description: Profile on the R4 Subscription resource to enable R5-style topic-based subscriptions in FHIR R4.
package_name: hl7.fhir.uv.subscriptions
derivation: constraint
name: BackportSubscription
type: Subscription
elements:
  extension:
    index: 0
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: 1
      slices:
        subscriptionTopic:
          match: {url: null}
          schema: {type: Extension, isSummary: true, mustSupport: true, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-topic-canonical', index: 1}
          min: 1
          max: 1
  criteria:
    extensions:
      additionalCriteria: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-additional-criteria', min: 0, type: Extension, index: 3}
    elements:
      extension:
        index: 2
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: null
          slices:
            additionalCriteria:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-additional-criteria', index: 3}
              min: 0
  channel:
    extensions:
      heartbeatPeriod: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-heartbeat-period', min: 0, max: 1, type: Extension, index: 5}
      timeout: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-timeout', min: 0, max: 1, type: Extension, index: 6}
      notificationUrlLocation: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-notification-url-location', min: 0, max: 1, type: Extension, index: 7}
      maxCount: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-max-count', min: 0, max: 1, type: Extension, index: 8}
    elements:
      extension:
        index: 4
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: null
          slices:
            heartbeatPeriod:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-heartbeat-period', index: 5}
              min: 0
              max: 1
            timeout:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-timeout', index: 6}
              min: 0
              max: 1
            notificationUrlLocation:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-notification-url-location', index: 7}
              min: 0
              max: 1
            maxCount:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-max-count', index: 8}
              min: 0
              max: 1
      payload:
        index: 9
        extensions:
          content: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content', min: 1, max: 1, type: Extension, isSummary: true, mustSupport: true, index: 11}
        elements:
          extension:
            index: 10
            slicing:
              rules: open
              ordered: false
              discriminator:
              - {path: url, type: value}
              min: 1
              slices:
                content:
                  match: {url: null}
                  schema: {type: Extension, isSummary: true, mustSupport: true, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content', index: 11}
                  min: 1
                  max: 1
        required: [extension]
    required: [payload]
package_version: backport-0.1.0
extensions:
  subscriptionTopic: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-topic-canonical', min: 1, max: 1, type: Extension, isSummary: true, mustSupport: true, index: 1}
class: profile
kind: resource
url: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-subscription
base: http://hl7.org/fhir/StructureDefinition/Subscription
version: 0.1.0
required: [extension]