Open Source FHIR implementations

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Introduction

This page lists known open source implementations of the FHIR specification. For a list of running servers, see Publicly Available FHIR Servers for testing

Reference Libraries

• JAVA: https://github.com/jamesagnew/hapi-fhir - James Agnew / University Health Network
  • Open-source Java library for quickly creating FHIR Servers and Clients
  • Geared towards adding FHIR capability to existing applications (e.g. it's not a database, it's a library for quickly bolting FHIR on to your own database, or connecting to other FHIR servers as a client)
  • Supports all resource types, most operations, and both xml and json encodings
  • "Tinder" code generator (Maven plugin) creates model objects and clients from Profiles and Conformance statements

• DotNet: https://github.com/furore-fhir/spark
  • Reference server built in parallel with Grahame's to test the specification
  • Supports all resource types, searches, all operations, xml + json
  • Built in .NET with the .NET reference implementation, WebApi 2.0 library, Mongo DB for storage and search.

• Java - SMART on FHIR: https://sandbox.smarthealthit.org
  • Open source reference implementation of the SMART on FHIR stack in Java and MySql based on MitreId Connect and HAPI FHIR.
  • Incorporates synthetic and de-identified data sets for DSTU2 and STU3, as well data management tools including the SMART Patient Browser and FRED FHIR Resource Editor.
  • Sample applications for DSTU2 and STU3, client libraries for JavaScript, Python and Swift, and developer tools such as the FHIR Support Matrix
  • Technical documentation is at http://docs.smarthealthit.org and code is at https://github.com/smart-on-fhir

• Delphi: http://github.com/grahamegrieve/fhirserver
  • De facto reference server (runs at http://fhir.healthintersections.com.au)
  • general purpose server that implements all of the specification
  • development platform: (delphi / windows / mssql)

• Ruby: https://github.com/fhir-crucible/fhir_client
  • Open-source Ruby library for quickly creating FHIR applications
  • Geared towards adding FHIR capability to your Ruby applications.
  • Supports STU3 (default) and DSTU2, all resource types, most operations, and both xml and json encodings

Other Open source Implementations

• FHIRBase - open source relational storage for FHIR with document API based on PostgreSQL. FHIRBase is an attempt to take the best parts of Relational & Document Databases for persistence of FHIR resources. FHIRBase stores resources relationally and gives you the power of SQL for querying & aggregating. At the same time FHIRBase provides a set of SQL procedures & views to persist and retrieve resources as a json documents in one hop.

• the FHIR build tool itself is open source and includes various definitional and reasoning tools. See [1]. If you aren't signed up to the HL7 GForge, you can access the FHIR repository at [2] anonymously.

• JSON-to-XML-Converter - JavaScript based open source library to convert FHIR between JSON and XML. It is built from the FHIR XML Schema.

• [3] - DSTU-2 FHIR entities compatible with .Net Core

• Patients First NZ Terminology Server - Exemplar FHIR-based Terminology Service, including SNOMED CT International Edition.

• https://github.com/fhir-crucible/crucible - Crucible FHIR Testing Platform. Public instance at https://projectcrucible.org