FHIR R4 Current Build
This page is part of FHIR R4 - the current version v4.0.0 - in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions .
Work Group FHIR Infrastructure & Application Implementation and Design Standards Status : Informative

This section provides information which will be useful for FHIR implementers, including information about available libraries, tools, and other similar resources, as well as where to seek help.

In addition to the content below, a number of implementation resources can be found on the Downloads Page .

This module also contains some specific documentation that relates to issues commonly encountered by developers:

For more general considerations, see the Security and Privacy module .

The following reference servers have been created by the FHIR team and made available to help implementers test their code. While the reference servers are not considered to be a normative part of the FHIR specification, the maintainers make every effort to ensure that they are fully compliant.

Note that there are a large number of servers available for testing that are not listed here. A full list is available on the HL7 Confluence system here .

Server Name Maintainer Link
Healthintersections Grahame Grieve http://fhir3.healthintersections.com.au/
Spark Furore Informatica http://spark.furore.com/
HAPI University Health Network / James Agnew http://fhirtest.uhn.ca/
sqlonfhir Telstra Health / Brian Postlethwaite http://sqlonfhir-stu3.azurewebsites.net/fhir

The following reference implementations are made available under an open-source license. These libraries may be used by developers to quickly add FHIR capabilities to their applications.

Language Library Link License
.NET / C# FHIR .NET API https://github.com/ewoutkramer/fhir-net-api BSD-3
Java HAPI FHIR http://hapifhir.io Apache 2.0
Swift Swift FHIR https://github.com/smart-on-fhir/Swift-FHIR Apache 2.0
JavaScript fhir.js https://github.com/smart-on-fhir/fhir.js MIT
Python Client Py https://github.com/smart-on-fhir/client-py Apache 2.0
Pascal FHIR Pascal http://hl7.org/fhir/downloads.html BSD-3

A number of tools are available to profilers wishing to create profiles for use in their implementations. A current list of tools can be found here on HL7 Confluence. (See the conformance module for information on profiling.)

A number of tools are available to solution testers who want to test FHIR implementations for conformance to the FHIR specification. A current list of such tools can be found here .

The following are a few ways that implementers can seek help as they work with FHIR:

The reference servers and reference implementations generally try to keep up to date with recent changes to the FHIR specification. Each server may have multiple endpoints which are held to a specific version of the specification, but generally there will also be endpoints available for testing which conform to a very recent build.

Efforts are now underway to create a curated collection of quality test data which can be used by FHIR implementers to help test their applications. This collection will be made available when it is ready.