Spark FHIR

May 25, 2026 · View on GitHub

Spark is an open-source FHIR server developed in C#, initially built by Firely. Further development and maintenance is now done by Incendi.

Spark implements a major part of the FHIR specification and has been used and tested during several HL7 WGM Connectathons.

Getting started

There are three ways to get started with Spark. Either by using the NuGet packages and following the Quickstart Tutorial, by using the Docker Images, or building from source.

NuGet packages

Read the Quickstart Tutorial on how to set up your own FHIR Server using the NuGet Packages. There is also an example project that accompanies the Quickstart Tutorial which you can find here: https://github.com/incendilabs/spark-example

Set up the Spark FHIR server by using the Docker Images. Make sure you have installed Docker. On Linux you will need to install Docker Compose as well. After installing Docker you could run Spark server by running one of the following commands, found below, for your preferred FHIR Version. Remember to replace the single quotes with double quotes on Windows. The Spark FHIR Server will be available after startup at http://localhost:5555.

R4

curl 'https://raw.githubusercontent.com/FirelyTeam/spark/r4/master/.docker/docker-compose.example.yml' > docker-compose.yml
docker-compose up

STU3

curl 'https://raw.githubusercontent.com/FirelyTeam/spark/stu3/master/.docker/docker-compose.example.yml' > docker-compose.yml
docker-compose up`

Versions

R4

Source code can be found in the branch master. This is the version of Spark running at https://spark.incendi.no FHIR Endpoint: https://spark.incendi.no/fhir

STU3

Source code can be found in the branch master, we try to keep up-to-date with the STU3 version of FHIR. This is the version of Spark running at https://spark-stu3.incendi.no FHIR Endpoint: https://spark-stu3.incendi.no/fhir

DSTU2

DSTU2 is no longer maintained by this project. The source code can be found in the branch dstu2/master.

DSTU1

DSTU1 is no longer maintained by this project. The source code can be found in the branch dstu1/master.

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