description: Profile on the Subscription resource to enable R5-style topic-based subscriptions in FHIR R4 or R4B.
package_name: hl7.fhir.uv.subscriptions-backport
derivation: constraint
name: BackportSubscription
type: Subscription
elements:
  criteria:
    short: Canonical URL for the topic used to generate events
    mustSupport: true
    index: 0
    extensions:
      filterCriteria: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria', min: 0, short: Filtering critiera applied to events, type: Extension, mustSupport: true, isSummary: true, index: 2}
    elements:
      extension:
        index: 1
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: null
          slices:
            filterCriteria:
              match: {url: null}
              schema: {short: Filtering critiera applied to events, type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria', isSummary: true, index: 2}
              min: 0
  channel:
    extensions:
      heartbeatPeriod: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-heartbeat-period', min: 0, max: 1, type: Extension, short: Interval in seconds to send 'heartbeat' notification, index: 4}
      timeout: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-timeout', min: 0, max: 1, type: Extension, short: Timeout in seconds to attempt notification delivery, index: 5}
      maxCount: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-max-count', min: 0, max: 1, type: Extension, short: Maximum number of triggering resources included in notification bundles, index: 6}
    elements:
      extension:
        index: 3
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: null
          slices:
            heartbeatPeriod:
              match: {url: null}
              schema: {type: Extension, short: Interval in seconds to send 'heartbeat' notification, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-heartbeat-period', index: 4}
              min: 0
              max: 1
            timeout:
              match: {url: null}
              schema: {type: Extension, short: Timeout in seconds to attempt notification delivery, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-timeout', index: 5}
              min: 0
              max: 1
            maxCount:
              match: {url: null}
              schema: {type: Extension, short: Maximum number of triggering resources included in notification bundles, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-max-count', index: 6}
              min: 0
              max: 1
      type:
        extensions:
          customChannelType: {url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-channel-type', min: 0, max: 1, short: Extended channel type for notifications, type: Extension, mustSupport: true, isSummary: true, index: 8}
        elements:
          extension:
            index: 7
            slicing:
              rules: open
              ordered: false
              discriminator:
              - {path: url, type: value}
              min: null
              slices:
                customChannelType:
                  match: {url: null}
                  schema: {short: Extended channel type for notifications, type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-channel-type', isSummary: true, 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, short: Notification content level, type: Extension, mustSupport: true, isSummary: 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: {short: Notification content level, type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content', isSummary: true, index: 11}
                  min: 1
                  max: 1
        required: [extension]
    required: [payload]
package_version: 1.1.0
class: profile
kind: resource
url: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-subscription
base: http://hl7.org/fhir/StructureDefinition/Subscription
version: 1.1.0