Projo FHIR Documentation
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Extension: Delivery Time (Experimental)

Official URL: https://projo.evoleen.com/fhir/StructureDefinition/delivery-time Version: 0.1.0
Draft as of 2024-01-01 Computable Name: DeliveryTime

Copyright/Legal: Copyright (c) Projo. Licensed under CC0-1.0 (public domain dedication). FHIR(R) is the registered trademark of HL7 and is used with permission. This IG references WhatsApp(R), a trademark of Meta Platforms, Inc., for descriptive purposes only.

Stamps the actual instant a CommunicationRequest was delivered to the transport layer. Set by handleTaskDue (buildOutboundCRTransactionBundle) to new Date().toISOString() immediately before building and committing the CR — deliberately after all pre-commit FHIR round-trips (idempotency scan, atomic claim, locale resolution) so the patient's response window is measured from when we actually reach them, not shrunk by locale-resolution latency. Read by the deadline sweeper (keys off CR.occurrencePeriod.end, which is derived from delivery-time) and by operators for audit/triage. The only Task extension Projo actively writes today; the rest of the wa-* Task extensions are retired (see extensions-retired.fsh).

Documentation-only artifact. Projo's runtime extensions, code systems, identifier systems and search parameter are TypeScript constants and bootstrap-time resources, NOT deployed StructureDefinitions. This StructureDefinition exists to document the contract; the source of truth is src/functions/src/lib/fhir/types.ts and docs/FHIR_EXTENSIONS.md.

Context of Use

    This extension may be used on the following element(s)

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Delivery Time
... extension 0..0 Extension
... url 1..1 uri "https://projo.evoleen.com/fhir/StructureDefinition/delivery-time"
... value[x] 1..1 dateTime Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Delivery Time
... id 0..1 string Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "https://projo.evoleen.com/fhir/StructureDefinition/delivery-time"

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type dateTime: Stamps the actual instant a CommunicationRequest was delivered to the transport layer. Set by handleTaskDue (buildOutboundCRTransactionBundle) to new Date().toISOString() immediately before building and committing the CR — deliberately after all pre-commit FHIR round-trips (idempotency scan, atomic claim, locale resolution) so the patient's response window is measured from when we actually reach them, not shrunk by locale-resolution latency. Read by the deadline sweeper (keys off CR.occurrencePeriod.end, which is derived from delivery-time) and by operators for audit/triage. The only Task extension Projo actively writes today; the rest of the wa-* Task extensions are retired (see extensions-retired.fsh).

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Delivery Time
... extension 0..0 Extension
... url 1..1 uri "https://projo.evoleen.com/fhir/StructureDefinition/delivery-time"
... value[x] 1..1 dateTime Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Delivery Time
... id 0..1 string Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "https://projo.evoleen.com/fhir/StructureDefinition/delivery-time"

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type dateTime: Stamps the actual instant a CommunicationRequest was delivered to the transport layer. Set by handleTaskDue (buildOutboundCRTransactionBundle) to new Date().toISOString() immediately before building and committing the CR — deliberately after all pre-commit FHIR round-trips (idempotency scan, atomic claim, locale resolution) so the patient's response window is measured from when we actually reach them, not shrunk by locale-resolution latency. Read by the deadline sweeper (keys off CR.occurrencePeriod.end, which is derived from delivery-time) and by operators for audit/triage. The only Task extension Projo actively writes today; the rest of the wa-* Task extensions are retired (see extensions-retired.fsh).

 

Other representations of profile: CSV, Excel, Schematron

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()