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Popular Open Source FHIR Libraries

Posted February 15, 2021
By Miona Short

With the FHIR standard rousing curiosity in healthcare circles, Redox has put together a list of the most popular open source FHIR Libraries!

1. HapiFHIR

Stars on github: 1,200

Language: Java

In their own words: HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. We are an open community developing software licensed under the business-friendly Apache Software License 2.0. HAPI FHIR is a product of Smile CDR.

Want more? Here’s their Demonstration/public test server

2. Synthea Patient Population Simulator

Stars on github: 966

Language: Java, Freemarker

In their own words: SyntheaTM is a Synthetic Patient Population Simulator. The goal is to output synthetic, realistic (but not real), patient data and associated health records in a variety of formats.

Want more? Synthea has a great wiki where you’ll find their currently supported disease modules and their academic paper

3. Microsoft AZURE FHIR server

Stars on github: 618

Language: C#, TSQL

In their own words: FHIR Server for Azure empowers developers – saving time when they need to quickly integrate a FHIR server into their own applications or providing them with a foundation on which they can customize their own FHIR service. 

Want more? Here’s their Secure FHIR Gateway and Proxy to FHIR Servers 

4. Firely

Stars on github: 555

Language: C#

In their own words: This is the official support SDK for working with HL7 FHIR on the Microsoft .NET platform.

Want more? Their library includes: 

  • Class models for working with the FHIR data model using POCO’s
  • Xml and Json parsers and serializers
  • A REST client for working with FHIR-compliant servers
  • Helper classes to work with the specification metadata, most notably StructureDefinition and generation of differentials
  • Validation of instances based on profiles
  • Evaluation FhirPath expressions

5. Google FHIR

Stars on github: 518

Language: Java, Python, Objective-C, and C++, Dart, Go, Ruby, and C#, Starlark, Shell, more to come!

In their own words: FhirProto is Google’s implementation of the FHIR Standard for Health Care data using Protocol Buffers (a language-neutral, platform-neutral extensible mechanism for serializing structured data). By leveraging Google’s core data storage format, FhirProto provides a type-safe, strongly validated FHIR format with cross-language support at a fraction of the size on disk. 

Want more? Set up an environment with FHIR examples

6. Python SMART on FHIR

Stars on github: 314

Language: Python

In their own words: This is fhirclient, a flexible Python client for FHIR servers supporting the SMART on FHIR protocol. The client is compatible with Python 2.7.10 and Python 3

Want more? Their data model classes are built using fhir-parser, that handles (de)serialization and allow to work with FHIR data in a Pythonic way. 

7. Javascript for FHIR

Stars on github: 304

Language: Javascript, Coffeescript, Shell

In their own words: JavaScript client for FHIR. Goals: Support FHIR CRUD operations; Friendly and expressive query syntax; Support for adapters that provide idiomatic interfaces in angular, jQuery, extjs, etc; Support for access control (HTTP basic, OAuth2, Cookies)

Want more? Their adapter implementations: jquery, YUIAngularJS, Native, Node

Bonus: Asymmetrik

Stars on github: 256

Language: Javascript

In their own words: Open Source secure REST implementation for the HL7 FHIR Specification. 

Want more? Mongo implementation example