Subscription

Property	Value
Publisher
Name	Subscription
URL	http://hl7.org/fhir/StructureDefinition/Subscription
Status	draft
Description
Abstract	false

Structure

Path	Cardinality	Type	Description
Subscription	0..*	Subscription	The subscription resource is used to define a push-based subscription from a server to another system. Once a subscription is registered with the server, the server checks every resource that is created or updated, and if the resource matches the given criteria, it sends a message on the defined "channel" so that another system can take an appropriate action.
Subscription.id	0..1	http://hl7.org/fhirpath/System.String	The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Subscription.meta	0..1	Meta	The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
Subscription.implicitRules	0..1	uri	A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
Subscription.language	0..1	code	The base language in which the resource is written.
Subscription.text	0..1	Narrative	A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
Subscription.contained	0..*	Resource	These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
Subscription.extension	0..*	Extension	May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Subscription.modifierExtension	0..*	Extension	May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Subscription.status	1..1	code	The status of the subscription, which marks the server state for managing the subscription.
Subscription.contact	0..*	ContactPoint	Contact details for a human to contact about the subscription. The primary use of this for system administrator troubleshooting.
Subscription.end	0..1	instant	The time for the server to turn the subscription off.
Subscription.reason	1..1	string	A description of why this subscription is defined.
Subscription.criteria	1..1	string	The rules that the server should use to determine when to generate notifications for this subscription.
Subscription.error	0..1	string	A record of the last error that occurred when the server processed a notification.
Subscription.channel	1..1	BackboneElement	Details where to send notifications when resources are received that meet the criteria.
Subscription.channel.id	0..1	http://hl7.org/fhirpath/System.String	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Subscription.channel.extension	0..*	Extension	May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Subscription.channel.modifierExtension	0..*	Extension	May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Subscription.channel.type	1..1	code	The type of channel to send notifications on.
Subscription.channel.endpoint	0..1	url	The url that describes the actual end-point to send messages to.
Subscription.channel.payload	0..1	code	The mime type to send the payload in - either application/fhir+xml, or application/fhir+json. If the payload is not present, then there is no payload in the notification, just a notification. The mime type "text/plain" may also be used for Email and SMS subscriptions.
Subscription.channel.header	0..*	string	Additional headers / information to send as part of the notification.

Search Parameters

Name	Type	Description	Expression
_text	string	Search on the narrative of the resource
_content	string	Search on the entire content of the resource
_filter	token	Filter search parameter which supports a more sophisticated grammar for searching. See documentation for further details
_has	string	Provides limited support for reverse chaining - that is, selecting resources based on the properties of resources that refer to them (instead of chaining where resources can be selected based on the properties of resources that they refer to). See the FHIR search page for further documentation
_id	token	Logical id of this artifact	Resource.id
_lastUpdated	date	When the resource version last changed	Resource.meta.lastUpdated
_list	string	All resources in nominated list (by id, Type/id, url or one of the magic List types)
_profile	uri	Profiles this resource claims to conform to	Resource.meta.profile
_query	token	A custom search profile that describes a specific defined query operation
_security	token	Security Labels applied to this resource	Resource.meta.security
_source	uri	Identifies where the resource comes from	Resource.meta.source
_tag	token	Tags applied to this resource	Resource.meta.tag
_text	string	Search on the narrative text (html) of the resource
_type	token	Used when a search is performed in a context which doesn't limit the search to indicate which types are being searched. See the FHIR search page for further discussion
contact	token	Contact details for the subscription	Subscription.contact
criteria	string	The search rules used to determine when to send a notification	Subscription.criteria
payload	token	The mime-type of the notification payload	Subscription.channel.payload
status	token	The current state of the subscription	Subscription.status
type	token	The type of channel for the sent notifications	Subscription.channel.type
url	uri	The uri that will receive the notifications	Subscription.channel.endpoint