description: Profile on the Subscription resource to enable R5-style topic-based subscriptions in FHIR R4 or R4B. package_name: ca.on.phsd.r4-alpha derivation: constraint name: BackportSubscription type: Subscription elements: extension: {index: 0} criteria: short: Canonical URL for the topic used to generate events mustSupport: true index: 1 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: 3} elements: extension: index: 2 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: 3} 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: 5} 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: 6} 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: 7} elements: extension: index: 4 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: 5} 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: 6} 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: 7} 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: 9} elements: extension: index: 8 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: 9} min: 0 max: 1 payload: index: 10 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: 12} elements: extension: index: 11 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: 12} min: 1 max: 1 required: [extension] required: [payload] package_version: 1.0.0-BallotDraft0.1 extensions: {} class: profile kind: resource url: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-subscription base: http://hl7.org/fhir/StructureDefinition/Subscription version: 1.2.0-ballot