
            "name": "depends-on",
            "in": "query",
            "schema": {
              "type": "string"
            },
            "description": "What resource is being referenced"
          }
        ]
      }
    },
    "/Library/{rid}": {
      "summary": "Read/Write/etc resource instance of type Library",
      "description": "Access to services to manage the state of a single resource of type Library",
      "get": {
        "summary": "Read the current state of the resource",
        "operationId": "readLibrary",
        "responses": {
          "default": {
            "description": "Error, with details",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/OperationOutcome"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/OperationOutcome.xsd"
                }
              }
            }
          },
          "200": {
            "description": "the resource being returned",
            "headers": {
              "ETag": {
                "description": "Version from Resource.meta.version as a weak ETag",
                "schema": {
                  "type": "string"
                }
              }
            },
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/Library"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/Library.xsd"
                }
              }
            }
          }
        },
        "parameters": [
          {
            "$ref": "#/components/parameters/rid"
          },
          {
            "$ref": "#/components/parameters/summary"
          },
          {
            "$ref": "#/components/parameters/format"
          },
          {
            "$ref": "#/components/parameters/pretty"
          },
          {
            "$ref": "#/components/parameters/elements"
          }
        ]
      }
    },
    "/$cql": {
      "summary": "System level operation $cql",
      "description": "Operation $cql invoked at the system level",
      "get": {
        "summary": "$cql (system)",
        "description": "The $cql operation evaluates a CQL expression and returns the result. The operation has a single return parameter that can be of any type to accommodate the possible result types of a CQL expression.",
        "operationId": "op-cql-system",
        "responses": {
          "default": {
            "description": "Error, with details",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/OperationOutcome"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/OperationOutcome.xsd"
                }
              }
            }
          },
          "200": {
            "description": "Operation response",
            "content": {
              "application/fhir+json": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/fhir.schema.json#/definitions/Parameters"
                }
              },
              "application/fhir+xml": {
                "schema": {
                  "$ref": "https://hl7.org/fhir/R4/Parameters.xsd"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "parameters": {
      "rid": {
        "name": "rid",
        "in": "path",
        "description": "id of the resource (\u003dResource.id)",
        "required": true,
        "allowEmptyValue": false,
        "style": "simple",
        "schema": {
          "type": "string"
        }
      },
      "hid": {
        "name": "hid",
        "in": "path",
        "description": "id of the history entry (\u003dResource.meta.versionId)",
        "required": true,
        "allowEmptyValue": false,
        "style": "simple",
        "schema": {
          "type": "string"
        }
      },
      "summary": {
        "name": "_summary",
        "in": "query",
        "description": "Requests the server to return a designated subset of the resource",
        "allowEmptyValue": true,
        "style": "form",
        "schema": {
          "type": "string",
          "enum": [
            "true",
            "text",
            "data",
            "count",
            "false"
          ]
        }
      },
      "format": {
        "name": "_format",
        "in": "query",
        "description": "Specify alternative response formats by their MIME-types (when a client is unable acccess accept: header)",
        "allowEmptyValue": true,
        "style": "form",
        "schema": {
          "type": "string",
          "format": "mime-type"
        }
      },
      "pretty": {
        "name": "_pretty",
        "in": "query",
        "description": "Ask for a pretty printed response for human convenience",
        "allowEmptyValue": true,
        "style": "form",
        "schema": {
          "type": "boolean"
        }
      },
      "elements": {
        "name": "_elements",
        "in": "query",
        "description": "Requests the server to return a collection of elements from the resource",
        "allowEmptyValue": true,
        "style": "form",
        "explode": false,
        "schema": {
          "type": "array",
          "format": "string",
          "items": {
            "format": "string"
          }
        }
      },
      "count": {
        "name": "_count",
        "in": "query",
        "description": "The maximum number of search results on a page. The server is not bound to return the number requested, but cannot return more",
        "schema": {
          "type": "number"
        }
      }
    }
  }
}