A FHIR® Server with internal, fast CQL Evaluation Engine
Alexander Kiel will give a talk about Blaze at the HL7® FHIR® DevDays 2025 at Wed, June 4 11:15 - 11:35.
The goal of this project is to provide a FHIR® Server with an internal CQL Evaluation Engine which is able to answer population wide aggregate queries in a timely manner to enable interactive, online queries over millions of patients.
A demo installation can be found here (user/password: demo).
Blaze is stable and widely used in the Medical Informatics Initiative in Germany and in Biobanks across Europe.
Latest release: v1.6.1
- Implements large parts of the FHIR® R4 API
- Contains a fast CQL Evaluation Engine
- Supports the operations $evaluate-measure, $everything, $validate-code, $expand amongst others
- Offers terminology services including LOINC and SNOMED CT
- Scales horizontally via Distributed Storage Variant
- Comes with a modern Web Frontend
Documentation can be found here.
Blaze can be started with a single command using docker:
docker run -d --name blaze -p 8080:8080 samply/blaze:latestWhile Blaze is an open-source project, enterprise-grade commercial support and consulting services are available through KF Digital Health GmbH. They offer dedicated assistance and expert guidance for integrating, scaling, and deploying Blaze within your organization.
If your organization requires specific features or enhancements, custom development can be commissioned. Issues in our tracker that are labeled with commercial indicate functionalities that are available to be implemented by KF Digital Health GmbH upon request.
The developers of Blaze uses the YourKit profiler to optimize performance. YourKit supports open source projects with innovative and intelligent tools for monitoring and profiling Java and .NET applications. YourKit is the creator of YourKit Java Profiler, YourKit .NET Profiler and YourKit YouMonitor.
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