arazzo: 1.0.1
info:
  title: Metriport Patient Document Retrieval
  summary: Register a patient, trigger an IHE document query across the networks, poll until retrieval completes, list the resulting documents, and obtain a signed download URL.
  description: >-
    The canonical Metriport document-retrieval flow, modeled on the IHE
    cross-community document query (XCA) pattern. A patient is created under a
    facility, a document query is started to gather clinical documents from the
    connected health information networks, the query is polled until the download
    progress reports complete, the retrieved FHIR R4 DocumentReferences are
    listed, and a signed download URL is requested for a specific file. Every step
    inlines its request so the flow is self-contained.
  version: 1.0.0
sourceDescriptions:
- name: metriportApi
  url: ../openapi/metriport-openapi.yml
  type: openapi
workflows:
- workflowId: patient-document-retrieval
  summary: Create a patient, run an IHE document query, then list and download the retrieved documents.
  description: >-
    Implements the Metriport document-retrieval sequence end to end: patient
    registration, document query launch, status polling, document listing, and
    signed download URL retrieval.
  inputs:
    type: object
    required:
    - facilityId
    - patient
    - fileName
    - conversionType
    properties:
      facilityId:
        type: string
        description: Identifier of the facility the patient is registered under.
      patient:
        type: object
        description: Patient demographic packet used to create the Metriport patient.
      fileName:
        type: string
        description: File name of the retrieved document to request a download URL for.
      conversionType:
        type: string
        description: Desired conversion type for the downloaded document (e.g. pdf, html).
  steps:
  - stepId: createPatient
    description: Register the patient under the given facility so document queries can resolve against the networks.
    operationId: createPatient
    parameters:
    - name: facilityId
      in: query
      value: $inputs.facilityId
    requestBody:
      contentType: application/json
      payload: $inputs.patient
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      patientId: $response.body#/id
  - stepId: startDocQuery
    description: Start an IHE document query that fans the patient out to the connected health information networks.
    operationId: startDocumentQuery
    parameters:
    - name: patientId
      in: query
      value: $steps.createPatient.outputs.patientId
    - name: facilityId
      in: query
      value: $inputs.facilityId
    successCriteria:
    - condition: $statusCode == 200
  - stepId: pollDocQuery
    description: Poll the document query until the download progress reports complete.
    operationId: getDocumentQueryStatus
    parameters:
    - name: patientId
      in: query
      value: $steps.createPatient.outputs.patientId
    successCriteria:
    - context: $response.body
      condition: $.download.status == "completed"
      type: jsonpath
    outputs:
      status: $response.body#/download/status
  - stepId: listDocs
    description: List the retrieved FHIR R4 DocumentReferences available for the patient.
    operationId: listDocuments
    parameters:
    - name: patientId
      in: query
      value: $steps.createPatient.outputs.patientId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      documents: $response.body#/documents
  - stepId: getDownloadUrl
    description: Request a signed download URL for a specific retrieved document.
    operationId: getDocumentUrl
    parameters:
    - name: fileName
      in: query
      value: $inputs.fileName
    - name: conversionType
      in: query
      value: $inputs.conversionType
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      url: $response.body#/url
  outputs:
    patientId: $steps.createPatient.outputs.patientId
    documents: $steps.listDocs.outputs.documents
    url: $steps.getDownloadUrl.outputs.url